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MFJ-56A/B/C
Table of Contents
MFJ-56 A/B/C...................................................................................................2
Expansion Board Installation ............................................................................2
RAM Expansion ................................................................................................7
Firmware EPROM Upgrade ..............................................................................7
MFJ Pactor ........................................................................................................8
Online modes ......................................................................................8
FEC/ UNPROTO ..................................................................8
Monitoring ............................................................................8
Speedup/Speeddown.............................................................9
Automatic online compression..............................................9
Flow Control .........................................................................10
AMTOR while in PACTOR mode ......................................................10
Changeover - Type ahead .....................................................10
Digital Memory ARQ..........................................................................11
LEDs ...................................................................................................11
CW Identifier ......................................................................................12
MFJ PACTOR Commands................................................................................13
Firmware Upgrade.............................................................................................18
Upgrade without Grey-Level modem ................................................................18
Upgrade with the Grey-Level modem ...............................................................20
Multi-Level Operation with Special Terminal Program......................20
Special Terminal Programs...................................................20
Terminal Parameters Changes ...........................................................................21
Optional Items Available for your MFJ-1278 ...................................................22
Firmware Installation.........................................................................................23
Documantation Upgrade....................................................................................23
Firmware Release 4.1 Documentaion ................................................................24
Automatic Signal Analasis (ASA).......................................................24
ASA Operation .....................................................................24
MARS Operation ................................................................................27
Mars Operation .....................................................................27
Operation Hints for Multicom...............................................28
The MARsmode Command ..................................................29
SSTV Operation Update .....................................................................29
FAX Operation Update .....................................................................................31
Host Mode ............................................................................31
MODEM Calibration Procedure Update ...........................................................32
Calset Values Update............................................................35
Mailbox Memory / Pactor Expansion
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Table of Contents
Related Manuals for MFJ MFJ-1272B
Summary of Contents for MFJ MFJ-1272B
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Page 1: Table Of Contents
Multi-Level Operation without Using Special Terminal Program ..20 Multi-Level Operation with Special Terminal Program......20 Special Terminal Programs...........20 Terminal Parameters Changes ................21 Optional Items Available for your MFJ-1278 ...........22 Firmware Installation..................23 Documantation Upgrade..................23 Firmware Release 4.1 Documentaion ..............24 Automatic Signal Analasis (ASA)............24 ASA Operation ..............24... - Page 2 MFJ-56A/B/C Mailbox Memory / Pactor Expansion PACKET Mailbox Update ................35 Set Up your Easy-Mail Mailbox ............36 Mailbox Operation ....................43 Additional Mailbox Features...............47 Forwarding................47 Eliciting Reverse Forwards...........48 Remote Heard Log..............49 Chat Mode ................49 Page SYSOP .................49 Remote SYSOP..............50 Mailbox CText..............50 Idle Timeout................50 Abort..................50...
- Page 3 MFJ-56A/B/C Mailbox Memory / Pactor Expansion...
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Page 4: Mfj-56 A/B/C
MFJ-56 A/B/C Thank You for purchasing the MFJ-56A/B/C mailbox memory/Pactor expansion board for your MFJ multimode. The MFJ-56 is for MFJ-1278 and MFJ-1278T. The MFJ-56 memory/Pactor expansion board is supplied with the most recent EPROM firmware upgrade. Documentation for the firmware is also supplied. - Page 5 Then lift the cover off. Remove the jumper off of JMP5. This takes the lithium battery out of the circuit. If your TNC has a MFJ-2400 modem installed, remove it. Set it aside, it will be re-installed later.
- Page 6 MFJ-56A/B/C Mailbox Memory / Pactor Expansion...
- Page 7 14. 11. If you have an MFJ-2400 modem installed position the 40-pin cable, so the cable is not going to be pinched by the mounting stud for the MFJ- 2400 modem. 12. Now you can re-install your MFJ-2400 modem. Be sure that you do not pinch any of the wires of the 40-pin ribbon cable or the CN402 pigtail when you tighten the MFJ-2400 down.
- Page 8 MFJ-56A/B/C Mailbox Memory / Pactor Expansion 13. Find the original hold-down screw which you removed from the TNC motherboard earlier. Secure the expansion board to the 1/2" spacer which you installed earlier. Again this an aluminum spacer, DO NOT OVER-TIGHTEN it! You will STRIP the THREADS.
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Page 9: Ram Expansion
The (2) outside most pins FIRMWARE EPROM UPGRADE There are two versions of firmware EPROM upgrade for both the MFJ-1278 and MFJ-1278T Multimodes. One version, the MFJ-48, supports standard TNCs without the RAM Expansion Board. The other version, the MFJ-48B, supports the MFJ-1278/T with a memory expansion board and MFJ- 1278B/BTs. -
Page 10: Mfj Pactor
MFJ-56A/B/C Mailbox Memory / Pactor Expansion MFJ PACTOR This section of this instruction pertains strictly to the PACTOR upgrade feature. It will explain the functions and then go through the PACTOR commands. Online modes As in packet, pactor also contains command and converse modes. Please note that switching between them is modelled on the "NEWMODE ON"... -
Page 11: Speedup/Speeddown
MFJ-56A/B/C Mailbox Memory / Pactor Expansion [Connect] message: Other station's connect attempts received when idle are monitored with a message containing the called station's callsign. To sucessfully monitor a connect attempt to someone else, the called callsign must be at least 4 characters in length, and the signal of sufficient quality that the 200 baud area is received error-free. -
Page 12: Flow Control
"p_cmd:" prompt. AMTOR while in PACTOR mode AMTOR calls (1278 rev 10 only): MFJ's Pactor implementation is downward compatible with AMTOR-only stations. That is, even if the TNC is in pactor "p_cmd:" mode it will automatically detect and respond to incoming AMTOR ARQ connection attempts. -
Page 13: Digital Memory Arq
(type-ahead). Digital Memory ARQ MFJ's pactor incorporates Digital memory ARQ. Memory ARQ enables the reconstruction of a good packet when a retried packet is repetively received with one or more bit errors. Memory ARQ is accomplished by accumulating... -
Page 14: Cw Identifier
MFJ-56A/B/C Mailbox Memory / Pactor Expansion ACTION MON: The TNC is idling and has not monitored any information packets in the past second RX: n/a TX: n/a RX: Sending ack control sig TX: Last packet acknowledged MON: Received new packet RX: Dupe rcvd;... -
Page 15: Mfj Pactor Commands
MFJ-56A/B/C Mailbox Memory / Pactor Expansion MFJ PACTOR COMMANDS Generally, the following commands are only valid when issued at the p_cmd prompt. Note that a few of the parameters use the same names as packet commands but the parameters themselves are NOT shared between the different modes. - Page 16 1.0 unit because of its use of regular ascii 0x55 ("U") characters to fill and terminate callsigns. MFJ uses ascii 0x0f as specified in pactor documents, instead of 0x55 to fill, and thus fixes the bug.
- Page 17 MFJ-56A/B/C Mailbox Memory / Pactor Expansion Puts you in converse mode LC [callsign]- Initiates an ARQ link to callsign using extended (longpath) timing to support long txdelays or long skip paths LEdmode 0/1 - default: 1 - Controls whether the 1278 flashesit's LEDs rapidly for each cycle a 200 baud packet is sent,received, or expected.
- Page 18 NO200 operation. Regardless of the setting of NO200, the TNC complies. This ensures connectivity with non- MFJ units. PASS nnn- 0<=nn<=255 default ^V - Same as 1278. (Doesnt work for ^Y Changeover) PTOver- >...
- Page 19 MFJ-56A/B/C Mailbox Memory / Pactor Expansion not work, particularly at longer distances. If difficulty is experienced, try using the longcall command to connect ("LC"). Initiate 100 baud FEC. Initiate 200 baud FEC. URepeats nn- 1<=nn<=7, default 1. The UREPEATS parameter specifies how many retransmissions to perform for each FEC data packet sent.
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Page 20: Firmware Upgrade
Mailbox Memory / Pactor Expansion FIRMWARE UPGRADE The MFJ-48B is the latest firmware upgrade for the MFJ-1278 and the MFJ- 1278T multi-mode data controller. This firmware is Release 4.1. Any MFJ- 1278 or MFJ-1278T with the mailbox memory/PACTOR expansion board installed must use firmware Release 4.1 which is supplied with the memory... - Page 21 MFJ-56A/B/C Mailbox Memory / Pactor Expansion If your MFJ-1278 does not have the multi-gray level modem board and you wish to install it, contact MFJ Enterprises, Inc. for information concerning this modem board. Multi- gray level modem board requires factory installation.
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Page 22: Upgrade With The Grey-Level Modem
4 gray levels and FAX pictures will be in 2 levels. Multi-Level Operation with Special Terminal Program If you are using a special terminal software as described below, your MFJ- 1278 can transmit and receive up to 16 gray levels in FAX and SSTV modes. -
Page 23: Terminal Parameters Changes
Multicom (version 2.2) you can upgrade it to the new MULTICOM (version 3.1) terminal program by ordering the MFJ-49B for 5 1/4" disks or MFJ- 49BM for 3 1/2" disks for $29.95 by sending in the old disk 1 or proof-of- purchase. -
Page 24: Optional Items Available For Your Mfj-1278
In previous MFJ-1278 firmware releases (Releases 2.3 and earlier, AWLEN is defaulted to 7 and PARITY is defaulted to EVEN. If your computer terminal program parameters are set to match the old MFJ- 1278 firmware parameters, then you must change the AWLEN and PARITY... -
Page 25: Firmware Installation
NOTCH will be on the left. Again DO NOT concern yourself with how the IC label is positioned. Install the new EPROM with firmware on the MFJ-1278 board at U23. Make sure that no IC pins are bent under the IC, or that no IC pins are became broken off during the installation process. -
Page 26: Firmware Release 4.1 Documentaion
Mailbox Memory / Pactor Expansion FIRMWARE RELEASE 4.1 DOCUMENTATION The MFJ-1278 is designed to keep pace with the ever changing field of digital communication technology. By simply changing the firmware of the MFJ-1278, existing features of the MFJ-1278 can be improved and new features can be easily added. - Page 27 300 baud RTTY or ASCII, depending on how data bits ASA said the signal had in it's analysis. If data bits was 5 then ASA will switch the MFJ-1278 into RTTY mode. If the data bits were 7 ASA will switch the MFJ-1278 into ASCII mode.
- Page 28 MFJ-56A/B/C Mailbox Memory / Pactor Expansion If the ASA result is a 100 baud signal, the MFJ-1278 will prompt the user that the signal could be AMTOR. If this occurs then the user can enter the following from the cmd: command prompt: OK AMTOR <CR>...
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Page 29: Mars Operation
"RBIT 0". Note that when using ASA, noise will have major effect on the degree of its effectiveness. If no signal is present while the MFJ-1278 is in ASA mode, Wtg:CD, will be displayed. Simply press the "Return" key to return to CMD: command prompt. There is no need to type ASA to go back into the ASA mode, because once invoked ASA is always active. -
Page 30: Operation Hints For Multicom
Pressing the F10 key takes the user into the TEXT EDITOR. Using the EDITOR commands take and block off the pieces of traffic which needs to be sent. After blocking off the traffic, use F9 to send the traffic to the MFJ- 1278 to be transmitted. -
Page 31: The Marsmode Command
When using a standard terminal program the MFJ-1278 will support SSTV in 8, 12, 24 and 36 seconds B & W Robot formats in 4 gray levels thru its built-in printer port. The MFJ-1278 can be set to operate SSTV both in Color and 16 gray levels by turning the command 16Levels on and the command 8Levels off. - Page 32 If your terminal program does not support 16 gray levels, remember to set the command 8 Levels on and 16 Levels off. The MFJ-1278 will automatically select 8 TVBreak values. In SSTV transmitting, the PIXtones and command have been update to 16 levels.
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Page 33: Fax Operation Update
Mailbox Memory / Pactor Expansion If you are not using a special terminal program which supports multi-gray or color FAX operation, you must use the MFJ-1278 built-in printer port to receive FAX pictures. The MFJ-1278 printer port will only display FAX pictures in 2- levels, not in color or multi-gray levels. -
Page 34: Modem Calibration Procedure Update
Mailbox Memory / Pactor Expansion MODEM CALIBRATION PROCEDURE UPDATE The Modem Calibration procedure for the MFJ-1278 has been updated for firmware Release 4.1. In Appendix B of the MFJ-1278 manual, modem calibration procedure method I (page 2 thru page 5) should be replaced by... - Page 35 MFJ-1278. Note that the difference in the two readings can be as much as 20Hz, this is normal. 14. With each press of the SPACE BAR, the MFJ-1278 will display the following frequencies: 1550Hz..+/- 20Hz.
- Page 36 2250 Hz: 70 {35} NOTE:This may take a few seconds to appear due to the sampling rate of the MFJ-1278. The numbers on the screen again will vary from 65 to 75. 17. Press the SPACE BAR. The MFJ-1278 will respond: DEMODULATOR ALIGNMENT.
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Page 37: Calset Values Update
26. Press the SPACE BAR. The MFJ-1278 will display the CMD: prompt. This indicates completion of the Modulator and Demod- ulator Calibration. Calset Values Update Under Appendix B, page 12 of the MFJ-1278 manual, add the following Calset values to the table listed. Tone CALSET#... -
Page 38: Set Up Your Easy-Mail Mailbox
MFJ-1278 manual (Chapter 5, page 21-25). Set Up your Easy-Mail Mailbox The MFJ Easy-Mail Mailbox is now a Single-user device. The Mailbox can now be operated independently from the standard packet operation. There are certain commands which need to be set. These will be explained later in this instruction. - Page 39 MFJ-56A/B/C Mailbox Memory / Pactor Expansion keep time even with the MFJ-1278 turned off. You will not have to set your MFJ-1278s "DAYTIME" every time your MFJ-1278 is powered up. Type: MAILBOX ON <CR> Now your MFJ-1278 is ready for simultaneous Mailbox/Packet operations.
- Page 40 MFJ-56A/B/C Mailbox Memory / Pactor Expansion message of 'T'raffic. Below are the edit prompts and an explanation as to what their functions are: To: The callsign of the person the message is going to goes here. It must be different than MYcall or MYMcall.
- Page 41 MFJ-56A/B/C Mailbox Memory / Pactor Expansion This flag is set when a message is forwarded. Messages which are eligible to forwarded are: Messages where the N flag is set. Messages that have no @ addresses that are different from MYMcall.
- Page 42 MFJ-56A/B/C Mailbox Memory / Pactor Expansion This command allows the remote user, local or remote SYSOP to list all messages in the mailbox. All of slots which are currently in use will be listed. They all will have the slot number, flag field, the destination callsign, originator callsign, subject field.
- Page 43 {0} Mailbox (B,E,H(elp),J,K,L,M,R,S,T) > Thus the {0} indicates the memory bank has been switched to bank NOTE: The "M" function applies only to an MFJ-1278 which have the MFJ-56A, B, or C expansion board installed and Release 4.1x is used.
- Page 44 MFJ-56A/B/C Mailbox Memory / Pactor Expansion This command allows the remote user to page the SYSOP. When the T command is invoked from the remote user the following message appears on the SYSOP's computer screen and it also is sent back to the remote user's screen: Paging SYSOP;...
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Page 45: Mailbox Operation
MFJ-56A/B/C Mailbox Memory / Pactor Expansion MAILBOX OPERATION First establish a connection to the Mailbox station. If the Mailbox of the station to which you are trying to connect with is ON, then it will answer back with the Mailbox prompt: Mailbox Ready nn free {n} Mailbox (B,E,H(elp),J,K,L,M,R,S,T) >... - Page 46 MFJ-56A/B/C Mailbox Memory / Pactor Expansion The Mailbox will respond with: Send msg; Control-Z or /EX to end: The user will then enter the message at the cursor prompt. If you are using a 512K or 128K Mailbox then you can actually upload disk files into the Mailbox.
- Page 47 The Subject: column will contain a brief message title. Note that the number of slots for an MFJ-1278 without memory expansion board is 30. For an MFJ-1278 with the memory expansion installed the maximum slots per memory bank is 99.
- Page 48 MFJ-56A/B/C Mailbox Memory / Pactor Expansion nn free {n} Mailbox (B,E,H(elp),J,K,L,M,R,S,T) > Anyone who accesses the Mailbox can read messages or which are addressed to him/her. Also a message which is a addressed to ALL, such as bulletins can be read by anyone. Messages can be read by two (2) different methods.
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Page 49: Additional Mailbox Features
Other MFJ-1278 mailbox features are as follows: Forwarding The MFJ-1278 Mailbox now has the ability to Forward mail to most full service and personal mailboxes. This feature allows you to compose your mail on your TNC, at your leisure, and then Forward the resulting messages for eventual delivery. -
Page 50: Eliciting Reverse Forwards
The message header can be altered through the Mailbox Edit command. Please refer to the EDIT command in this manual. When the FO CALLSIGN is issued the MFJ-1278 will initiate a connect request to the destination BBS. If the connection is successful the your mailbox will proceed to send the message to the destination BBS. -
Page 51: Remote Heard Log
When all messages are forwarded, if the destination mailbox supports reverse forwarding (as determined by $ in it's SID) then the MFJ- 1278 will attempt to elicit a reverse forward. Remote Heard Log This handy feature allows the remote user to query the TNC heard log at any time. -
Page 52: Mailbox Ctext
The MFJ-1278 also incorporates a new "bytes free" counter. It is updated as the mailbox fills or empties. In the case of the MFJ-46B and MFJ-46C (128K and 512K respectively) it keeps up with the available RAM in multiple memory banks. - Page 53 MFJ-56A/B/C Mailbox Memory / Pactor Expansion This is the dedicated callsign for the mailbox. If MYMCALL equals MYCALL, the TNC responds to incoming connections in mailbox mode. When there is no callsign put in MMcall, the mailbox is inaccessible to remote users.
- Page 54 MFJ-56A/B/C Mailbox Memory / Pactor Expansion The command string can be cleared by typing the command, and then entering the % sign where the text would normally be entered. Also the RESET command will empty the MCText command. For example you might want to set your MCText to: Welcome to the Mailbox...
- Page 55 MFJ-56A/B/C Mailbox Memory / Pactor Expansion "R:920801/1200 @:N5AUV.#MLBFL.FL.USA.NA [N2WX User/Sebastian] Z:32958 #:8" KILonfwd ON/OFF Mode: Mailbox Default: OFF Parameters: ON Messages forwarded out of Mailbox will be killed after forwarding process is complete. OFF Default; Messages forwarded out of the Mailbox are not killed after forwarding process is completed.
- Page 56 MFJ-56A/B/C Mailbox Memory / Pactor Expansion NODEPath Mode: Mailbox Default:" " Enter the command the TNC will issue to command the node connected by the NODEFORW command to link with the receiving BBS. Example: cmd:NODEPATH C KB4VOL cmd:NODEFORW PSL5 This sequence first connects to the PSL5 node. When connected, the TNC sends the node connect command "C KB4VOL"...
- Page 57 MFJ-56A/B/C Mailbox Memory / Pactor Expansion Entering a callsign here permits the owner of the call to perform sysop functions remotely. Sysop functions include editing, reading, and killing any mailbox message. When this parameter is blank, the remote user may only read non- P messages and messages to or from himself.
- Page 58 MFJ-56A/B/C Mailbox Memory / Pactor Expansion The TIMEDMIN parameter is compared against the minutes register of the real time clock to determine when the TIMEDCMD string is sent to the command interpreter. Setting this parameter to 60 disables the feature.
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Page 59: Additional Commands Update
<Speed> <Confidence Factor>. <Data Bit> <RXInvert On/Off> ASA will be used in conjunction with the OK command. Once the user accepted the results given by the ASA, MFJ-1278 will select the appreciate modem, match the data rate, set the RXInvert and will be ready to receive the signal. - Page 60 MFJ-56A/B/C Mailbox Memory / Pactor Expansion PROFMARS Mode: RTTY/ASCII Immediate command PROfmars command causes the MFJ-1278 to set the following parameters for MARS operation: AUTOLF CCITT DIDDLE LFADDALT LFIGNORE MARSMODE UNSHIFT RXLFNOCR MARSMODE n Mode: RTTY/ASCII Default: 0 n=0 to 3 for n=0, MARS QSO mode...
- Page 61 TVB $80,$46,$47,$48,$4C,$4F,$52,$54,$59,$5C,$5E,$60,$63,$67,$69 TXDIDDLE ON|OFF Mode: Packet Default: Off TXDIDDLE determines whether or not the MFJ-1278 uses a highly efficient square wave signal in place of flags during the transmitter delay (TXDELAY) period. When TXDIDDLE is ON, you may select even...
- Page 62 ON The MFJ-1278 will transmit and receive FAX and SSTV in 16 gray levels OFF The MFJ-1278 will transmit and receive FAX and SSTV in 8 or 4 gray levels depending on the setting of the MULTIFAX command. In FAX and SSTV modes, if 16Levels is ON and 8Levels is OFF, MFJ-1278 will receive and transmit FAX and SSTV data in 16 gray levels.
- Page 63 CONVERSE<cr> <CR> cmd: This sequence will send an unconnected packet. Once the local TNCs have responded with ID packets, then the user can press a "CRTL-C". The MFJ- 1278 will respond with the cmd: prompt. MNONPrin ON|OFF default: ON...
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Page 64: Command Default Update
EAS is ON and ECHO is OFF real time echoing of all transmitted CW, RTTY, and ASCII text is enabled. COMMAND DEFAULT UPDATE following command default settings have been changed since the printing of the MFJ-1278 main manual: Command New Default Value Old Default Value...
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