Page 1 Applies to Dual Transmitter Firmware V2.xxx Specifications subject to change without notice. All Quasonix transmitter products are under U.S. Department of Commerce jurisdiction categorized as EAR99; not covered by ITAR. No part of the document may be circulated, quoted, or reproduced for distribution without prior written approval from Quasonix, Inc.
Page 2 TIMTER™ Multi-mode Dual Telemetry Transmitter Table of Contents Introduction ............................1 Description ........................... 1 Nomenclature ..........................1 Part Number Field Codes ......................3 1.3.1 Frequency Bands ........................3 1.3.2 Clock and Data Interface ......................5 1.3.3 Serial Control Interface ......................6 1.3.4...
Page 3 TIMTER™ Multi-mode Dual Telemetry Transmitter Internal Clock and Data Option – ID..................12 1.3.23 Limited Current Option — LC ....................12 1.3.24 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD ......12 1.3.25 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD6 ....... 12 1.3.26...
Page 4 Channel Override Format ....................81 RF Output Notes ..........................82 RF Power ........................... 82 Muting RF Output ........................82 Troubleshooting the RF on a Quasonix Transmitter ..............82 Performance Specifications ......................... 86 RF Output ..........................86 Electrical Current ........................86 Environmental Specifications.....................
Page 5 Appendix C – Understanding Clock/Data, AC, D2, and BR ............111 Appendix D – Acronym List ......................114 List of Figures Figure 1: Quasonix Part Number Construction Description ................2 Figure 2: CCSDS 131.0-B-1 Rendering of Basic Convolutional Encoder Diagram ........10 Quasonix, Inc.
Page 6 Receiver in STC Mode ..........................23 Figure 22: Outline Drawing, TIMTER™ Dual Transmitter, 07AH Package, S-band Female MDM-15..24 Figure 23: Outline Drawing, TIMTER™ Dual Transmitter, 07AN Package, S-band Male MDM-15 ... 25 Figure 24: 24.0 in3 TIMTER™ Dual Transmitter ..................26 Figure 25: Outline Drawing, TIMTER™...
Page 7 Table 11: Standard Bit Rates Compared to Low/High Rate Options ............11 Table 12: Standard and Optional User Commands ..................33 Table 13: DC Input Current at Standard Input Voltage ................86 Table 14: TIMTER™ Environmental Specifications ..................86 Quasonix, Inc.
Page 8 Table 15: TIMTER™ EMI Compliance ......................87 Table 16: Carrier Frequencies (MHz) ......................87 Table 17: Transmitter BER Specifications with Quasonix Demodulator ............. 89 Table 18: K and m Values per Waveform ....................90 Table 19: Random Vibration Spectrum ....................... 96 Table 20: Dual Transmitter Input Commands for Channel 1 and Channel 2 ..........
Page 9 This document describes the Installation and Operation of Quasonix’ TIMTER Multi- mode Dual Telemetry Transmitters. The 7.2 cubic inch TIMTER™ Dual Transmitter has a compact 2.0 inch by 3.0 inch design that provides a single MDM-15 interface as a primary connector for power, clock and data, and serial communications, while providing two separate RF outputs via SMA connectors.
Page 10 (COM) port. Terminal Control reflects the more generic case where the transmitter could be controlled by other standard computer interfaces such as Ethernet. The available TIMTER™ software and hardware options are listed below. Refer to section 1.3 for detailed descriptions of each option.
Page 11 Please contact Quasonix for support in ordering TIMTER™ options or for information regarding upgrades to TIMTER™ units that you may already own. The model number identifies the configuration of the unit. For example, model number QSX-VSR2-1100-10-04- 07AH-STC defines a unit configured as shown in Table 1.
Page 12 TIMTER™ Multi-mode Dual Telemetry Transmitter Table 2: Frequency Band Codes Band ID Band Minimum Maximum Default Freq Tuning Code Freq Freq Steps Power Lower S 2200.5 MHz 2300.5 MHz 2250.5 MHz 0.5 MHz 10 W Mid C and Euro Mid C 5091.0 MHz...
Page 13 TIMTER™ Multi-mode Dual Telemetry Transmitter Band ID Band Minimum Maximum Default Freq Tuning Code Freq Freq Steps Power Upper S 2300.5 MHz 2394.5 MHz 2370.5 MHz 0.5 MHz 10 W Lower L, Upper L, S, 1435.5 MHz 1534.5 MHz 1450.5 MHz 0.5 MHz...
Page 14 TIMTER™ Multi-mode Dual Telemetry Transmitter Table 3: Clock and Data Interface Codes Clock Baseband Clock and Data Interface Defaults and Data Interface Code TTL — 10k ohms to ground TTL 10k ohms TTL — 75 ohms to ground TTL 75 ohms TTL —...
Page 15 TIMTER™ Multi-mode Dual Telemetry Transmitter Table 5: ARTM Tier 0 Codes Part Number Code PCM/FM (ARTM Tier 0) Absent Present 1.3.5 ARTM Tier I (SOQPSK-TG) ARTM Tier I codes are listed in Table 6. Table 6: ARTM Tier I Codes...
Page 16 Quasonix. 1.3.10 Automatic Carrier Wave Output Option — AC This option allows the TIMTER to transmit a carrier wave when the clock input is absent, which would normally cause the RF output to be turned off.
Page 17 0-8 follows the BR option request. Corresponding values are as follows: 0 = 57600 (Standard default for all Quasonix transmitters); 1 = 4800; 2 = 9600; 3 = 19200; 4 = 38400; 5 = 56000; 6 = 57600; 7 = 115200, 8 = 230400.
Page 18 Clock-free is an optional mode that transmits user data, but uses an internal bit sync to take the place of the normal external clock. The standard TIMTER requires external clock and data inputs. With the CF option, no external clock is required.
Page 19 1.3.22 High Bit Rate Option – HR The standard TIMTER supports bit rates from 0.1 to 28 Mbps in SOQPSK-TG and MULTI-h CPM modes, 0.05 to 14 Mbps in PCM/FM (Tier 0) mode and in all legacy modes. The HR option increases the bit rate to a maximum of 46 Mbps (23 Mbps for PCM/FM).
Page 20 1.3.27 Low Bit Rate Option – LR The standard TIMTER™ supports bit rates from 0.1 to 28 Mbps in SOQPSK-TG and MULTI-h CPM modes, 0.05 to 14 Mbps in PCM/FM (Tier 0) mode and in all legacy modes. The LR option decreases the bit rate to a minimum of 50 kbps (25 kbps for PCM/FM).
Page 21 Without the PS option, the TIMTER™ supports only one hardware preset, which it reverts to at power-up. The PS in the option string specifies that the unit supports multiple hardware presets (2, 4, 8, or 16). Presets are engaged by grounding various combinations of pins on the terminal/parallel control selection.
Page 22 Telemetry Transmitter 2 Accessories Quasonix offers a number of optional accessories for TIMTER™, including a fan-cooled, bench heat sink, a 2.5” x 3.5” adapter plate, pre-wired mating MDM-15 connectors, complete MDM-15 cable assemblies, a ruggedized handheld programmer, and a USB to serial converter cable. Regardless of the heat sink, Quasonix strongly suggests using a thermal pad, such as Q-Pad®...
Page 23 Figure 5: Airborne IntelliCool™ Heat Sink, Pigtail Cable, and SMA Extender The pigtail cable connects to any TIMTER™, regardless of MDM-15 gender, by plugging the pigtail into either the male or female connector, as shown in Figure 6 and Figure 7.
Page 24 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 6: Close-up Using Female MDM-15 Figure 7: Close-up Using Male MDM-15 Connector Connector Figure 8: Two Airborne IntelliCool™ Heat Sinks Connected to 4 x 3 Dual Transmitter (24xx Package) Quasonix, Inc.
Page 25 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 9: One 4 x 3 Airborne IntelliCool™ Heat Sink Connected to a 4 x 3 Dual Transmitter (24xx Package) 2.3 Pre-wired MDM-15 for RS-422 Units Part Number: QSX-AC-MDM15-36-PIN An MDM-15 connector with 36” color-coded pigtail cables for connecting to transmitters with the RS-422 clock and data baseband interface is shown in Figure 10.
Page 26 2.4 Pre-wired MDM-15 for TTL Units Part Number: QSX-AC-MDM15-36-SOCK Quasonix offers an MDM-15 connector with 36” color-coded pigtail cables for connecting to transmitters with the TTL clock and data baseband interface. Figure 11: Pre-wired MDM-15 with 36” Pigtails for TTL 2.5 MDM-15 Wiring Harness for RS-422 Units...
Page 27 2.6 MDM-15 Wiring Harness for TTL Units Part Number: QSX-AC-MDM15-HARNESS-SOCK Quasonix offers an MDM-15 wiring harness for connecting to transmitters with TTL clock and data baseband interface, as shown in Figure 14. It includes banana plugs for power and ground, BNC connectors for clock and data, and a DB-9 connector for serial control and is 35 to 36 inches long depending on the connectors.
Page 28 Part Number: QSX-AC-DSWBX This accessory enables configuration of a TIMTER™ via an external digital switch box. Six LED digits are used to display the mode and frequency. A channel selector for channel 1 or channel 2 enables operation with a Quasonix Dual Telemetry Transmitter.
Page 29 Standard Dual Transmitter The 7.2 cubic inch L or S band TIMTER™ Dual Transmitter is designed to be mounted by four (4) 1 1/4 inch screws through the holes in the four corners, as depicted in Figure 22 and Figure 23. At 1.2 inches tall, the Dual TIMTER™...
Page 30 With the PA on the bottom and the dual transmitter facing the user, the left connector corresponds to channel 2 output (“code 2” if referring to the STC constellation display on a Quasonix receiver) and the right connector corresponds to channel 1 output (“code 1” if referring to the STC constellation display on a Quasonix receiver).
Page 31 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 21: Dual Transmitter RF Outputs Connected to Upper and Lower Antenna Transmitting to Receiver in STC Mode Explanation of Dual Transmitter to RDMS Receiver Example The signals from the two transmitter RF connectors are transmitted simultaneously. The signals from the upper (Ch1) and lower (Ch2) antennas are received at the ground antenna(s) providing input to the receiver.
Page 32 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 22: Outline Drawing, TIMTER™ Dual Transmitter, 07AH Package, S-band Female MDM-15 Quasonix, Inc.
Page 33 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 23: Outline Drawing, TIMTER™ Dual Transmitter, 07AN Package, S-band Male MDM-15 Quasonix, Inc.
Page 34 Side By Side Dual Transmitter The 24.0 cubic inch TIMTER™ Dual Transmitter is designed to be mounted by eight (8) 2 1/4 inch screws through the holes in the four corners and in the center, as depicted in Figure 25. Your mounting requirements may be different.
Page 35 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 25: Outline Drawing, TIMTER™ Dual Transmitter, 24AA Package, Male MDM-15 Quasonix, Inc.
Page 36 Quasonix offers several types of integrated and add-on heat sinks (refer to Section 2). Please contact Quasonix for heat sink recommendations for your particular TIMTER™ transmitter.
Page 37 Most browsers allow you to right click on the link and determine how to open it or print it, regardless of the default setting. Figure 26: Example Quasonix Pinout Drawing Quasonix, Inc.
Page 38 TIMTER™ Multi-mode Dual Telemetry Transmitter The data is sampled on the falling edge of the clock, as shown in Figure 27. Figure 27: Baseband Signal Timing Quasonix, Inc.
Page 39 (logical 0), the transmitter enters the low power mode. 4.2 TIMTER™ Serial Control Protocol When in Serial Control (Terminal) mode, the TIMTER™ is controlled via a simple three-wire serial interface (transmit, receive, and ground). The serial port configuration is as follows: •...
Page 40 3>> 3> Figure 28: TIMTER™ Welcome Message Note: The V1.xxx Dual Transmitter software, displays the current channel and mode as part of the prompt, such as 3_SOQPSK>. If the Dual Transmitter is running V2.xxx, only the current channel displays, such as 2> for Channel 2.
Page 41 Note: All user commands do not apply to all transmitters. Command availability varies depending on the options ordered and any project specific customization applied. Questions? Please call Quasonix for assistance. Table 12: Standard and Optional User Commands...
Page 42 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Active Channel Right square bracket key retunes Standard Frequency Step the transmitter to the next higher active channel frequency, as determined by the frequency step...
Page 43 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Analog Input Select the reference for the Clock and AIR 0 Reference analog input Data Select Interface code D, M, Examples: or S Report the current value...
Page 44 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default BBCK Check BB Clock Displays the current baseband Standard clock value and source for each channel Example: 1_D2>>BBCK BB clock rate chan 1 = 5.000010 Mbps, src = Int...
Page 45 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Baseband Report or set baseband interface Clock and BT R Interface Type type Data Interface Clock and data interfaces are set code D, M, to either TTL or RS-422.
Page 46 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Channel Delay Report or set the channel delay Standard CD 0 for the currently active channel(s) Valid range is 0.0 to 5000.0 in nanoseconds.
Page 47 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Clock Free Report or set the clock free state CF 0 Disable In clock free mode, the transmitter uses the narrowest data pulses to determine the...
Page 48 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Current Channel Selects current channel for Standard CH 1 commands Valid options are: Apply commands to channel 1 2 Apply commands to channel 2...
Page 49 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Clock Source Report or set the clock source Standard CS 0 Unit always reverts to CS 0 (external) at power-up Examples: Display the current clock...
Page 50 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Duplicate Copies settings from one channel Standard Channel to another (channel 1 to channel 2 or channel 2 to channel 1) An “are you sure?” prompt displays before the command runs.
Page 51 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default DAC Level This is a read only command; Standard Displays digital DAC level internal to the transmitter Valid range is 1 to 16383 Example:...
Page 52 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Frequency If no argument is passed, it Standard reports the frequency. If an 1436.5 argument is passed, it sets the frequency. The argument specifies the frequency in MHz. If the command is entered with a ‘?’, then the allowed frequency...
Page 53 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Frequency Step If no argument is passed, it Standard FS 10 reports the current frequency step. If an argument is passed, it sets the frequency step size,...
Page 54 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default High Power Report or set high power level to HP 31 use with dual power option Valid range is 0-31 in 1 dB steps or 0-31.5 in 0.5 dB steps,...
Page 55 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Internal Data Report or set the internal data Standard ID PN15 pattern This setting is used if the Clock and Data Source is set to internal (CS 1).
Page 56 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Impedance Allows user to change impedance Clock/Data IMP 1 Control of the clock and data inputs from interface 75 ohms to 10k ohms code of A...
Page 57 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Read FPGA IO Reads and displays any IO Standard Register register on the FPGA; If a valid hex register address is specified, the [len] dwords starting at that address display.
Page 58 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default LDPC Encoding Enable, disable, or show the LD, LD6 LD 0 Enable current state of the Forward Error Correction (FEC) / Low Density *PSK...
Page 59 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Modes Allowed Reports the modes (modulations) Standard enabled on the transmitter, as determined by the part number Example: Show available modes 0 PCMFM 1 SOQPSK...
Page 60 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Modulation Report or set modulation setting MO 13 MO 0 or requires the first Mode 6, Carrier only, is present one the on every transmitter...
Page 61 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Memory Read Displays flash memory as bytes Standard Flash and ASCII in the format MRF address len Address = Optional valid FLASH starting address to display...
Page 62 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Digital Board Displays the digital board voltage Standard ADC Voltages ADC values; PA HVA voltage and current readings Example: MV Display current values 5V Voltage : 5.586 V...
Page 63 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default PA Attenuator This is a read only command to Standard display the current attenuator settings Examples: Reports PA attenuator setting in dB PAT D Displays the current table...
Page 64 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default PR or RE Restore Defaults Restores factory default Standard parameters for the unit Default is currently the lowest number modulation supported by the transmitter with the selected...
Page 65 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Internal Q Data Sets the internal data pattern to Standard QD PN15 Pattern either a pseudorandom bit pattern (PN 6, 9, 11, 15, 17, 20, 23 and 31 are currently supported) or to a fixed 16 bit word pattern.
Page 66 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Recall Load a saved configuration into Standard RC 0 Configuration the active configuration if the (or PP or configuration number entered is valid If the selected configuration has...
Page 67 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default RFOR RF Off on Specifies whether RF should be Standard RFOR 1 Retune turned off during a frequency retune (even if the new frequency...
Page 68 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default RF On/Off Pin Set or show the polarity of the RF Standard RZ 1 Polarity On/Off pin, which is pulled high internally to 3.3 VDC...
Page 69 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Spectral Sets modulation scaling to -1 * Standard SI 0 Inversion whatever the current scaling is in order to invert the spectrum This is in addition to any changes in modulation scaling factor.
Page 70 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Show Settings Displays most of the common Standard device settings in one compact display On in the format SS chan Chan = An optional channel...
Page 71 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Frequency Sweeps the transmitter frequency Standard Sweep between provided limits for the specified channel(s), with provided step size, at a fixed rate Enables independent channel sweep and start/stop (individually or together);...
Page 72 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Set Up System Selects values to be reported by Standard Status Reporting the SY command; the argument is a string of characters that specifies, in order, the values...
Page 73 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Temperature Displays the current state of the Standard Table State temperature tables and bands Example: Show current band and temperature table states TXBR Dual Transmitter...
Page 74 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Variable Power Report or set variable power level VP Max Typically the transmitter defaults to full power (VP Max); Valid range is 0-31 in 1 dB steps or 0-31.5 in 0.5 dB steps,...
Page 75 TIMTER™ Multi-mode Dual Telemetry Transmitter Mnemonic Name Description Option (s) Setting Factory Command Required Saved? Default Show Critical Displays the current value of all Standard Parameters critical parameters Show All Displays all options (like ZZ) Standard Options except ZF shows all options...
Page 76 Automatic Carrier Output – AC 4.2.3.1.1 This command requires the AC or ACS option. These options allows the TIMTER to transmit a carrier wave when the clock input is absent, which would normally cause the RF output to be turned off.
Page 77 TIMTER™ Multi-mode Dual Telemetry Transmitter If Clock Free is enabled, and the bit rate is set to Auto: 3>BBCK BB clock rate chan 1 = 7.699997 Mbps, src = CF Data C1 (bit rate determined based on the input stream) BB clock rate chan 2 = 7.699997 Mbps, src = CF Data C2...
Page 78 TIMTER™ Multi-mode Dual Telemetry Transmitter 1>BR A CF Bitrate Mode set to Auto 1>BR CF Bitrate Mode currently Auto CF Bitrate currently 7.700 Mbps (CF Operation Enabled) The rate shown is the rate determined by the bit sync looking at the data input.
Page 79 TIMTER™ Multi-mode Dual Telemetry Transmitter CF Bitrate currently 6.100 Mbps (CF Operation NOT Enabled) This example set BR to a fixed rate, but since clock free is not enabled, it is not used. Use the BBCK command to see the actual current clock rate being used.
Page 80 TIMTER™ Multi-mode Dual Telemetry Transmitter 8 Ch2 Clock free clock (only valid with D2) 9 Manual control with NIOS TX DI pin in CMNIO (Quasonix use only) '?' displays a syntax listing Examples: CG 5 // Set CG output to external clock always...
Page 81 TIMTER™ Multi-mode Dual Telemetry Transmitter This command puts the transmitter in clock free mode if it is not already. When D2 is enabled, D2 is added to the prompt after the channel number for easy identification. Prompt without D2 Prompt with D2 (independent mode required) 1>...
Page 82 TIMTER™ Multi-mode Dual Telemetry Transmitter 4.2.3.1.10 Internal Clock Rate – IC This rate is used if the clock source is set to internal (CS 1). It should not be confused with “BR”, which sets the rate of the internal bit sync, which phase locks to the externally applied data, if Clock-free is enabled.
Page 83 TIMTER™ Multi-mode Dual Telemetry Transmitter The IRIG standard calls out six variants of LDPC codes—all combinations of two different information block sizes (k=4096 bits and k=1024 bits) and three different code rates (r=1/2, r=2/3, and r=4/5). LD6 Code Block Size and Code Rate...
Page 84 Contact Quasonix for the default overtemperature value specific to your transmitter. Refer to the technical guide “Quasonix Transmitter Overtemp Control Operation” on the Quasonix website for additional information.
Page 85 TIMTER™ Multi-mode Dual Telemetry Transmitter for a digital switch box sign-on and then attempt to read the frequency, mode, and LDPC settings from the switch box. This command requires the DSWBX (digital switch box) option to be valid. Valid SC settings are: •...
Page 86 TIMTER™ Multi-mode Dual Telemetry Transmitter The valid step size range is >= 1 kHz to <= 1000 MHz. The frequency sweep syntax is: SW [chan [enable [start stop step]]] Where: channel is 1, 2, or 3 for both channels enable is 0 for Off, 1 to enable (On)
Page 87 TIMTER™ Multi-mode Dual Telemetry Transmitter This example display shows selected parameters for one channel. CRateB0 CFRate1 Mode 1 Freq 1 Temp 1 (b/s) (b/s) (Hz) 7812666 1852000000 32.5 Examples: SY ? Help Show the current system status reporting period SY 5000...
Page 88 TIMTER™ Multi-mode Dual Telemetry Transmitter XDC 0 means set the current channel TTL control output to 0 unless XDP (polarity invert) is set, in which case it is set to 1. XDC 1 means set the current channel TTL control output to 1 unless XDP (polarity invert) is set, in which case it is set to 0.
Page 89 TIMTER™ Multi-mode Dual Telemetry Transmitter Then, if XDP is 0, do nothing. If XDP is 1, invert the output. Syntax: XDP [?/0/1] where XDP 0 (no invert) means set the TTL control output to 1 if XDC = 1 or if XDC = A and current FR >= XDF 0 if XDC = 0 or if XDC = A and current FR <...
Page 90 Examples are auto-carrier (-AC option), clock free (-CF option) and recall-holdoff (-RH option). If the procedure below does not demonstrate the working RF output on the transmitter, please contact Quasonix technical support for further help in resolving the issue.
Page 91 RZ 0 sets the transmitter output to turn ON when the RF On/Off pin is low. Is the output present now? If so, go on to Part 2 below. If not, call Quasonix for technical support. Part 2: Verifying modulation output on frequency with internal data Turn on the transmitter.
Page 92 TIMTER™ Multi-mode Dual Telemetry Transmitter Part 3: Verifying modulation output on frequency with user data Turn on the transmitter. Set the mode to one of the available modes on your unit. For example, MO 0 for PCM/FM, MO 1 for SOQPSK, etc.
Page 93 TIMTER™ Multi-mode Dual Telemetry Transmitter If you are still having difficulties at this point, then contact Quasonix technical support. Quasonix Technical Support (1-513-942-1287) or email (support@quasonix.com) When calling technical support, it will speed things up if you have the following information handy: •...
Page 94 This includes electromagnetic interference and compatibility (EMI/EMC) requirements. More specifically, all Quasonix transmitters in the TIMTER™ family (2 cubic inches and above) have been designed to comply with the following requirements of MIL-STD-461G (and MIL-STD-461E and -461F, when those now-obsolete standards have been applied): Quasonix, Inc.
Page 95 6.4 Carrier Frequency Tuning The carrier frequency is selectable in 0.5 MHz steps, except for units with the FO (frequency offset) option. Frequencies supported by TIMTER™ Dual Transmitters are listed in Table 16. For higher power requirements, contact Quasonix. Table 16: Carrier Frequencies (MHz)
Page 96 TIMTER™ Multi-mode Dual Telemetry Transmitter Band ID Band Minimum Maximum Default Freq Tuning Code Freq Freq Steps Power All bands 1435.5 MHz 1534.5 MHz 1450.5 MHz 0.5 MHz 10 W 1750.0 MHz 1855.0 MHz 2200.5 MHz 2394.5 MHz 4400.0 MHz 4950.0 MHz...
Page 97 The frequency error is ± 6 ppm for all causes, including aging over five (5) years. 6.6 Bit Error Rate The transmitter meets the following BER limits when tested with the Quasonix’ multi-mode, multi-symbol trellis demodulator. Table 17: Transmitter BER Specifications with Quasonix Demodulator...
Page 98 TIMTER™ Multi-mode Dual Telemetry Transmitter Maximum Eb/N0 (dB) PCM/FM, Tier 0 SOQPSK-TG, Tier I MULTI-h CPM, Tier II 10-5 12.5 14.3 10-6 10.5 14.0 15.3 6.7 Modulated RF Power Spectrum The transmitter’s modulated spectrum complies with the IRIG-106 PSD mask: M (dBc) = Max ( {K –...
Page 99 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 29: PCM/FM (Tier 0) Power Spectral Density with Mask Figure 30: SOQPSK-TG (Tier I) Power Spectral Density with Mask Quasonix, Inc.
Page 100 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 31: MULTI-h CPM (Tier II) Power Spectral Density with Mask 6.8 Phase Noise Power Spectrum TIMTER™ phase noise limits are shown in Figure 32. Quasonix, Inc.
Page 101 6.9 Baseplate Temperature TIMTER™ is designed for efficient heat transfer between internal heat producing sources and the baseplate. The 5 W, and 10 W Dual TIMTER™ versions are rated for operation with baseplate temperatures ranging from -40°C to +85 °C.
Page 102 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 33: Vibration / Shock Testing System Figure 34: TIMTER™ Mounted for Z-axis Testing Quasonix, Inc.
Page 103 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 35: TIMTER™ Mounted for X-axis Testing Figure 36: TIMTER™ Mounted for Y-axis Testing 6.10.1 Vibration Testing Each transmitter is subjected to the random vibration spectrum depicted in Figure 37 and Table 19 prior to shipment.
Page 104 TIMTER™ Multi-mode Dual Telemetry Transmitter Table 19: Random Vibration Spectrum Breakpoints Frequency (Hz) PSD (g2/Hz) 0.04 0.17 0.17 2000 G (RMS) = 19.6 During flight-qualification testing, the unit under test (UUT) was shaken for 30 minutes in each axis. The results are shown in Figure 38, Figure 39, and Figure 40.
Page 105 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 39: Y-axis Vibration Spectrum Figure 40: X-axis Vibration Spectrum Quasonix, Inc.
Page 106 TIMTER™ Multi-mode Dual Telemetry Transmitter 6.10.2 Shock Testing In addition to vibration testing, the UUT was subjected to shock pulses, as follows: • Type: Half-sine • Level: 60 g • Duration: 5 milliseconds Application: Three (3) shocks in each direction of the three (3) orthogonal axes both positive and negative, for 18...
Page 107 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 42: Shock Pulse, Z-axis Negative Figure 43: Shock Pulse, Y-axis Positive Quasonix, Inc.
Page 108 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 44: Shock Pulse, Y-axis Negative Figure 45: Shock Pulse, X-axis Positive Quasonix, Inc.
Page 109 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 46: Shock Pulse, X-axis Negative Quasonix, Inc.
Page 110 TIMTER™ Multi-mode Dual Telemetry Transmitter 7 Maintenance Instructions The TIMTER™ requires no regular maintenance, and there are no user-serviceable parts inside. Quasonix, Inc.
Page 111 Quasonix. Quasonix shall not be liable for a breach of the warranty set forth in this Limited Warranty unless: (i) the customer gives written notice of the defect, reasonably described, to Quasonix’s Contracts Administrator within thirty (30) days of the time when customer discovers or ought to have discovered the defect and obtains a Return Materials Authorizations (“RMA”) number;...
Page 112 Products; (c) as a result of a failure to follow the instructions in the Operations & Maintenance Manual (d) by the use of parts not manufactured or sold by Quasonix; or (e) by modification or service by anyone other than (i) Quasonix, (ii) an Quasonix authorized service provider, or (iii) your own installation of end-user replaceable Quasonix or Quasonix approved parts if available for the Products in the servicing country.
Page 113 Telemetry Transmitter 9 Technical Support and RMA Requests In the event of a product issue, customers should contact Quasonix via phone (1-513-942-1287) or e-mail (support@quasonix.com) to seek technical support. If the Quasonix representative determines that the product issue must be addressed at Quasonix, a returned materials authorization (RMA) number will be provided for return shipment.
Page 114 TIMTER™ Multi-mode Dual Telemetry Transmitter 10 Appendix A – Preset Option The preset feature operates similar to the stored presets in a car radio. The presence of this option is designated by the characters “PS” and a number (2, 4, 8 or 16) appended to the standard model number. Transmitters with the...
Page 115 Legacy Dual Transmitter, refer to the Legacy Dual Transmitter user manual. Figure 47: Quasonix Dual Transmitter Configuring STC and LDPC in a lab or bench set up requires emulating a field set up, some aspects of which may not be intuitively obvious.
Page 116 TIMTER™ Multi-mode Dual Telemetry Transmitter 11.1.1 Compact Receiver The Compact receiver normally requires only a single direct connection of the RF input from a transmitter, as shown in Figure 49. Figure 49: Example Bench RF Configuration for Single Transmitter and Compact Receiver For STC, the Compact receiver still requires only a single RF input but it must be the combined RF outputs from Channel 1 and Channel 2 of the dual transmitter, as shown in Figure 50.
Page 117 TIMTER™ Multi-mode Dual Telemetry Transmitter Quasonix Transmitter Quasonix Rack Mount RDMS Receiver RF Signal Split into CH1 and CH2 Single RF Signal from Transmitter Sent to Splitter Figure 51: Example Bench RF Configuration for Single Transmitter and Rack Mount Receiver...
Page 118 LDPC, SOQPSK with STC, and SOQPSK with LDPC and STC. In addition to establishing the correct connection(s) to a receiver, proper configuration requires setting up the transmitter with a small number of commands. Figure 54: Quasonix Dual Transmitter When running STC on a Dual Transmitter, both channels must be set up identically.
Page 119 TIMTER™ Multi-mode Dual Telemetry Transmitter 12 Appendix C – Understanding Clock/Data, AC, D2, and BR It is important to understand clock and data priorities when using a dual transmitter. Table 21 describes the possible settings for Channel 1 and Channel 2 Internal Clock, Clock Free, Dual Input Data, Clock Free Bit Rate, External Clock, External Data, and Automatic Carrier Output, and the resulting RF output.
Page 120 TIMTER™ Multi-mode Dual Telemetry Transmitter Channel 2 BR auto/manual Ext Clk In Ext Dat In Channel 2 RF Out RF out is based on Channel 2 IC and ID Auto present RF out is based on auto CF rate derived from ext dat input...
Page 121 TIMTER™ Multi-mode Dual Telemetry Transmitter Figure 55: Dual Transmitter Clock and Data Logic Quasonix, Inc.
Page 122 TIMTER™ Multi-mode Dual Telemetry Transmitter 13 Appendix D – Acronym List Acronym Description Amperes (amps) Automatic Carrier Wave option Amplitude Modulation AQPSK Variant of Quadrature Phase Shift Keying ARTM Advanced Range Telemetry AUQPSK Variant of Quadrature Phase Shift Keying Bit Error Rate...
Page 123 TIMTER™ Multi-mode Dual Telemetry Transmitter Acronym Description Low Bit Rate Lower S-band Modulations Allowed option mbps Megabits per second MHCPM multi-h Continuous Phase Modulation Megahertz Modulation mwatt Megawatt (connector type) Threaded RF connector OQPSK Offset Quadrature Phase Shift Keying PCMFM...
Page 124 TIMTER™ Multi-mode Dual Telemetry Transmitter Acronym Description Space-Time Coding SV or PS Preset Save option TIMTER Tier I Missile Test Transmitter Tracking Loop Transistor Transistor Logic User Datagram Protocol UQPSK Unbalanced Quadrature Phase Shift Keying Upper S-band Universal Serial Bus...

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