TIMTER™ Transmitters

Third-Generation Workhorse

Quasonix digital multi-mode telemetry transmitters are the benchmark of the industry, providing unparalleled performance and value, in small, robust, power-efficient packages. The TIMTER™ transmitter, now in its third generation and smaller than ever at 4.1 cubic inches, offers the most versatility of any transmitter in the industry, with advanced capabilities like L/S/C frequency tuning and output power up to 25 Watts.

Quasonix TIMTER™ transmitter with key for size comparison

Quasonix TIMTER™ transmitter with fan-cooled heat sink

Features

Options

Accessories

Features

ARTM Modulations

Quasonix transmitters offer three different modulations of increasing spectral efficiency – PCM/FM, SOQPSK-TG, and Multi-h CPM – also known as ARTM Tiers 0, I, and II, at standard bit rates from 0.1 to 28 Mbps (0.05 to 14 Mbps for PCM/FM). Options (HR/LR) are available to extend the upper limit to a maximum of 46 Mbps (23 Mbps for PCM/FM) and the lower limit to a minimum of 50 kbps (25 kbps for PCM/FM). With bandwidth at a growing premium in flight test telemetry, you can take advantage of 2 to 2.5 times the data capacity of the legacy PCM/FM waveform with SOQPSK-TG and Multi-h CPM.

Product Configurations

RF Output Power

10 mW, 1 W, 5 W, 10 W, or 20 W
S band also available in 25 W

Frequency Band

Lower L band (1435.5 MHz – 1534.5 MHz)
Upper L band (1750.0 MHz – 1855.0 MHz)
S band (2200.5 MHz – 2394.5 MHz)
L/S band
C band (4400.0 MHz – 4940.0 MHz)
C band with “mid” option (C + 5091.0 MHz – 5150.0 MHz)
L/C band
S/C band
L/S/C band

Baseband Interface

TTL or TIA/RS-422 (RS-422)

Other Highlights

Outputs from 10 mW to 25 W and optional variable power – all while drawing less current than the competition
Supports migration to 4400-4950 MHz and 5091-5150 MHz bands at 5 W or 10 W
Automatic Data Rate Tracking
As long as the external clock remains within specified data rates, the transmitter will automatically adjust to it with no programming or configuration required
Bypassable Randomizer
Standard IRIG-106 fifteen-stage randomizer, for applications with non-encrypted data
Straightforward configuration and control and platform-independence with serial terminal programming

Related Literature

Title	Updated	Description
TIMTER™ Transmitter Manual	Oct-2019	Installation and operation of Quasonix’s TIMTER™ Multi-mode Digital Telemetry Transmitters.
TIMTER™ Transmitter Datasheet	Oct-2019	Features, options, specifications, and select accessories for Quasonix’s range of multi-mode telemetry transmitters, including nanoTX™ and nanoPuck™.
Receiver and Transmitter Catalog	Oct-2019	Catalog of products including Rackmount and Compact RDMS™ Telemetry Receiver, nanoTX™ Telemetry Transmitter, TIMTER™ Telemetry Transmitter, and the Rack-Mount Receiver Analyzer.

Options

Available on Most Transmitters

Low Density Parity Check (LDPC) Error Correction System
Multiple hardware-selected presets (2, 4, 8, or 16)
Wide input voltage range
Clock generator output to baseband connector
Randomizer output to baseband connector
Dual power (two settings, “high” and “low”)
Variable power (32 discrete power level settings, spanning 24 dB)
Clock-free baseband interface
High bit rate option increases maximum bit rate to 46 Mbps (23 Mbps for Tier 0)
Low bit rate option decreases minimum bit rate to 50 kbps (25 kbps for Tier 0)
Parallel port frequency programming
Parallel port mode selection
Automatic carrier wave output

Related Literature

Title	Updated	Description
Receiver and Transmitter Low-Density Parity Check Guide	Sep-2019	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.
Receiver and Transmitter Low-Density Parity Check Datasheet	Oct-2019	The Low Density Parity Check (LDPC) Forward Error Correction mode improves link margin equivalent to nearly tripling the operating distance on your telemetry link.
IRIG 106-13, Appendix N Interpretation	Apr-2019	Explains Quasonix’s standard transmitter protocol and how transmitters with the C7 option (IRIG 106-07 control protocol) will behave differently.

Accessories

Supporting Items

Image	Item	Description
	Adapter Plate for 2.5″ x 3.5″ Footprint	This adapter plate allows for the standard 2” x 3” TIMTER™ to be mounted to the larger 2.5” x 3.5” mounting surface occupied by other industry transmitters. Part Number: QSX-AP96
	Heat Sink Thermal Pad	2″ x 3″ Thermal Pad, Bergquist QPAD II, 0.006″/0.152mm thick, for use with heat sinks. Part Number: QSX-AC-TXTP
	MDM-15 RS-422 and TTL Wiring Harness	Female MDM-15 connector wiring harness with banana plugs for power and ground, BNC connectors for both RS-422 and TTL clock and data, and a DB-9 connector for serial control. Part Number: QSX-AC-MDM15-HARNESS-PIN-VR
	MDM-15 RS-422 Connector with Pigtails	Female MDM-15 connector with 36-inch pigtails. For RS-422 clock and data. Part Number: QSX-AC-MDM15-36-PIN
	MDM-15 RS-422 Wiring Harness	Female MDM-15 connector wiring harness with banana plugs for power and ground, BNC connectors for RS-422 clock and data, and a DB-9 connector for serial control. Part Number: QSX-AC-MDM15-HARNESS-PIN
	MDM-15 TTL Connector with Pigtails	Male MDM-15 connector with 36-inch pigtails. For TTL clock and data. Part Number: QSX-AC-MDM15-36-SOCK
	MDM-15 TTL Wiring Harness	Male MDM-15 connector wiring harness with banana plugs for power and ground, BNC connectors for TTL clock and data, and a DB-9 connector for serial control. Part Number: QSX-AC-MDM15-HARNESS-SOCK
	MDM-9 Female to MDM-9 Male Harness	MDM-9 Female to MDM-9 Male Harness, 18 inches. Part Number: QSX-AC-MDM9MF-HARNESS
	Ruggedized Handheld Programmer	The easiest way to remotely control transmitters and receivers without a bulky computer or monitor. Part Number: QSX-AC-HHPROG-1050-B
	Transmitter AC-Powered Heat Sink	Fan-cooled, AC-powered heat sink for transmitters. Used for testing at the bench; not airborne approved. Part Number: QSX-AC-32-HS-12V (formerly QSX-TIMTER-HS-12V).
	Transmitter Digital Frequency and Mode Switchbox	Transmitter digital frequency and mode switch box with MDM-9 connector allows configuration without the use of a computer. Part Number: QSX-AC-DSWBX
	Transmitter-Powered Heat Sink	Fan-cooled heat sink for 2″ x 3″ transmitters for airborne applications. Operates from 21 VDC to 34 VDC, powered from existing transmitter wiring. Part Number: QSX-AC-HS-28V-SP
	Transmitter-Powered Heat Sink Wiring Harness	External wiring harness for fan-cooled heat sink for 2″ x 3″ transmitters. For airborne applications. Part Number: QSX-AC-HARNESS-HEATSINK-TX
	USB to Serial Converter Cable	Allows for transmitter configuration using a computer that has a USB port but no serial ports. Part Number: QSX-AC-USBSER-CONV

Related Literature

Title	Updated	Description
Transmitter Handheld Programmer Datasheet	Oct-2019	Features of the ruggedized programmer, which is the easiest way to remotely control transmitters without a bulky computer or monitor.
Transmitter Heat Sinks Datasheet	Oct-2018	Quasonix offers different types of integrated and add-on heat sinks, as described in this datasheet. Please contact Quasonix for heat sink recommendations for your particular TIMTER™ transmitter.
Transmitter Handheld Programmer Manual (Gen 2)	Aug-2019	Operation of the 2nd Generation Quasonix Ruggedized Handheld Programmer, which is designed to facilitate setting up transmitters for operation.
Transmitter Switchbox Manual (Gen 2)	Aug-2019	How to set up and use the second-generation digital frequency and mode switchbox, released in 2018, for TIMTER™ transmitters.