TIMTER™ Dual Transmitters

Ultimate Bitstream Accuracy Starts Here

Quasonix digital multi-mode dual telemetry transmitters provide the flexibility of two high-
performance, independent transmitters in one package.

Choose the Industry’s Only Dual Transmitter

Choose the Industry’s Only Dual Transmitter

Quasonix is the only manufacturer offering a transmitter engineered specifically for STC and dual-antenna telemetry applications.
View datasheet
Maximize Link Resilience with True STC Support

Maximize Link Resilience with True STC Support

Purpose-built for Space-Time Coding and frequency diversity—delivering robust performance in dynamic RF environments.
View datasheet
Customize Each Channel to Your Mission

Customize Each Channel to Your Mission

Independently configure frequency, modulation, and output power per RF channel for maximum operational flexibility.
View datasheet
Minimize SWaP, Not Capability

Minimize SWaP, Not Capability

High RF performance in a lightweight, space-saving form factor—ideal for airborne and space-rated applications.
View datasheet
Trust a Solution Proven in Flight

Trust a Solution Proven in Flight

Rugged and flight-qualified for demanding test ranges, including high vibration, altitude, and temperature extremes.
View datasheet

Options

Available on Most Dual Transmitters

  • AC: Automatic Carrier Wave Output
  • AI: Auxiliary Input for digital data that is already premod filtered
  • AP: Adapter Plate (hardware accessory)
  • BRx: Baud Rate
  • C7: Quasonix interpretation of IRIG 106-17 Appendix 2-C serial control protocol
  • CE: Convolutional Encoder (k=7 rate 1/2)
  • CF: Clock-free Baseband Interface
  • CG: Clock Generator Output to Baseband Connector
  • DP: Dual Power, 64 settings, user selects one for “high” and one for “low”, chosen via baseband conn. pin
  • FO: Frequency Offset
  • HR: High Bit Rate – Increases default max bit rate to 46 Mbps (23 Mbps for Tier 0)
  • ID: Internal Clock and Data can be saved as a power- up default
  • LC: Low current in the RF Off state, < 10 mA (hdw opt.)
  • LD6: Extended Low-Density Parity Check (LDPC)
  • LR: Low Bit Rate – Decreases default min bit rate to 50 kbps (25 kbps for Tier 0)
  • MA: Below Lower S band, 2025.0 MHz to 2110.0 MHz (for Space operation and Space research applications)
  • MS: Modulation Scaling
  • P9: MDM-9 Accessory Board (hardware accessory)
  • PF: Parallel Port Frequency Programming
  • PM: Parallel Port Mode Selection
  • PS: Hardware Preset (PS2, PS4, PS8, or PS16)
  • RH: Recall Holdoff
  • STC: Space-Time Coding
  • VF: Variable FIFO Depth, controls transmitter latency
  • VP: Variable power (31 settings, spanning 24 dB)
  • XD: External device control via TTL level output pins

Documents

File Icon
Quasonix Catalog

Catalog of Quasonix’s full product line including transmitters, antennas, receivers, networking equipment, and test equipment. Also includes examples of possible product configurations.

File Icon
TIMTER™ Dual Transmitter Datasheet

Features, popular options, and specifications for Quasonix’s dual telemetry transmitters, which optionally support Low-Density Parity Check (LDPC) Coding and are Space-Time Coding (STC) capable.

File Icon
Receiver and Transmitter Space-Time Coding Datasheet

The Quasonix Space Time Coding Solution eliminates link outages caused by the “two-antenna problem,” improving behavior of received signal power and overall link availability.

File Icon
Receiver and Transmitter Low-Density Parity Check Datasheet

The Low Density Parity Check (LDPC) Forward Error Correction mode improves link margin equivalent to nearly tripling the operating distance on your telemetry link.

File Icon
Space-Time Coding ITC Paper

“Space-Time Coding Solution to the Two-Antenna Interference Problem,” by Mark Geoghegan & Louis Boucher; presented at ITC 2014.

File Icon
SOQPSK with LDPC ITC Paper

“SOQPSK with LDPC: Spending Bandwidth to Buy Link Margin,” by Terry Hill & Jim Uetrecht; presented at ITC 2013.

File Icon
Transmitter Configuration with STC and LDPC (Download)

This brief presentation provides flowcharts and diagrams to help clarify transmitter configuration with Space-Time Coding (STC) and Low-Density Parity Check Coding (LDPC)

<1 MB

File Icon
Receiver and Transmitter Low-Density Parity Check Guide

This technical guide introduces Low-Density Parity Check (LDPC) encoding, its uses and benefits, the Quasonix products it is available for, and considerations for optimal set-up and use.

1.1.1

File Icon
Transmitter Binary Protocol Tester Manual

How to test the binary protocol of Quasonix telemetry transmitters using Binary Protocol Tester software provided by Quasonix.

1.0.4

File Icon
JF-12 Files (1 MB Download)

These files address the applicability of the US Government’s JF-12 and DD Form 1494 classification documents to Quasonix’s TIMTER™ transmitter product line.

1 MB

File Icon
TIMTER™ Dual Transmitter Manual, Firmware v2

Installation and operation of Quasonix’s TIMTER™ Multi-Mode Dual Telemetry Transmitters, firmware version 2.xxx (required for transmitters with the -D2 option). Find firmware version with VE command or in startup banner.

1.5.16

File Icon
TIMTER™ Dual Transmitter Manual, Firmware v1

Installation and operation of Quasonix’s TIMTER™ Multi-Mode Dual Telemetry Transmitters, firmware version 1.xxx. Find firmware version with VE command or in startup banner.

1.6.18

File Icon
TIMTER™ Dual Transmitter Manual (Legacy)

Installation and operation of Quasonix’s Legacy Dual Telemetry Transmitters.

1.3.6

File Icon
Transmitter Binary Protocol Manual

The binary serial protocol is designed to facilitate efficient machine to machine communication. This manual defines the binary protocol version 1.009.

4.0.3

File Icon
IRIG 106-13, Appendix N Interpretation

Explains Quasonix’s standard transmitter protocol and how transmitters with the C7 option (IRIG 106-07 control protocol) will behave differently.

1.2

File Icon
Transmitter RF Troubleshooting Guide

Quick, three-part test to verify that the RF output on a Quasonix telemetry transmitter is working correctly.

1.2

File Icon
Receiver and Transmitter Terminal Software

A simple serial port (COM) terminal emulation program used for serial communication with Quasonix products.

1.9b

<1 MB

File Icon
Transmitter Binary Protocol Tester Software

Software (bintest.exe) for testing the binary protocol of Quasonix telemetry transmitters connected to PC via serial port.

1.029

<1 MB

File Icon
Transmitter Get Info Software

Free Quasonix utility that collects diagnostic information from a transmitter via a serial connection to a computer.

1.004

<1 MB

File Icon
STC vs. Traditional Two-Antenna Solution

Recording from an early test flight showing how Space-Time Coding (left haystack) eliminates signal fades inherent in a normal two-antenna solution (right haystack). Quasonix offers a range of dual transmitters specially designed for STC. All third-generation Quasonix rackmount receivers are STC-capable, provided that ARTM Tier I demodulation (SOQPSK-TG) is optionally enabled.

(Used in TM Smorgasbord training, Day 3.)

Thermal Considerations

The heat sink required for a particular transmitter depends heavily on the installation. Factors such as altitude, air temperature, air flow, and mass of the mounting surface all have a substantial impact on the flow of heat away from the transmitter. Quasonix offers several types of integrated and add-on heat sinks. Please contact support@quasonix.com for the power dissipation required and heat sink recommendations for your particular TIMTER™ transmitter.

Regardless of the heat sink, Quasonix strongly suggests using a thermal pad, such as Q-Pad® II from Bergquist.

Ensure Your Next Mission’s Success

Quasonix is the only company in the industry that delivers equipment from end to end on telemetry links, including transmitters, antennas, receivers (with integrated combiner, demodulators, and decoders), and best source selectors. We are ideally positioned to help our customers find the best possible equipment lineup to ensure flawless telemetry data with optimized cost and schedule.

Contact Us