Timewave DSP-232 Operating Manual

Multi-mode

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DSP-232

Multi-Mode

Operating Manual

Timewave Technology Inc.

1025 Selby Ave, suite 101

St. Paul, MN 55104, USA

(651) 489-5080

http://www.tmewave.com

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Page 1 DSP-232 Multi-Mode Operating Manual Timewave Technology Inc. 1025 Selby Ave, suite 101 St. Paul, MN 55104, USA (651) 489-5080 http://www.tmewave.com...
Page 2: Fcc Regulations
Warranty Registration Card. Only a portion of all warranty cards are return, which makes it hard to keep Timewave customers up to date. From time to time, Timewave offers updates to its products--we can only tell you about these updates if we have your warranty card on file, so send it in if you haven’t already done so. Returning your warranty card also places you on Timewave’s catalog mailing list.
Page 3: Table Of Contents
..........................ii Chapter 1 - DSP-232 Capabilities ............................. 1-1 What did & didn’t come in the box ....................1-2 A Tour of the DSP-232........................1-3 The Front ..........................1-3 Mode Indicators ........................1-3 Status Indicators ........................1-5 Other Indicators ........................1-6 The Back..........................
Page 4 Dual Port Mode Set Up......................6-6 Building your own APRS cable ....................... 6-6 Schematic Diagram for the APRS Adapter Cable ..............6-7 DSP-232/ULTIMETER II Stand Alone Weather Set Up ..............6-7 GPS Specific Commands ....................... 6-8 Chapter 7 - MailDrop Operation MailDrop Memory..........................
Page 5 DSP-232 Multi-Mode Operating Manual Command Definitions for AMTOR ..................7-11 PACTOR MailDrop.......................... 7-12 Command Definitions for PACTOR ..................7-12 MailDrop Commands ........................7-13 Chapter 8 - ASCII and BAUDOT Operation Setting Up for ASCII........................8-1 Setting Up for BAUSDOT........................ 8-2 Receiving ASCII &...
Page 6 Chapter 13 - Troubleshooting A Troubleshooting Primer ....................... 13-1 Power Supply.......................... 13-2 Power Supply Cable ....................... 13-2 The DSP-232 .......................... 13-2 Cable from the DSP-232 to Computer..................13-2 Computer/Software......................... 13-2 Cable from DSP-232 to Radio ....................13-2 Radio............................13-3 General Error Messages......................... 13-4 Packet Error Messages ........................
Page 7: Capabilities
Morse communications. This unit is state-of-the-art and has been designed with an eye toward the future. The architecture and parts used in the DSP-232 allow room for future technological enhancements. Timewaves’s PK- 232MBX left a decade long legacy of dependability and high-performance digital communication, the DSP-232 will carry you through the next decade, and well into the next century.
Page 8: What Did & Didn't Come In The Box
If you want to operate your DSP from a “power cube” that plugs into your wall outlet, you can purchase one locally or you can purchase the AC-5 power supply from Timewave or through your favorite electronic equipment dealer.
Page 9: A Tour Of The Dsp-232
In the Mode area, there are twelve possible symbols that can appear. Below is a rundown of these symbols. You will find a legend on the front of the DSP-232 which tells you what symbols stand for what mode. ‘P’ will light when you’re using VHF/UHF or HF Packet at 9600, 1200, or 300 bps.
Page 10: Status Indicators
Now, let’s move on to the Status Indicators. There are ten symbols which may appear in the Status area. Below is an explanation of these symbols. The legend on the front of the DSP-232 tells you what the symbols mean as well.
Page 11: Other Indicators
Chapter 1 The DSP-232 ‘F’ lights when you’re in FEC mode in AMTOR or PACTOR. ‘A’ comes on when you’re in ARQ mode in AMTOR. ‘L’ comes on when you’re in Listen mode in AMTOR or PACTOR ‘t’ comes on when sending “traffic” in AMTOR.
Page 12 Chapter 1 The DSP-232 To the left of the Mode LCD display is ‘MAX’. This is the abbreviation for Maximum Throughput. This will light when PACTOR data is being throughput as fast as the mode allows. When in PACTOR, with the ‘P’ showing in the Mode area, you will be able to distinguish the top line of the ‘P’...
Page 13: The Back
The RS-232 I/O receptacle is where you’ll plug in the cable that connects to your computer. Finally, the there is the RESET button which allows you to perform a hard reset on the DSP-232. This ends your tour of the DSP. Let’s move on to the next chapter to hook up your computer and radio.
Page 14: Chapter 2 - Power Supply And Computer Installation
Chapter 2 Power Supply and Computer Installation Chapter 2 Power Supply and Computer Installation Overview In this chapter, you’ll power up the DSP and connect it to the RS-232 serial port of your computer. After the connection has been made, you’ll perform a quick check of the DSP’s internal firmware. You’ll also check the DSP’s internal modem by performing the all-important “loop-back”...
Page 15: Connecting Your Computer To The Dsp
The style of connector you have on your computer is probably a DB-25F (25-pin), a DB-9 (9-pin), or a mini Din-8 for Apple computers (8-pin). Here’s a table of pin assignments to wire the DSP’s RS-232 I/O port to a typical computer’s serial port see diagram on next page: from Apple DSP-232 to... mini- RS-232 I/O DB-25F DB-9...
Page 16 Read the manufacturer’s recommendations for connecting the serial port to a telephone-type modem and connect your DSP the same way. The DSP-232 is configured as Data Communications Equipment (DCE)—it transmits data on pin-2. Most computers and terminals are configured as Data Terminal Equipment (DTE) transmitting data on pin-3.
Page 17: Peripherals And Irq Conflicts
“attention.” When two devices have the same IRQ codes, their signals fight for the CPU’s attention and cause all kinds of trouble. Therefore, if COM 1 or COM 3 are occupied, connect the DSP-232 to COM 2 or COM 4 if you can.
Page 18: System Start-Up And Loop-Back Tests
Handshake = XON/OFF Note: Early version of PC PakRatt for Windows 2.0 do not list the DSP-232 in the TNC menu. To operate your DSP-232, you will select the DSP-1232 from the TNC menu. To PC PakRatt for Windows, your DSP-232 ‘looks’...
Page 19 If a loop-back jumper is included with your shipment of the DSP-232, plug one end into the 1 hole (TX) and the other end into the 4 hole (RX) of Radio 1 port on the back of the DSP-232, and go to step 7. If you did not receive a loop-back jumper, continue following the steps.
Page 20 DISCONNECT The command HBAUD (or HB for short) controls the data rate of the DSP-232. Currently, the DSP-232 is in 1200 bps (HBAUD 1200) VHF Packet. You want to be in 300 bps HF Packet. After the cmd: prompt, enter:...
Page 21: Radio Port 2 Test
9600 bps VHF Packet modem on Radio Port 2. 1. Take the Loop-back jumper that came with your DSP-232, or the jumper you crafted for the previous test an plug one end into 1 hole (TX) and the other end into the 4 hole (RX) of the 8-pin RADIO-2 socket on the DSP’s rear panel.
Page 22 After you’ve entered this, the DSP will print the following on the screen: MYcall was DSP232 MYcall now AAA 6. Enter the following command to “connect” to AAA: (the DSP-232 recognizes the letter C to mean “connect to...”) C AAA...
Page 23 This is an alternate means of selecting a modem. We use HBAUD in previous examples, and you could at this point too. But, in an effort to get you familiar with the DSP-232’s commands, we had you use the MODEM command. (After you are done with this entire Loop-back test type DIRECT at the cmd: to see the whole list of modems available for the DSP-232.)
Page 24 After you’ve entered this, the DSP will print the following on the screen: MYcall was DSP232 MYcall now AAA 20. Enter the following command to “connect” to AAA: (the DSP-232 recognizes the letter C to mean “connect to...”) C AAA...
Page 25: Chapter 3 - Radio Installation
Radio Installation Overview This chapter describes how to connect the DSP-232 to your radio receiver or transceiver. If You Just Want to Listen If you’re a short-wave listener or are only interested in receiving and not transmitting signals, the audio connection to the DSP is simple—just plug one end of the supplied audio cables into either the RX AUDIO 1 or AUDIO 2...
Page 26: Connections For Specific Transceiver Models
Chapter 3 Radio Installation • the AEA-supplied radio cable for each radio you want to connect • a microphone or accessory-plug connector for your transceiver • a pin assignment diagram of your radio’s microphone and/or accessory port • a low-wattage (under 40W) soldering iron and solder •...
Page 27 Chapter 3 Radio Installation Figure 3-2 DSP to Radio Cable Connections for Radio Ports 1 and 2 If you’ll be using a Packet channel that’s shared with voice users, then you should connect the black wire to the Squelch status pin of the connector. This will prevent the DSP from transmitting when there’s a received signal strong enough to open the squelch.
Page 28: Connections For Direct Fsk On Rtty
Chapter 3 Radio Installation 8. Connect the brown wire to the main ground on the connector. This ground is the one used for the PTT and receive audio. You should connect the Silver Shield/Drain wire to this ground only if there isn’t a separate mike ground as described in the previous step.
Page 29 Chapter 3 Radio Installation Note: If you don’t have a spare receiver to monitor the tone, a “quick-’n’-dirty” way to set the AFSK level is to turn the AFSK LEVEL pot on the back of the DSP halfway between its stops, but if you happen to have a deviation meter such as AEA’s DM-1 Deviation Meter, set the AFSK LEVEL’s pot so the DSP’s deviation is 3.25 KHz, peak.) 2.
Page 30 Look for jumpers JP10 and JP11 near the fuse at the rear of the DSP-232 as shown in figure 3-6 below. Jumper JP10 controls the output level of radio port 1, and JP11 controls the output level of port 2.
Page 31: Ssb Transceiver Adjustments
AFSK output level to LOWer range. Repeat step 7 when this has been completed. Figure 3-6 DSP-232 AFSK HIGH/LOW Jumpers 8. Press K to return to receive mode. 9. Press Q to leave the CALIBRATE mode.
Page 32 Chapter 3 Radio Installation Note: make all connections with all power off. 1. Connect your fabricated cable from the DSP’s RADIO 1 or RADIO 2 connector to your SSB radio. 2. Connect your SSB radio to a dummy load. 3. Turn on your computer, start its terminal program, enter its Dumb Terminal mode, then turn on the DSP. 4.
Page 33 Chapter 3 Radio Installation 18. Adjust the software controlled THRESHLD (default 50) up or down until the DCD light is lit by the noise output from your receiver, then increase it slowly until the DCD light is no longer lit. Alternatively, you can type AUTOTHR at the cmd:, and the DSP will automatically adjust the threshold to the proper setting.
Page 34: Chapter 4 - Terminal Commands
MailDrop, and GPS commands are listed and explained in their respective chapters elsewhere in this manual. There are five TNC control modes you need to be familiar with to make the DSP-232 communicate with your terminal. These are: the Command mode, Converse mode, Transparent mode, Host mode, and KISS mode. Below is a brief desicription of each of these modes.
Page 35: Transparent Mode
DSP-232. Host mode permits programmers to eliminate, reduce, or greatly simplify the transfer and subsequent encoding and decoding of critical information. In Host mode, the DSP-232 is unfriendly; humans would find it difficult to operate the DSP in Host mode. KISS Mode The DSP-232 provides a simple, asynchronous, computer-to-TNC protocol for a raw HDLC TNC or “KISS”...
Page 36: List Of General And Terminal Related Commands
5-bit character to make it a printable ASCII character in the range of $40-5F. All characters are treated this way, including CR, LF, LTRS, and FIGS. When the user enters 5BIT, the DSP-232 displays “OPMODE now BAUDOT”. This is not strictly true; however, the ‘b’ for Baudot will glow in the Mode window.
Page 37 Zero ro 65,535 ($0 to $FFFF) setting and Address in the DSP-232 memory. The ADDRESS sets an address somewhere in the DSP-232’s memory map. This command is usually used with the IO, MEMORY and the PK commands. It is used primarily by programmers and is of no use for normal DSP-232 operation.
Page 38 Immediate Command Host: An ANALOG is an immediate command that switches your DSP-232 into the ANALOG mode. Most DSP users will not use this mode the way Packet and Baudot are used. Rather, application display programs will use this mode to process FAX signals, allowing gray scale and color images to be displayed. The Analog mode paases data for communications modes that require “gray scales”...
Page 39 Chapter 4 Terminal Interfacing The value n is sent directly to the DSP chip to control the sample rate of the ANALOG mode. AUTOBaud ON|OFF Default: OFF Host: AB Autobaud routine always present at power-up or RESTART. Autobaud routine active at RESET or power-up only if battery jumper is removed. With AUTOBAUD OFF, the DSP performs the autobaud function only when powering-up or after a RESET.
Page 40 Immediate Command Host: Not Supported CALIBRATE is an immediate command that starts the AFSK transmit tone calibration routine. The DSP-232 provides a continuous on-screen display of AFSK generator tone frequencies in Hertz. The Calibrate command simplifies transmitter calibration of AFSK levels.
Page 41 Chapter 4 Terminal Interfacing “n” 0 to 2 specifies how your DSP sends characters to your terminal. CASEDISP allows you to set the case of the characters your DSP sends to your terminal; it offers three possible modes: CASEDISP 0 ”As is”...
Page 42 For those applications that can’t take advantage of the UBIT command, the following terminal-related CUSTOM features are available in the DSP-232. See Appendix C for a complete list. If bit 2 is set to 1, (default), a break on the RS-232 line will put the DSP into the Bit2, position $0004: Command mode (except for Host mode).
Page 43 Immediate command Host: DQ DIRECT is an immediate command that displays a directory listing of all available DSP-232 Modems. When the DIRECT command is given, the modem list is displayed as shown below: The DIRECT command can also take a modem number as an arguement to display only the information on that particular modem including the argument of 0 which displays only the date of the modem EPROM.
Page 44 Immediate Command Host: DP DSPDATA is an immediate command that places the DSP-232 into the DST DATA mode. In this mode, a host computer program may communicate directly with the Analog Devices 2105 chip. In this mode, the DSP-232 is functionally only a modem.
Page 45 Chapter 4 Terminal Interfacing cmd:DISP A cmd:DISP B 8Bitconv 3Rdparty AWlen MAildrop PARity 3 (even) MDMon TBaud 1200 MDPrompt Subject:/Enter message, ^Z (CTRL-Z) or /EX to end MMsg MTExt Welcome to my personal mailbox. MYMail none TMail TMPrompt GA subj/GA msg, '/EX' to end.
Page 46 Host: EC Characters received from the terminal are echoed by the DSP-232. Characters aren’t echoed. The ECHO command controls local echoing by the DSP-232 when in the Command or Converse mode, but not in the Transparent mode. ♦ Set ECHO ON (default) if you don’t see your typing appear on your display.
Page 47 Chapter 4 Terminal Interfacing With EXPERT OFF, expert-level commands may not be accessed and don’t appear in any output of the DISPLAY command--an attempt to use one of these commands will result in the error message “?EXPERT command.” All mmediate commands (e.g., CONNECT and PACKET) are ‘NOVICE’ commands. The error message for an Expert command is separate from the unknown command message: cmd: BBQ ?What?
Page 48 Chapter 4 Terminal Interfacing CText Novice Retain MDigi Novice Novice MFIlter Novice HOMebbs Retain MFrom Retain Novice Monitor Novice MYAlias Retain MProto MYALTcal Retain MRpt MYcall Novice Retain MStamp Novice MYGate Novice Retain Retain MYIdent Novice Retain MVia Retain MYPTcall Novice Retain MXmit...
Page 49 Chapter 4 Terminal Interfacing TDChan PPersist TXRev Novice RESptime USOs Novice RQtime WIdeshft Novice SLottime Novice WOrdout Novice TXdelay Novice XBaud TXTail Commands not displayed: cmd:DISPLAY S ADDress SCan Retain STep ALTModem STEPLen BARgraph STEPRest BRight Novice STEPSize CCitt STEPUp EXPert Novice Retain...
Page 50 Bit 2: Controls the DSP-2232 and PK-900 extended Host mode. (This isn’t used in the DSP-232.) Bits 3-7 are reserved for future use. To maintain backward compatibility with older programs written to use the ON|OFF form of the Host command, Host ON is equivalent to Host $01 described above.
Page 51 Host to TNC Communication: STA LED illuminated. TNC to Host Communication: CON LED illuminated. Host OFF—entering three (CTRL-Cs)—will force KISS OFF. Details on the use of KISS TNC protocol are contained in AEA’s Technical Reference Manual — Model DSP-232 Data Controller. KISSAddr n Default: 0...
Page 52 The MODEM command determines what DSP Modem is selected for the DSP-232. The Modems available in EPROM are listed below. The DSP modems included in the DSP-232 can be shown with the DIRECT(ory) command and are listed below. bps 2125/2295...
Page 53 Chapter 4 Terminal Interfacing You DSP-232 always switches to a data transfer mode at the time of connection, unless NOMODE is ON. NEWMODE determines how your DSP behaves when the link is broken or when the state is changed from Transmit to Receive with the RECEIVE or CWID characters.
Page 54 Host: QA Modem number to be selected when the DSP DATA mode is entered. QDATA sets the DSP-232 modem that will automatically be selected when the DSP DATA mode is entered. See the DSPDATA and MODEM commands for more information.
Page 55 Chapter 4 Terminal Interfacing RADio n Default: 1 Host: RA 0, 1, 2 with 1 meaning Radio Port 1 and 2 meaning Radio Port 2. The radio command allows the user to control which radio port is selected. Type RADIO 1 to select Radio Port 1 (default). To select Radio Port 2, simply enter RADIO 2, or RAD 2. Typing RADIO 0 disables operation of both Radio Ports.
Page 56 Fifty is the default for the Threshold control. You can manually enter a threshold value. Alternatively, you can use the AUTOThr command and the DSP-232 will automatically adjust the threshold to the correct setting for the operating mode you are currently in.
Page 57 Default: 50 Host: Tr 0-100 adjusts how the DSP-232 manipulates amplitude of received signals on 1200 bps Packet. Twist receive (TWRcv) allows you to compensate for poor signal reception by adjusting the amplitude of the high tones. Entering values less than 50 allow you to lower the amplitude of the received signal’s high tone. Entering values greater than 50 allow you to increase the amplitude of received signal’s high tone.
Page 58 The UCMD is an extension of the UBIT command which allows up to 15 commands that take numeric arguments to be added to the DSP-232 without burdening users with a large number of commands. The functions controlled by UCMD are things that most users will never have to change. Still they are important enough to some users or applications programs that we have included them under the umbrella command UCMD.
Page 59 When XMITOK is OFF, the PTT lines to your transmitter on both Radio Ports are disabled - the transmit function in inhibited. All other DSP-232 functions remain the same. Your DSP generates anmd sends packets as requested, but does not key the radio’s PTT line.
Page 60 This command is primarily of interest to HOST mode programmers. ZFREE is an immediate read-only command that returns the amount of data RAM that is available in the DSP-232. n is the number of free internal memory blocks. Each memory block holds 28 bytes of data.
Page 61 Chapter 4 Terminal Interfacing Reserved Reserved ZSTATUS is meant to be a read-only command for use by host applications in determining the status of the unit, although the user may write a value to ZSTATUS if desired. Bit 0 shows whether all characters have been transmitted in non-packet modes.
Page 62: Chapter 5 - Packet Operation
The RADIO command allows either radio port 1 (default) or radio port 2 to be selected. To operate on radio port 1, simply type RADIO 1 (or RAD 1) at the DSP-232 command prompt. To select radio port 2, simply type RADIO 2.
Page 63: Tuning In Packet Stations Vhf/Uhf
*** HBAUD now 1200 You are currenty in the DSP-232’s default radio port -- 1, with the default VHF Packet setting -- 1200 bps. You can change your Radio Port at any time with the RAD command. You can also select other Packet modems that the DSP-232 contains.
Page 64 RADIO now 1 cmd: The DSP-232 is now on Radio Port 1, however it is still configured for 9600 bps Packet operation -- you want 1200 bps operation. You need to switch to MODEM 13, so type the following: MODEM 13...
Page 65 You have got a feel for how to switch ports and modems. If you have followed along, your DSP is now configured for 1200 bps Packet using Port 1. The thing to remember is that there are two Radio Ports on the DSP-232 and one MODEM and HBAUD setting.
Page 66: What It Means
Chapter 5 Packet Operation Note: You might see data (packets) show up on the DSP’s tuning indicator which don’t print on the screen. This is normal and is a function of the MONITOR and the MPROTO commands. What It Means There are different types of packets that will mean different things to your DSP—it keeps track of and knows what to do with all these packets so you don’t have to worry about them most of the time.
Page 67: Who's Out There
Chapter 5 Packet Operation Mail for: K6RFK N7ML WO6P ...is a BEACON packet from KD7NM. Since the packet is addressed to “MAIL” we can assume KD7NM is a packet Bulletin Board System (PBBS) broadcasting to the area that there’s mail waiting for these three stations to read.
Page 68: Connecting
Chapter 5 Packet Operation now. Once you’ve made this connection, enter RADIO 1 or RADIO 2 at the cmd: for the corresponding Radio Port you’ll now use for practice runs. Adjust squelch so the DCD light just goes out. With your program and DSP up and running so the cmd: prompt is at the ready, you’re now all set to have a thrilling monologue.
Page 69: Setting Up For Transmitting
Chapter 5 Packet Operation With this message, the connected station has the option of waiting for you to “pick up the phone” or to leave a message in your maildrop. To enable your CTEXT message, turn CMSG ON. If you don’t want your DSP to send the message, leave CMSG OFF.
Page 70: Going On The Air
Chapter 5 Packet Operation Nodes usually have a CQ command; to call CQ through it, you’d connect, first, then enter CQ—it’ll send your callsign out for you. To send a CQ through a couple of nodes to a distant one, you’ll have to conect to each node as described in the Digipeating section below.
Page 71: Your Dsp Acts As A Node
“help” line to remind its user of the commands it knows, which are listed below its I.D. Your DSP acts as a node! Your DSP-232 node firmware supports local acknowledgment (acks) of packets like a full-service BBS/node does, so instead of users having to digipeat through your MYALIAS or MYCALL callsign to connect to a destination station, they can now simply connect to your MYGATE callsign.
Page 72: Operating Your Node
Chapter 5 Packet Operation Note: with each station connected to your node you’ll lose a “logical” channel. So, if you have GUSERS set to 3 and three source stations have connected to three destination stations through your node, they’ll take up six of your ten channels, leaving you with only four channels to accept and initiate contacts.
Page 73 Chapter 5 Packet Operation GATE>USER (RR) USER-15>REMOTE [I]: hello. REMOTE>USER-15 (RR) REMOTE>USER-15 [I]: Yes? GATE>USER [I]: USER-15>REMOTE (RR) Yes? USER>GATE (RR) Once the connection is established with the destination station, the node notifies the user that the connection has been made then goes from the “Command” mode into the “Converse” mode. Now, whatever the user sends goes to the destination station as data instead of to the node as a command.
Page 74: Digipeating
Chapter 5 Packet Operation Digipeating Sooner or later, you’ll want to connect to a packet station that’s beyond your immediate radio range or is inaccessible from your location. If a third packet station is on the air and both you and the station you want to talk to are in range of that third station, the third station can act as relay station for your packets—you simply enter the digipeater routing path in your connect request.
Page 75: Multiple Connection Operation
Chapter 5 Packet Operation Multiple Connection Operation Because packet radio supports multiple QSOs on the same frequency, you can converse with more than one station at a given time. The DSP offers ten channels, (0-9), each of which can support a conversation. This capability is a powerful feature of your DSP, let alone a mentally challenging one when you have more than a couple of QSOs going on at once! This is when Windows and Mac users will appreciate AEA’s TNC control programs: PC PakRatt for Windows and MacRatt.
Page 76: Chcall
Chapter 5 Packet Operation Say, by coincidence, the station you’re connected to sends a character which is the same one you’ve set for CHSWITCH. If you want to be able to tell the difference between the CHSWITCH characters you type and the same character from other station, set CHDOUBLE ON.
Page 77: Transmitter Adjustments
Being off-frequency by only 20 Hz makes a noticeable difference in the DSP’s ability to copy. Once you are tuned in, the superior filtering ability of the DSP-232 improves HF packet performance. Follow the tuning procedure below carefully for the best results in tuning in HF packet stations.
Page 78 Chapter 5 Packet Operation I-frames, until it receives a polling frame from the master. The slave station may only send an I-frame to the master after a poll frame has been received. The packet timing of the master station is critical for proper meteor scatter operation. In a normal AX.25 packet connect, the FRACK timer counts down until it reaches zero and then a RETRY of a poll frame is sent.
Page 79 Chapter 5 Packet Operation Monitoring the Packet Networking Switches There are other types of frames used by networking switches that the DSP doesn’t normally display. These frames can be seen with MPROTO—turning it on allows all AX.25 frames to be displayed. Some packets you might see with MPROTO ON will contain information that may interfere with the display on your terminal or computer causing it to look “funny”.
Page 80: Packeting Through Voice Repeaters
Chapter 5 Packet Operation 3) Set MONITOR to at least 1. 4) Go to Converse mode by entering K, then send a few packets by pressing the (RETURN) key. You should see the outgoing packets on your own screen echoed back as they’re digipeated by the other station. 5) Start reducing TXDELAY by units of 5 each time, making sure the other station is still digipeating all of your UNPROTO packets.
Page 81: Packet Protocol Basics
Chapter 5 Packet Operation end of each line. However, if you press (RETURN), you’ll force a packet to be sent. You can get around this problem using the PASS (CTRL-V) character. You can include any character in a packet (including all special characters) by prefixing that character with the PASS character.
Page 82 Stations sending data are given more chances to send data and stations not sending data are given less chances. AEA has added the UPlink command to the DSP-232 for use with DAMA communications. Information on this command can be found at the end of this chapter.
Page 83: Packet Mail
Chapter 5 Packet Operation You can either enter the Transparent mode by typing TRANS at the command prompt after you connect, or by setting CONMODE to TRANS. Either way, once you enter the transparent mode any character you type will be sent automatically after the PACTIME setting.
Page 84 Chapter 5 Packet Operation 8Bitconv ON|OFF Default: OFF Mode: packet/ASCII Host: 8B The high-order bit is stripped in Converse Mode. The high-order bit isn’t stripped in Converse Mode. 8BITCONV permits packet and ASCII transmission of 8-bit data in Converse mode. When 8BITCONV is OFF, the high-order bit (bit 7) of characters received from the terminal is set to 0 (zero) before the characters are transmitted.
Page 85 Chapter 5 Packet Operation AEA products calculate the TAPR ACKTIME value based on the setting of HBAUD. The TAPR DEADTIME command is similar to AEA’s SLOTTIME command. ACRPack ON|OFF Default: ON Mode: packet Host: AK The SENDPAC character is added to packets sent in Converse mode. The SENDPAC character isn’t added to the packets.
Page 86 Chapter 5 Packet Operation The DSP uses AX.25 Level 2 Version 1.0 protocol. This command allows the selection of either the old (version 1) version of the AX.25 packet protocol or the current (version 2.0) protocol. Some implementations of version 1 of AX.25 protocol won’t properly digipeat Version 2.0 AX.25 packets.
Page 87 Chapter 5 Packet Operation Zero turns off the beacon (default). The BEACON command sets the conditions under which your beacon will be sent. A beacon frame contains the text that you’ve typed into the BTEXT message slot in a packet addressed to the UNPROTO address. When the argument EVERY is specified, a beacon packet is sent every “n”...
Page 88 Chapter 5 Packet Operation Three BELL characters (CTRL-G) are sent to your computer with the “***CONNECTED to” or “DISCONNECTED from (call)” message. Set CBELL ON if you want to be notified when someone connects to, or disconnects from, your station in packet or upon establishing a link in AMTOR or PACTOR.
Page 89 Chapter 5 Packet Operation Received CHSWITCH characters appear once (not doubled). Received CHSWITCH characters appear twice (doubled). Set CHDOUBLE ON when operating with multiple connections to tell the difference between CHSWITCH characters received from other stations and CHSWITCH characters generated by your DSP. In the following example CHDOUBLE is ON and CHSWITCH is set to “|”...
Page 90 Chapter 5 Packet Operation See CHDOUBLE and CHCALL for further information on the use of CHSWITCH. CMSg ON|OFF Default: OFF Mode: packet Host: CM The text message isn’t sent. The entered CTEXT message is sent as the first packet after a connection is established after a connect request from a another station.
Page 91 Chapter 5 Packet Operation The connection on the current channel is maintained. With CONPERM ON, the DSP is forced to maintain the current connection, even when the number of frames to the other station exceeds RETRY attempts for an acknowledgment. CONStamp ON|OFF Default: OFF Mode: packet, PACTOR...
Page 92 Chapter 5 Packet Operation CText text Default: empty Mode: packet Host: CT text Any combination of up to 120 characters, including spaces. CTEXT is the “answering machine” mesage sent when CMSG is ON. The message is sent only when another station connects to you.
Page 93 Chapter 5 Packet Operation Disconne Immediate Command Mode: packet Host: DI DISCONNE is an immediate command that initiates a disconnect command to the station to you’re connected to. If your disconnect command is successful, your monitor will display: *** DISCONNECTED: (call) Other commands can be entered while a disconnect is in progress.
Page 94 Chapter 5 Packet Operation Note: Do not attempt multiple packet connections while FRICK is active (1-250). In contrast to FRACK, which provides one retry timer per multi-connect channel, there is only one FRICK timer in the DSP. Each channel will try to use the same FRICK timer, causing interference to the operation of the other channels. Due to the sporadic nature of meteor scatter work, a Master/Slave mode can be enabled in the DSP with User BIT 18 (UBIT 18).
Page 95 Chapter 5 Packet Operation HBaud n Default: 1200 bauds Mode: packet Host: HB “n” values specifying the data rate in bauds from the DSP to the radio. HBAUD sets the radio on-the-air baud rate only in the packet operating mode and has no relationship to your computer terminal program’s baud rate.
Page 96 Chapter 5 Packet Operation In packet, ID is an immediate command that sends a special identification packet. The ID command allows you to send a final identification packet when you take your station off-the-air. (HID must also be set ON). The identification consists of a UI-frame, with its data field containing your MYALIAS (if it’s entered), MYCALL, and the word “digipeater”.
Page 97 Chapter 5 Packet Operation MBX lets you read or record useful or needed data without having to connect or log on to the source station(s). MBX filters the received packet data so that only packets from the selected station(s) entered above are shown, without headers or repeated frames.
Page 98 Chapter 5 Packet Operation MDCHECK is allows you to log on to your own Maildrop. After logging on, you can EDIT, LIST, READ, SEND or KILL Maildrop messages. To use MDCHECK, your DSP mustn’t be connected to or linked to any packet, AMTOR, or PACTOR stations. For monitoring purposes, local access of the Maildrop is considered a connection.
Page 99 The MODEM command determines what DSP Modem is selected for the DSP-232. The Modems available in EPROM are listed below. The DSP modems included in the DSP-232 can be shown with the DIRECT(ory) command and are listed below. bps 2125/2295...
Page 100 Chapter 5 Packet Operation 100 bps 2125/2295 bps 1615/1785 100 bps 1615/1785 200 bps 2110/2310 200 bps 1600/1800 200 bps 2125/2550 200 bps 1275/1700 200 bps 2125/2975 10: FSK 200 bps 1275/2125 11: FSK 300 bps 2110/2310 12: FSK 300 bps 1600/1800 13: FSK 1200 bps VHF 14: PACSAT 1200 bps BPSK...
Page 101 Chapter 5 Packet Operation Monitors all “I” and UI frames as before. Monitors only those “I” and UI frames with a PID byte of $F0. This is in response to NET/ROM, which sends frames that have a PID of $CF and that contain control characters. If you want to monitor every frame including those used by NET/ROM, you must turn MPROTO ON.
Page 102 Chapter 5 Packet Operation 3.YES_list 4. NONE Clear MTO with %, &, or OFF as arguments. MXmit ON|OFF Default: OFF Mode: packet Host: Mx Monitor outgoing packets in the same manner as received packets. Don’t monitor outgoing packets. With MXMIT ON, outgoing packets are monitored in the same manner as received packets. The monitoring of outgoing packets is subject to the settings of MONITOR, MCON, MFROM, MTO, MRPT and TRACE.
Page 103 Chapter 5 Packet Operation “Call” is the callsign of the node function of your DSP. Stations can connect to your MYGATE call, then issue a connect request from there. This way, your station takes responsibility for acknowledgements of the user’s packets. PAcket Immediate Command Mode: Command...
Page 104 Host: QH Modem number to be selected when the HF Packet mode is entered. QHPACKET sets the DSP-232 modem that will automatically be selected when the HF Packet mode is entered. To enter HF packet mode, type: HBAUD 300. See PACKET and MODEM commands for more infromation.
Page 105 Chapter 5 Packet Operation Set RELINK ON if you want the DSP to automatically try to reconnect to another packet station if the link fails. RESptime n Default: 0 (000 mS) Mode: packet Host: RP “n” 0 to 250 specifies 100 mS increments. RESPTIME adds a minimum delay before your DSP sends acknowledgment packets.
Page 106 Chapter 5 Packet Operation Note: If you need to use this command, you also need to have the black wire hooked up in the supplied radio cable. TRACe ON|OFF Default: OFF Mode: packet/Baudot/AMTOR/PACTOR Host: TR Trace function is activated. Trace function is disabled. Packet: TRACE activates the AX.25 protocol display.
Page 107 Default: 50 Host: Tr 0-100 adjusts how the DSP-232 manipulates amplitude of received signals on 1200 bps Packet. Twist receive (TWRcv) allows you to compensate for poor signal reception by adjusting the amplitude of the high tones. Entering values less than 50 allow you to lower the amplitude of the received signal’s high tone. Entering values greater than 50 allow you to increase the amplitude of received signal’s high tone.
Page 108 Chapter 5 Packet Operation USers n Default: 1 Mode: packet Host: UR “n” 0 to 10 specifies the number of active simultaneous connections that can be established with your DSP. USERS affects the way that incoming connect requests are handled. It doesn’t affect the number of outgoing connections you initiate.
Page 109 The modem and HBAUD rate selected in QHPacket are automatically selected. Use the VHF Command for immediate software control of the DSP-232’s modem selection and HBAUD data rate. This command makes changing between HF and VHF packet modems and data rates on each radio port easier.
Page 110: Chapter 6 - Global Positioning System Applications
GPS receiver. There are provisions for an external input to cause the sending of NMEA strings, such as from a radio control head button. The DSP-232 can even operate packet and GPS at the same time using the commercial mode.
Page 111: Hardware Configurations
This is known as a Stand Alone Tracking Device because others can track your motion without you having to run APRS or even have a computer. The firmware in the DSP-232 allows the TNC to parse the incoming location information from the GPS receiver (without the use of a computer running APRS which usually does the parsing) and then beacon the information over the ham bands.
Page 112: Setting Up The Dsp-232 For Gps Operation
APRS users can see your location and the weather at your location. The remotable polling features of the DSP-232 make it easy to set up a weather station in a remote location and receive the remote weather data via APRS at your house, office, or wherever.
Page 113: Connecting The Gps Receiver To The Dsp-232
The neat thing about the DSP-232 is that you can choose not one, but two NMEA strings to parse. You can, for instance, use Position-Only and Course/Speed. To program the second NMEA string for the DSP-232, type GNMEA2 $GPVTG and press ENTER.
Page 114 The cable that comes out the side of the APRS Adapter, labeled “GPS”, connects to the NMEA-0183 port on your GPS receiver. The cable is now correctly connected to your equipment. To set up the DSP-232 for HSP operation, follow these steps: September, 05...
Page 115: Dual Port Mode Set Up
APRS Dual Port Mode Set-up: To set up APRS for dual mode operation, follow these steps: Connect your DSP-232 to one of the COM ports on your computer. Get the TNC up and running following the directions in Chapter 2 of this manual.
Page 116: Schematic Diagram For The Aprs Adapter Cable
Schematic Diagram for the APRS Adapter Cable DSP-232/ULTIMETER II® Stand Alone Weather Station Set Up Connect the ULTIMETER II to the DSP-232 following the illustrations of Figure 6-4 and 6-5. Once the connections are made, follow the directions below to configure the TNC.
Page 117: Gps Specific Commands
Chapter 6 GPS Applications Now type Beacon E 60, then press ENTER. This will cause your DSP-232 to transmit its beacon text every five minutes. APRS must see the beacon text containing the position information and a weather symbol character before it will display your weather information.
Page 118 Numeral indicating an optional SSID The POLLCal can be any call sign other than one already programmed in the DSP-232. If programmed the same as one of the other callsigns, this feature will not work. When a packet is received addressed to this callsign, the DSP will begin parsing the programmed NMEA command or commands.
Page 119 ON - The DSP starts in CONVERSE mode after a restart or power-up. OFF - The DSP will power-up in command mode. This command allows the DSP-232 to power up in the CONVERSE mode if turned on. 6-10 September, 05...
Page 120 Chapter 6 GPS Applications September, 05...
Page 121: Chapter 7 - Maildrop Operation
Maildrop is in operation. Note: You needn’t have your computer on for your DSP-232’s Maildrop to function, but you must leave your radio on to allow other stations to access the Maildrop, or if you want to record the radio traffic the DSP hears.
Page 122: Expanding Your Maildrop
Expanding Your Maildrop The DSP-232 comes standard with 18K of battery backed Maildrop space. If you find that your MailDrop fills to quickly and you need more space, you can increase the Maildrop size to up to 256K. The chips necessary are available through AEA directly.
Page 123: Monitoring Your Maildrop
. . . but you can change it to your liking. For example: cmd:MTEXT You’ve reached KG6ZL’s mailbox. If you need help, enter H. MTExt was Welcome to my AEA DSP-232 Maildrop. Type H for help. MTExt now You’ve reached KG6ZL’s mailbox. If you need help, type H.>...
Page 124 Chapter 7 Maildrop Operation A(bort) This is handy if the user decides not to continue reading a long message or a list. The message, *** Done, followed by the Maildrop prompt will be sent after an “A” has been received. Although you can’t use the Abort command, you can use (CTRL-X) to do the same thing.
Page 125: Sending Mail
Chapter 7 Maildrop Operation J(log) Another command available only to the user, “J” will cause your Maildrop to send your DSP’s MHEARD list. (This command isn’t available to you as the console operator since you can simply enter MHEARD in the command mode to obtain the same list.) This is available in Packet mode only. K(ill) n “K n”...
Page 126: Sending Other Types Of Messages
Chapter 7 Maildrop Operation Type in a subject line (max. 27 characters), then press (RETURN). You’ll then be prompted with: Enter message, ^Z (CTRL-Z) or /EX to end Go ahead and enter your message; you can either have the DSP “wrap” your text as you reach the end of the line or press (RETURN) to go to the next line.
Page 127 Chapter 7 Maildrop Operation Assume that your Maildrop (MYMAIL) call is KB6IUX-1 and WO6P wants to connect to it. During his session with your Maildrop, he wants to list your Maildrop’s messages, see if there’s a message from you, read it if it exists, delete it after he’s done reading it, send a return message to you, then finally disconnect from your Maildrop.
Page 128: Message Numbers
Chapter 7 Maildrop Operation See you later, and all the best to you and Audrey. (CTRL-Z) Message stored as #7 [AEA DSP232] 16427 free (A,B,H,J,K,L,R,S,V,?) > *** DISCONNECTED: KB6IUX-1 The Console Operator’s Point of View Here is a transcription of the above example exactly as it would appear to you if you have MDMON ON. WO6P*>KB6IUX [C] *** CONNECTED to WO6P (Maildrop) Type H for help.
Page 129: Forwarding And Reverse-Forwarding
Chapter 7 Maildrop Operation the number immediately following the value you entered. For example, if you enter: LASTMSG 100, the next message entered into your Maildrop will be assigned number 101. Forwarding and Reverse-Forwarding Forwarding allows your local full-service Bulletin Board System (BBS) to automatically connect to your Maildrop to leave mail.
Page 130: Amtor Maildrop
Chapter 7 Maildrop Operation Note: If you want a message to be deleted from your Maildrop after it’s been reverse-forwarded, leave KILONFWD ON; if you want to keep the message after its been forwarded, leave KILONFWD OFF. With KILONFWD OFF, after the message has been forwarded the message’s flag will change from “F” to “Y” to show that it has been read and sent.
Page 131: Command Definitions For Amtor
Chapter 7 Maildrop Operation ...and the default user command list is: A, B, H, J, K, L, R, S, V, ? The user can end a command with either +? or a (RETURN). TMPROMPT is the AMTOR Maildrop message prompt sent to a station by your Maildrop. The default prompt is: GA subj/GA msg, ’/EX’...
Page 132: Maildrop Commands
Chapter 7 Maildrop Operation Turn TMAIL ON to allow remote stations to access your Maildrop in ARQ PACTOR. Turn TMAIL OFF to have normal ARQ QSOs with other stations in the PACTOR mode. The Maildrop commands have the same effect as the ones listed earlier; only the differences from those are listed below when used in the PACTOR mode.
Page 133 Chapter 7 Maildrop Operation This is the callsign of your local or HOMEBBS that you’ll use for reverse-forwarding messages. You must make special arrangements with the system operator of this BBS to set you up for reverse-forwarding. The SSID isn’t compared when matching HOMEBBS to the source callsign of an incoming packet.
Page 134 Chapter 7 Maildrop Operation MDMON permits you to monitor MailDrop activity on your AMTOR, PACTOR or packet Maildrop, showing you both sides of the QSO. (Packet headers aren’t shown while a caller is connected.) When no one is connected to your Maildrop, channel activity is monitored according to the setting in MONITOR.
Page 135 Chapter 7 Maildrop Operation MMSG enables or disables automatic transmission of the MTEXT message when your AMTOR, PACTOR or packet Maildrop links with another station. MTExt text Default: See sample Mode: AMTOR, PACTOR and packet Maildrop Host: Mt text Any printable message up to a maximum of 120 characters. (Spaces count as characters.) MTEXT is the Maildrop’s “answering machine message”...
Page 136 Chapter 7 Maildrop Operation MYMail call[-n] Default: none Mode: packet/Maildrop Host: Ma call The callsign you want to use for the Maildrop. “n” Numeral indicating an optional SubStation ID (SSID) or extension. “call” may have an optional SSID, and must not be the same exact callsign and SSID as MYCALL. If you don’t set MYMAIL, the Maildrop will use the same callsign and SSID as you entered in MYCALL.
Page 137 Chapter 7 Maildrop Operation TMPrompt text Default: (see text) Mode: AMTOR/Maildrop Host: Tp text Any combination of characters and spaces up to a maximum of 80 bytes. TMPROMPT is the command line sent to a calling station by your AMTOR Maildrop in response to a Send message command.
Page 138 Chapter 7 Maildrop Operation 7-18 September, 05...
Page 139: Chapter 8 - Ascii And Baudot Operation
Chapter 8 ASCII and Baudot Operation Chapter 8 ASCII and BAUDOT Operation Overview ASCII, the American Standard Code for Information Interchange (pronounced as-kee), has been around for nearly 30 years. ASCII is a 7-bit code and was designed to overcome the limitations of the Baudot character set by including both upper and lowercase letters, numbers, all punctuation characters as well as many computer control codes.
Page 140: Setting Up For Bausdot
Chapter 8 ASCII and Baudot Operation The following parameters are the most common settings for HF ASCII operation. Check the parameters and make sure they are set as follows*: ABAUD RXREV TXREV WIDESHFT *These are default values. Set your HF radio to LSB unless you connected your DSP to your radio's direct FSK keying lines. If you have, then you should select the FSK operating mode on your radio.
Page 141: Going On The Air
Chapter 8 ASCII and Baudot Operation 4. Tune your receiver between 14.08 and 14.10 MHz (or elsewhere where there’s Baudot or ASCII activity). 5. Slowly vary the tuning control on your receiver while glancing at the DSP’s tuning indicator. Look for the LED pattern below and adjust the frequency control accordingly.
Page 142: Answering A Cq
Chapter 8 ASCII and Baudot Operation Answering a CQ Let’s assume you hear KG6ZL calling CQ. To answer him: 1. Enter X to key your transmitter. 2. Send a line of RYs as a tuning signal for the distant station, then a standard reply message: RYRYRYRYRYRYRYRYRYRY (RETURN) KG6ZL KG6ZL KG6ZL DE (YOURCALL) (YOURCALL) (YOURCALL) (RETURN) KG6ZL KG6ZL KG6ZL DE (YOURCALL) (YOURCALL) (YOURCALL) (RETURN)
Page 143 Chapter 8 ASCII and Baudot Operation WRU—(W)ho a(R)e yo(u)?—allows you to request the identity of the station you're conversing with by typing (CTRL+E). This causes the DSP to send a FIGS-D request to the other station. For this reason, you should set your own AAB message to DE (your callsign).
Page 144: Baudot And Ascii Commands
Chapter 8 ASCII and Baudot Operation Changing Speed Assume you’ve been receiving at 45 bauds and want to increase the baud rate in steps. From the Command mode, enter: RB U. The DSP will respond with: RBaud was 45 RBaud now 50 RBAUD sets the Baudot RTTY speed.
Page 145 Chapter 8 ASCII and Baudot Operation AAb text Default: empty Mode: Baudot, ASCII, AMTOR, PACTOR Host: AU text Any combination of charcters (maximum: 24). Use AAB to enter acknowledgment text for Baudot, ASCII, AMTOR and PACTOR. AAB sends automatic confirmation in Baudot, ASCII, AMTOR and PACTOR in response to a distant station’s WRU request—it’s like an answering machine message you’ve set up for incoming calls.
Page 146 Chapter 8 ASCII and Baudot Operation Use this option when you’re typing into the transmit buffer and don’t want to be bothered worrying about line length. You shouldn’t use this option when retransmitting text received from another station; ARRL bulletins, for example.
Page 147 Chapter 8 ASCII and Baudot Operation Baudot RTTY operation is very common around the world and is the basis of the TELEX network and most radio press, weather and point-to-point message services. The Baudot/Murray and ITA #2 character sets don’t contain lower-case or the special punctuation and control characters found in ASCII.
Page 148 Chapter 8 ASCII and Baudot Operation In response to requests from European customers, the “national” ITA#2 characters unassigned in the US have been made available for both transmission and reception. FIGS-F, FIGS-G and FIGS-H have been assigned characters according to standard use and are shown below. Note that some national alphabets use these characters for accented letters not appearing in English.
Page 149 Chapter 8 ASCII and Baudot Operation The extensions used in Morse reception are shown below: English Morse ASCII Pronunciation $71 - q .-.- $7E - ~ CH (Morse only) ---. $60 - ’ ..-- $7D - ] SHCH --.- ---- $7B - { In Baudot and AMTOR, Russian transmitters use a third register to transmit Cyrillic characters in addition to the LTRS and FIGS.
Page 150 Chapter 8 ASCII and Baudot Operation ’ E (RTTY only) ’ CODE 4: Katakana Katakana is the phonetic character set used in Japan for spelling out words of foreign (to Japan) origin. The Japanese also use Katakana for Morse and some computer communication. There are about 50 Katakana characters. CODE 4 translates the Katakana Morse code into an 8-bit extended version of ASCII.
Page 151 To display your text on your computer screen exactly as you’re typing it in or while sending it from a disk file, leave EAS OFF. To see the actual data being sent from your DSP-232 to your radio and transmitted on the air, set EAS ON.
Page 152 Chapter 8 ASCII and Baudot Operation “n” Is the hex representation ($01-$7F) of the character that causes the AAB string to be sent in the middle of transmitted text. If you want to send your own AAB string for identification during a transmission, simply enter the HEREIS character.
Page 153 The MODEM command determines what DSP Modem is selected for the DSP-232. The Modems available in EPROM are listed below. The DSP modems included in the DSP-232 can be shown with the DIRECT(ory) command and are listed below. bps 2125/2295...
Page 154 Host: QR Modem number to be selected when the ASCII or Baudot RTTY modes are entered. QRTTY sets the DSP-232 modem that will automatically be selected when the Baudot or ASCII RTTY modes are entered. See the BAUDOT, ASCII and MODEM commands for more information.
Page 155 Chapter 8 ASCII and Baudot Operation The RECEIVE command allows you to insert a character in your typed text that will cause the DSP to (RETURN) to receive after all the text has been transmitted. RFRame ON|OFF Default: OFF Mode: Baudot and ASCII RTTY Host: RG Print received Baudot and ASCII characters regardless of errors.
Page 156 Chapter 8 ASCII and Baudot Operation TXRev ON|OFF Default: OFF Mode: Baudot/ASCII/AMTOR Host: TX Transmit data polarity is normal. Transmit data polarity is reversed (mark-space reversal). Use TXREV to reverse the mark and space polarities in your transmitted AFSK and FSK signals. In some cases, the station you’re working may be receiving inverted data although it’s transmitting in the correct polarity.
Page 157 Chapter 8 ASCII and Baudot Operation With WORDOUT OFF, each character you type is sent to the radio just as you typed it, without any delay. Also, the backspace character is transmitted in Baudot, ASCII, AMTOR and PACTOR modes. With WORDOUT ON, pressing the backspace key cancels out the preceding character and neither are transmitted.
Page 159 Chapter 8 ASCII and Baudot Operation September, 05...
Page 160: Chapter 9 - Amtor Operation
Chapter 9 AMTOR Operation Chapter 9 AMTOR Operation Overview The DSP provides AMTOR operation in accordance with FCC Part 97.69 and CCIR Recommendations 476-2/476- 3 and 625 for mode A (ARQ) and mode B (FEC) modes. AMTOR is an adaptation of the SITOR system used in high-seas ship telex, which provides error detection and correction.
Page 161: Receiving Amtor
Chapter 9 AMTOR Operation (If you’re using an AEA program, follow the instructions in the program’s manual to set up and use AMTOR.) AMTOR is a bit more complex than Baudot or ASCII operation. AMTOR operating modes require SELCALL (SELective CALL) codes to be entered before you can operate in this mode. The SELCALL is a unique character sequence, consisting of four alphabetic characters, that’s derived from your callsign;...
Page 162: Going On The Air
5. When you find a station, use the THRESHLD command to adjust the threshold so that the DCD light glows when a tuned AMTOR station is being received, but goes out when no signal is received. Alternatively, you can use the AUTOTHR (automatic threshold) command to have the DSP-232 automatically adjust the threshold for you.
Page 163: Answering Another Station's Cq
Chapter 9 AMTOR Operation 1. Enter FEC. You’re in the Converse mode and your transmitter is now keyed, so anything you type will be sent. 2. Type in your CQ message. Make sure you include your callsign, and four- and seven-character SELCALL. An example is shown below: CQ CQ CQ DE KB6IUX -- KIUX -- KBDIUXX +? (CTRL-D) By tacking on a CTRL+D at the end of your CQ (or other text), it puts your radio into AMTOR STBY...
Page 164: Killing The Link
Chapter 9 AMTOR Operation Killing the Link If, while the other station has control of the link, you have to end the conversation immediately, you can do so by entering (CTRL-C) R (RETURN). This will put you into AMtor STBY RCVE mode. If there are characters left in the transmit buffer, they won’t be sent.
Page 165 Chapter 9 AMTOR Operation EAS—Echo As Sent—is used in ARQ AMTOR. With EAS ON, you’ll see characters echoed to your screen only after the other station has validated them; the characters appear on your screen three at a time. This allows you to observe the progress of your transmission.
Page 166: Maildrop Operation
Maildrop Operation One of the unique features of the DSP-232 is that it allows AMTOR as well as Packet and PACTOR access to its MailDrop; messages can be dropped off and picked up in any combination of these modes as long as your mode (Packet, PACTOR, RTTY, etc.) matches the calling station’s.
Page 167: Amtor Commands
Chapter 9 AMTOR Operation Opmode was AMtor Monitor AMTOR traffic AList Phase Opmode now AList while other stations are connected Send CQ or a message Enter your CQ text or send a message TX+traffic/FEC CQ CQ CQ, while not connected, then follow it by a DE (yourcall (CTRL-D).
Page 168 Chapter 9 AMTOR Operation answering machine message you’ve set up for incoming calls. Set WRU ON or CUSTOM to $0200 to activate your Auto-AnswerBack message. To record your AAB message, enter “AAB (24-character text)”. Example: cmd: AAB WF7A - VASHON ISLAND, WA ...and yes, spaces between words count as characters.
Page 169 Chapter 9 AMTOR Operation You can usually monitor a contact between two linked stations using the ARQ Listen mode (also called Mode L). This mode may need a few seconds to phase or acquire synchronization with the master station, depending on operating conditions such as interference.
Page 170 Chapter 9 AMTOR Operation Mode: AMTOR ARQ Host: Ao “n” 1 to 5, specifying a relative tolerance for bit boundary jitter. ARQTOL controls the tolerance for received bit boundary jitter in the AMTOR ARQ mode. “n” is a number from 1 (tight tolerance) to 5 (loose tolerance).
Page 171 Chapter 9 AMTOR Operation SELFEC always if ARXT if ARXT Monitor SELFEC if SRXALL if ARXT & SRX if ARXT & SRX PTCONN always always Monitor PACTOR always Note: When automatically switching from PACTOR to AMTOR and back again, the modem isn’t changed.
Page 172 Chapter 9 AMTOR Operation Morse ---- -.-.. .-..- --..- ñ --.-- In response to requests from European customers, the “national” ITA#2 characters unassigned in the US have been made available for both transmission and reception. FIGS-F, FIGS-G and FIGS-H have been assigned characters according to standard use and are shown below.
Page 173 Chapter 9 AMTOR Operation useful. CODE 2: Cyrillic This code causes a translation to an artificially extended ASCII so that all received characters are converted to single ASCII characters. The character set used prior to July 1991 was arbitrary, but we have now changed the character set to one which we believe is used in the former USSR.
Page 174 Chapter 9 AMTOR Operation CH (Morse only) SHCH ’ E (RTTY only) ’ CODE 4: Katakana Katakana is the phonetic character set used in Japan for spelling out words of foreign (to Japan) origin. The Japanese also use Katakana for Morse and some computer communication. There are about 50 Katakana characters. CODE 4 translates the Katakana Morse code into an 8-bit extended version of ASCII.
Page 175 To display your text on your computer screen exactly as you’re typing it in or while sending it from a disk file, leave EAS OFF. To see the actual data being sent from your DSP-232 to your radio and transmitted on the air, set EAS ON.
Page 176 Chapter 9 AMTOR Operation “n” is a hex value $00-7F, default $5F (underscore). This is the character that the DSP displays when it receives a corrupted or bad character in Morse, ARQ, FEC, PACTOR, NAVTEX or TDM. You may want to set this character to $2A (asterisk), $07 (bell), $20 (space) or $00 (null)—whichever works best for you.
Page 177 Chapter 9 AMTOR Operation Lock Immediate Command Mode: Morse/Baudot/AMTOR Host: LO AMTOR and Baudot: LOCK is used to force a LETTERS shift in the received data. This can be helpful if noise has garbled the LTRS character causing FIGURES to be displayed. Morse: LOCK instructs the DSP to lock its timing circuits to the current measured speed of a received Morse signal;...
Page 178 Chapter 9 AMTOR Operation When DAYTIME has been set, entries in the Heard log are time stamped. With DAYSTAMP ON the date is also shown. An example of the MHEARD display is shown below: DAYSTAMP ON DAYSTAMP OFF 05-Nov-95 21:42:27 KG6ZL 21:42:27 KG6ZL 05-Nov-95 21:42:24 KB6IUX* 21:42:24 KB6IUX*...
Page 179 The MODEM command determines what DSP Modem is selected for the DSP-232. The Modems available in EPROM are listed below. The DSP modems included in the DSP-232 can be shown with the DIRECT(ory) command and are listed below. bps 2125/2295...
Page 180 Chapter 9 AMTOR Operation MYALTcal aaaa Default: none Mode: AMTOR Host: MK aaaa Your alternate SELective CALling code (SELCALL) Use the MYALTCAL command to specify your alternate SELCALL which, under certain conditions, may be convenient or necessary. (You can enter an additional SELCALL code not related to your callsign.) The alternate SELCALL can be any four alphabetical characters, or can be numeric strings of either four or five numbers.
Page 181 Modem number to be selected when the AMTOR mode is entered. QTOR sets the DSP-232 modem that will automatically be selected when the AMTOR mode is entered. See the AMTOR (in this chapter) and MODEM (in Chapter 4) Terminal Interfacing for more information.
Page 182 Chapter 9 AMTOR Operation RXREV operates only at RBAUD and ABAUD speeds up to 150 baud. SELfec aaaa[aaa] Immediate Command Mode: AMTOR FEC Host: SE aaaa Specifies the distant station’s SELCALL. SELFEC starts a SELective FEC (mode Bs) transmission to a specific station when you enter that station’s SELCALL (SELective CALLing) code.
Page 183 Chapter 9 AMTOR Operation See the Chapter 7: Maildrop Operation for more information about TMPROMPT. TRACe ON|OFF Default: OFF Mode: packet/Baudot/AMTOR/PACTOR Host: TR Trace function is disabled. Trace function is activated. Packet: TRACE activates the AX.25 protocol display. With TRACE ON, all received frames are displayed in their entirety, including all header information.
Page 184 Chapter 9 AMTOR Operation Inputted characters are sent directly to the transmitter. Inputted characters are held in the transmit buffer until a space, (RETURN), LF, (TAB), RECEIVE, CWID, ENQ or +? character(s) is typed. Use WORDOUT to choose whether or not you can edit while entering text for transmission. With WORDOUT ON, each character you type is held in a buffer until you enter a space, (RETURN), LF, ENQ character ($05 [CTRL-E]) or the +?.
Page 186 Chapter 9 AMTOR Operation September, 05...
Page 187: Chapter 10 - Morse Operation
Chapter 10 Morse Operation Chapter 10 Morse Operation Overview The DSP will both send and receive International Morse code at much higher speeds than hand-sent code. As a rule, though, no computer can “copy” code as well as the human ear and the DSP is no exception. A strong signal and a good “fist”...
Page 188: Tuning In Morse Stations
Chapter 10 Morse Operation Opmode now MOrse cmd: Look at your DSPs front panel to verify that you’re in the Morse mode—the ‘C’ (for CW) symbol will glow in the Mode window. Next, you can choose which modem you want to use using the MODEM command, followed by the specific modem number.
Page 189: Operating Tips
Chapter 10 Morse Operation 3. Wait a few seconds to see if you get a response. If not, repeat the above procedure. Operating Tips Type Ahead Buffer Sometimes it’s convenient, or easier for you, to type a response to the other operator’s message while you’re receiving it.
Page 190 Chapter 10 Morse Operation ATxrtty n Default: 0 Mode: Morse, Baudot and ASCII Host: At “n” 0 to 250, signifying the length of time (in units of 100 mS) to delay before sending text. ATXRTTY allows Morse, Baudot or ASCII characters to be transmitted automatically whenever they’re typed and the TNC is in the Converse mode.
Page 191 Chapter 10 Morse Operation Baudot ITA #2 U.S. CODE 0 CODE 1 Character FIGS-F FIGS-G & FIGS-H 3rd-Q CODE 1: US Teleprinter In Morse, this has no effect—the DSP will use the International Morse Code and not the American Morse code. In Baudot and AMTOR, the US teleprinter character set shown below is used.
Page 192 Chapter 10 Morse Operation The extensions used in Morse reception are shown below: English Morse ASCII Pronunciation $71 - q .-.- $7E - ~ CH (Morse only) ---. $60 - ’ ..-- $7D - ] SHCH --.- $7B - { ---- In Baudot and AMTOR, Russian transmitters use a third register to transmit Cyrillic characters in addition to the LTRS and FIGS.
Page 193 Chapter 10 Morse Operation CH (Morse only) SHCH ’ E (RTTY only) ’ CODE 4: Katakana Katakana is the phonetic character set used in Japan for spelling out words of foreign (to Japan) origin. The Japanese also use Katakana for Morse and some computer communication. There are about 50 Katakana characters. CODE 4 translates the Katakana Morse code into an 8-bit extended version of ASCII.
Page 194 To display your text on your computer screen exactly as you’re typing it in or while sending it from a disk file, leave EAS OFF. To see the actual data being sent from your DSP-232 to your radio and transmitted on the air, set EAS ON.
Page 195 The MODEM command determines what DSP Modem is selected for the DSP-232. The Modems available in EPROM are listed below. The DSP modems included in the DSP-232 can be shown with the DIRECT(ory) command and are listed below. bps 2125/2295...
Page 196 Modem number to be selected when the MORSE mode is entered. QMORSE sets the DSP-232 modem that will automatically ne selected when the Morse mode is entered. See the MORSE (this chapter) and MODEM (Chapter 4) commands for more information.
Page 197 Chapter 10 Morse Operation With WORDOUT OFF, each character you type is sent to the radio just as you typed it, without any delay. Also, the backspace character is transmitted in Baudot, ASCII, AMTOR and PACTOR modes. With WORDOUT ON, pressing the backspace key cancels out the preceding character and neither are transmitted.
Page 199 Chapter 10 Morse Operation September, 05 10-1...
Page 200: Chapter 11 - Siam And Navtex Operation
SIAM and NAVTEX Operation Chapter 11 SIAM and NAVTEX Operation NOTE: The SIAM function is not operatioal in the DSP-232! Overview As you tune across the HF bands you’ll find an ever increasing number of digital signals. These signals range from the simple Murray Baudot code, to ASCII, and even packetized data.
Page 201: Copying Encoded Rtty Transmissions
Chapter 11 SIAM and NAVTEX Operation When preparing to decode a digital signal, the only decision you need to make before using SIAM is whether the signal is narrow or wide shift. Inside the Amateur bands, most digital signals are at 170 or 200 Hz shift so set WIDESHFT OFF.
Page 202: About Navtex
Chapter 11 SIAM and NAVTEX Operation By varying BITINV from 0 through 31, you’ll test all the different bit-inversion possibilities that may be used to encode a Baudot signal. If only simple bit-inversion is being used, one of the settings of BITINV should cause the transmission to print in plain text.
Page 203: Siam And Navtex Commands
Chapter 11 SIAM and NAVTEX Operation Pilot Service Messages DECCA System Information LORAN-C System Information Omega Systems Messages SATNAV System Messages K-Z) Reserved for future use NAVMSG is used to selectively monitor or reject any of the NAVTEX message classes shown above. The exception to this is that message classes A, B and D can’t be excluded and will always be copied if the transmitting station is enabled by NAVSTN.
Page 204 Chapter 11 SIAM and NAVTEX Operation ARQ-E is similar to 1-channel TDM except that the 7-bit code is different. Like TDM, most ARQ-E stations send idle signals for long periods of time. The DSP can only phase on ARQ-E signals that are idling so this isn’t a problem.
Page 205 Host: QS Modem number to be selected when the SIGNAL mode is entered. QSIGNAL sets the DSP-232 modem that will automatically be selected when the SIGNAL Identification mode is entered. See the SIGNAL (this chapter) and MODEM (Chapter 4) commands for more infromation.
Page 206 Chapter 11 SIAM and NAVTEX Operation To use SAMPLE, set ACRDISP to a non-zero value such as 77. This will break up the recorded disk file into lines. Tune in the signal, set WIDESHFT ON or OFF as needed, and get the transmission rate from the SIGNAL command.
Page 208 Chapter 11 SIAM and NAVTEX Operation September, 05 11-1...
Page 209: Chapter 12 - Pactor Operation
Chapter 12 PACTOR Operation Chapter 12 PACTOR Operation Overview PACTOR is a relatively new amateur data communications mode; it was developed in Germany by Hans-Peter Helfert, DL6MAA, and Ulrich Strate, DF4KV. PACTOR combines some of the best features of both AMTOR and Packet as well as providing a few new features which we’ll cover later in this chapter.
Page 210: Setting Up
Chapter 12 PACTOR Operation Before proceeding with the rest of this section, review the following commands that are directly applicable to the PACTOR mode: AAB, ACHG, ARQTMO, ARXTOR, CBELL, CONSTAMP, EAS, GUSERS, MHEARD, MID, MYCALL, MYPTCALL, OVER, PT200, PTCONN, PTHUFF, PTLIST, PTOVER, PTROUND, PTSEND, TMAIL, UCMD, UNPROTO, and WORDOUT.
Page 211: Going On The Air
Chapter 12 PACTOR Operation 2. Turn any IF-shift and passband-tuning controls to their center or “off” position. 3. Adjust the volume to a comfortable listening level. 4. Enter the command PTLIST to monitor both linked and unlinked (unproto) PACTOR transmissions. The PHASE and MODE L lights on the DSPs front panel should glow;...
Page 212: Calling Cq
Chapter 12 PACTOR Operation With your DSP, it’s possible to listen to, or join, a roundtable discussion where two or more hams get together on the same frequency to chat. To listen to stations that aren’t linked, enter PTL. Note: Because PACTOR-Listen mode doesn’t provide for error-correction, you may miss copying some frames.
Page 213: Ending A Qso
MailDrop Operation One of the unique features of the DSP-232 is that it allows PACTOR as well as Packet and AMTOR access to its MailDrop; messages can be dropped off and picked up in any combination of these modes as long as your mode (Pactor, PACTOR, RTTY, etc.) matches the calling station’s.
Page 214: Operating Tips And Options
Chapter 12 PACTOR Operation The PACTOR MailDrop has been designed with a “Watchdog” safety feature so that it can operate independently with little attention. If a remote station is linked with your PACTOR MailDrop and no traffic is passed for 5 minutes, the link will drop and your transmitter will shut off.
Page 215 Chapter 12 PACTOR Operation If the changeover time from transmit to receive in your radio set-up is too long, the ack signal from the distant station will arrive before your radio has switched back to receive. However, if the transmitting station is further away, the transmission time over the propagation path will delay the arrival of the signal until after your radio has switched to receive.
Page 216: Pactor Commands
Chapter 12 PACTOR Operation To end a QSO while the (CTRL+C) ACHG other station has the link (CTRL+D) or (CTRL+C) ACHG (CTRL+C) D *** DISCONNECTED: (callsign) (RETURN) (CTRL+C) To grab the link away from TX+Idle/ARQ ACHG the other station (and RETURN interject text) before he (text)
Page 217 Chapter 12 PACTOR Operation text Any combination of charcters (maximum: 24). Use AAB to enter acknowledgment text for Baudot, ASCII, AMTOR and PACTOR. AAB sends automatic confirmation in Baudot, ASCII, AMTOR and PACTOR in response to a distant station’s WRU request—it’s like an answering machine message you’ve set up for incoming calls.
Page 218 Chapter 12 PACTOR Operation “n” 0 to 250 specifies the number of seconds to send an ARQ SELCALL before automatic transmitter shutdown. ARQTMO sets the length of time during which your ARQ call will be sent, shutting down the transmitter automatically after exceeding its value.
Page 219 Chapter 12 PACTOR Operation BBSmsgs ON|OFF Default: OFF Mode: packet, PACTOR Host: BB The DSPs status messages work as before (default). Makes the DSP status messages look like the TAPR-style output. With BBSMSGS ON, some of the status messages change or are suppressed which may improve operation of the DSP with some BBS software.
Page 220 To display your text on your computer screen exactly as you’re typing it in or while sending it from a disk file, leave EAS OFF. To see the actual data being sent from your DSP-232 to your radio and transmitted on the air, set EAS ON.
Page 221 Chapter 12 PACTOR Operation to $2A (asterisk), $07 (bell), $20 (space) or $00 (null)—whichever works best for you. ERRCHAR ON or ER Y restores the default. GUSERS n Default: 0 Mode: packet, AMTOR, PACTOR Host: GU “n” 0 to 3 specifies the maximum number of users allowed to use your node. GUSERS allows up to n number of stations to connect to your MYGATE call.
Page 222 Chapter 12 PACTOR Operation Text before the first slash is sent to the other station as the Subject prompt; text after the slash is sent as the message text prompt. If there’s no slash in the text, the subject prompt is “Subject:” and the text prompt message is Enter message, ^Z (CTRL-Z) or /EX to end.
Page 223 The MODEM command determines what DSP Modem is selected for the DSP-232. The Modems available in EPROM are listed below. The DSP modems included in the DSP-232 can be shown with the DIRECT(ory) command and are listed below. bps 2125/2295...
Page 224 Chapter 12 PACTOR Operation Two or more stations can’t use the same call and SSID on the air at the same time. Use a different SSID this is the case. MYCALL must be entered for you to use the PACTOR Maildrop; the callsign is used for message routing and identification.
Page 225 Chapter 12 PACTOR Operation In AMTOR ARQ, this command inserts “+?” into the data stream being sent. With EAS ON, the “+?” is echoed to the terminal. PACTor Immediate Command Mode: PACTOR Host: Pt PACTOR is an immediate command that switches the DSP into the PACTOR mode of operation. PACTOR is a mode of data communication that combines some of the features of both AMTOR and packet.
Page 226 Chapter 12 PACTOR Operation PTCONN starts the PACTOR connect protocol. To start a PACTOR connect, type PTC followed by the other station’s callsign. Example: cmd: PTC WF7A As soon as (RETURN) is pressed, the DSP will key your transmitter on and off with the PACTOR connect sequence.
Page 227 Default: 5 (Modem 5) Mode: PACTOR Host: QP Modem number to be selected when PACTOR is entered. QPTOR sets the DSP-232 modem that will automatically be selected when the PACTOR mode is entered. Rcve Immediate Command Mode: Baudot/ASCII/AMTOR/PACTOR/ Morse Host: RC RCVE is used in Morse, Baudot, ASCII, AMTOR, and PACTOR modes to switch your DSP from transmit to receive.
Page 228 Chapter 12 PACTOR Operation “n” 0 to $7F (0 to 127 decimal) specifies an ASCII character code. Parameter “n” is the numeric ASCII code for the character you’ll use when you want the DSP to (RETURN) to receive. The RECEIVE command allows you to insert a character in your typed text that will cause the DSP to (RETURN) to receive after all the text has been transmitted.
Page 229 Chapter 12 PACTOR Operation WOrdout ON|OFF Default: OFF Mode: Baudot, ASCII, AMTOR, PACTOR and Morse Host: WO Inputted characters are sent directly to the transmitter. Inputted characters are held in the transmit buffer until a space, (RETURN), LF, (TAB), RECEIVE, CWID, ENQ or +? character(s) is typed.
Page 231 Chapter 12 PACTOR Operation September, 05 12-1...
Page 232: Chapter 13 - Troubleshooting
♦ Software incongruities Because there are scores of different software and hardware configurations available to use with the DSP-232, it’s impossible to list all the solutions to the software/hardware-related problems you may encounter, but this Troubleshooting section should help you out of common problem situations.
Page 233: The Dsp-232
Cable from DSP to Computer If you use the cable supplied with the DSP-232, you should not have a problem. If you use a different cable for some reason, make sure the cable is not fully loaded (all pins being used). Only pins 1-3 and 5-8 are used. Refer to Chapter 2 of this manual for an explaination of the pin assignments.
Page 234: Radio
Chapter 13 Troubleshooting your radio. Remember, if there is a discrepancy between your radio’s mike (or accessory port) connections and the ones listed in Appendix A, call AEA or your radio’s manufacturer for assistance. Radio If the DSP passes the loop-back test (Chapter 3 - Radio Installation) and you’re absolutely sure that you wired the mike connector correctly , then you probably have your radio set in the wrong mode for operation, or if it’s an older model radio, you need to set the DSPs timing parameters to compensate for slow key-up times and such.
Page 235: General Error Messages
Chapter 13 Troubleshooting Lynnwood, WA 98036-0918 USA We’ll need your street address for UPS return—be sure to use it. UPS Service (Brown Label) takes 5-6 days to reach us, Blue takes 2-3 days. Red is an overnight service and is expensive.
Page 236: Packet Error Messages
Chapter 13 Troubleshooting ?need ALL/NONE/YES/NO This message indicates you have forgotten the ALL, NONE, YES or NO arguments in the CFROM, DFROM or MFROM commands. *** Transmit data remaining You’ll get this if the DSP is commanded back to receive (using the RCVE command) while it still has data in the transmit buffer waiting to be sent.
Page 237 Chapter 13 Troubleshooting You typed enough data to fill the outgoing buffer in either the too many packets outstanding Converse or Transparent mode. You can’t re-enter Converse or Transparent mode until some of the packets have been sent. You’ve set the BEACON interval timer to less than 90 (15 WARNING: Beacon too often minutes) which is too often for busy channels.
Page 238: Maildrop Error Messages
*** Not your message. addressed to another station. DSP-232 Status and Error Messages From time to time, the DSP will generate messages informing you of its status. Error messages will also be generated if the DSP didn’t understand a command you’ve entered. This section describes the DSP’s messages and the circumstances which cause them to appear.
Page 239 Chapter 13 Troubleshooting This message indicates a program error has occurred. Write down any information accompanying this message and call AEA’s Technical Support department. If possible, print a DISP Z parameter listing. ROM error, checksum $xxxx This message indicates there has been a failure in the DSP. If this message appears, call AEA’s Technical Support department.
Page 240 Chapter 13 Troubleshooting September, 05 13-9...
Page 241: Out Of The Box Problems
If it’s the DSP that’s blowing fuses, call AEA for assistance. Computer to DSP-232 Problems The majority of these problems are directly attributable to correctly addressed serial (COM) ports; incorrect wiring or poor solder joints. Make sure you use only pins 1-3 and 8-8 in the DB-9 connector. Also, perform a check of the cable to make absolutely sure it’s not a open circuit that’s causing a problem.
Page 242: Radio To Dsp-232 Problems
Troubleshooting 13-10 Radio to DSP-232 Problems The majority of these problems are directly attributable to incorrect wiring or poor solder joints. Perform a continuity check of the cable to make absolutely sure it’s not a open circuit that’s causing a problem.
Page 243: Ascii/Baudot Problems
Chapter 13 Troubleshooting 13-11 Unlock by entering MO in the Poor copy (numerous errors during Garbled text—lots of “E”s and “T”s. DSP not synchronized or locked at reception.) wrong speed. Command mode. Poor keying timing. Other operator is using manual or “bug”-sent Morse;...
Page 244: Siam Problems
Chapter 13 Troubleshooting 13-12 RXREV not set to match signal. Change RXREV. Garbled copy. Wrong baud rate. Change RBAUD and/or ABAUD rate. Wrong mode. Choose correct mode. (Use SIAM for assistance.) Try different values of BITINV. Encrypted signals being received. Apparently unable to match baud XBAUD isn’t set to zero.
Page 245: Maildrop Problems
Chapter 13 Troubleshooting 13-13 DSP repeatedly displays UNKNOWN Signal is encrypted or is a Tune to a station that uses synchronous data transmission—that asynchronous data transmission. MODE during its analysis. is, it has no start/stop bits or recognizable repeating pattern. Signal is packet radio.
Page 246: Packet Problems
Chapter 13 Troubleshooting 13-14 Packet Problems Problem Symptom Cause Test/Solution Unable to transmit. You copy stations on the frequency Threshold control mis-adjusted. Adjust Threshold control so that the you’re operating on, but when you DCD indicator is on when other attempt to connect your radio stations are sending and is off when doesn’t transmit or nothing appears...
Page 247 Chapter 13 Troubleshooting 13-15 You are unable to connect to others Your radio seems to transmit and AFSK level not correctly adjusted. Adjust this control following the receive normally , that is, it procedures in Chapter 3 where FM transmits for about 1/2 second every and SSB calibration procedure is 5 to 10 seconds.
Page 248 Chapter 13 Troubleshooting 13-16 HBAUD incorrectly set. Set HBAUD to 1200 for VHF FM Unable to monitor packets With obvious activity on the channel, you don’t see any activity operations. Set HBAUD to 300 for on your screen. HF narrow shift applications. VHF command incorrectly set.
Page 249 Chapter 13 Troubleshooting 13-17 MHEARD list doesn’t display recently PASSALL is ON. Turn PASSALL OFF No calls listed, or all information is heard calls. very old Monitored packets not correctly You see monitored packets with PASSALL is ON. Turn PASSALL OFF. displayed.
Page 250 Chapter 13 Troubleshooting 13-18 When using AMTOR or ALIST, you Garbled print. Your station incorrectly decoded a If you’re in the Command mode, occasionally end up getting LTRS character or mistook some enter L to force the DSP to the meaningless sequences of other character to be a FIGS Letters mode.
Page 251: Dsp-232 Problems
Chapter 13 Troubleshooting 13-19 DSP-232 Problems Problem Symptom Cause Test/Solution Unable to transmit. TX indicator on the DSP illuminates Disconnect radio cable from Data but radio doesn’t switch to transmit. Controller, then connect the Red and Brown wire on the radio cable plug together.
Page 252 Chapter 13 Troubleshooting 13-20 Baudot and ASCII Problems Problem Symptom Cause Test/Solution Unable to receive. No characters You are able to issue commands and DCD indicator isn’t illuminated Adjust Threshold control so that appear on the screen. receive confirmation from the DSP, because Threshold control isn’t DCD indicator illuminates when you but no on-air data is displayed.
Page 253 Chapter 13 Troubleshooting 13-21 When using Baudot, you Your station incorrectly decoded a If you are in command mode, type occasionally end up getting FIGS character or mistook some 'N(return)' to force the data controller meaningless sequences of letters. other character to be a LTRS to Figures mode.
Page 254 Chapter 13 Troubleshooting 13-9...
Page 255 Look for jumpers JP10 and JP11 near the fuse at the rear of the DSP-232 as shown in figure AD-1 below. Jumper JP10 controls the output level of radio port 1, and JP11 controls the output level of port 2. When the jumper is towards the right, the output level is high (high and low are printed on the circuit board near the jumper for your convenience).
Page 256 DSP-232 Manual Addendum September, 05 AD-2...
Page 257: Appendix A - Specific Radio Connections
Appendix A Radio Connections Appendix A Radio Connections Overview This appendix provides radio connection information from your AEA data controller to approximately 400 different models of amateur transceivers. Each radio listed references a connection figure and possibly a not on connections. Notes are below on this page. Connection figures appear following the table of radios.
Page 258 Appendix A Radio Connections Note 6 This connection only valid with PCB-88, PK-96, DSP-232 Radio Port 2 only, DSP-2232, and PK-900 Radio Port 2 only. This connection is also appropriate for use at 9600 baud applications with radio in DATA mode.
Page 259 Appendix A Radio Connections Radio Connection Diagrams September, 05...
Page 260 Appendix A Radio Connections September, 05...
Page 261 Appendix A Radio Connections September, 05...
Page 262 Appendix A Radio Connections September, 05...
Page 263 Appendix A Radio Connections September, 05...
Page 264: Appendix B - Specifications
Appendix B Specifications Appendix B Specifications Modem: Analog Devices 2105 Digital Signal Processor running at 12.3 MHz in conjunction with Analog Devices 28msp02 audio CODEC (analog to digital/digital to analog converter). Modulator Output Level: 5-100 mV RMS, adjustable with rear panel controls for each radio port. Processor System: Motorola 68340 running at 16.7 MHz.
Page 265: Appendix C - Limited Warranty
Appendix C Limited Warranty Appendix C Limited Warranty Advanced Electronic Applications, Inc. warrants to the original purchaser that this product shall be free from defects in material or workmanship for one year from the date of original purchase. To obtain warranty service: 1) Complete and mail the warranty registration card within 10 days to Advanced Electronic Applications, Inc., and 2) Send written notification to the address below (or telephone) as soon as possible after discovering a possible defect: Advanced Electronic Applications, Inc.
Page 266 150K mailbox (160K RAM). If you install two chips, you will have a 242K mailbox (256K RAM). The firmware in your DSP-232 does not need to be changed. All that is necessary is to install the additional SRAM chip(s).
Page 267 Appendix D Mailbox Upgrade September, 05...
Page 268 Appendix E Schematics and Pictorial September, 05...
Page 269 TEST PORT 1N4148 7406 RESET (3) 10/25 RESET 4.7K 4.7K U12E U12D 6.8V /RESET 1N4148 /RESET /RESET (3,2) 2.2K 74HC14 74HC14 BK10 Timewave Technology Inc. Size Document Number R e v DSP232 LOGIC 012-138 Date: Wednesday, September 14, 2005 Sheet...
Page 270 D2+5 U26B D3+4 /TONE (1) 74HCT86 D4+4 D4+5 U31A U29A 74HCT86 MC34074 1/35 3.09K 3.09K VREF 14006 .0047 LM393 74HC32 9600TX 7474 Timewave Technology Inc. Size Document Number R e v DSP232 ANALOG 012-138 Date: Wednesday, September 14, 2005 Sheet...
Page 271 74HC74 MC7805CT 10/25 NOT USED U14B HEATSINK 74HC32 7406 1N4148 MC7805CT 1N4004 74HC74 74HC32 7406 10/25 MONO 1N4148 100/25 'PWR' Timewave Technology Inc. Size Document Number R e v Schematic - DSP232 DSP 012-138 Date: Wednesday, September 14, 2005 Sheet...

Timewave DSP-232 Operating Manual

FCC Regulations

Chapter 1 - DSP-232

Chapter 2 - Power Supply and Computer Installation

Chapter 3 - Radio Installation

Chapter 4 - Terminal Commands

Chapter 5 - Packet Operation

Chapter 6 - Global Positioning System Applications

Chapter 7 - Maildrop Operation

Chapter 8 - ASCII and BAUDOT Operation

Chapter 9 - AMTOR Operation

Chapter 10 - Morse Operation

Chapter 11 - SIAM and NAVTEX Operation

Chapter 12 - PACTOR Operation

Chapter 13 - Troubleshooting

Appendix A - Specific Radio Connections

Appendix B - Specifications

Appendix C - Limited Warranty

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