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.
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
| Type | Title | Updated | Description |
|---|---|---|---|
| TIMTER™ Transmitter Manual | Aug-2021 | Installation and operation of Quasonix’s TIMTER™ Multi-mode Digital Telemetry Transmitters. |
| TIMTER™ Transmitter Datasheet | Jul-2021 | Features, options, specifications, and select accessories for Quasonix’s range of multi-mode telemetry transmitters, including nanoTX™ and nanoPuck™. |
| Receiver and Transmitter Catalog | Jul-2021 | Catalog of products including Rackmount and Compact RDMS™ Telemetry Receiver, nanoTX™ Telemetry Transmitter, TIMTER™ Telemetry Transmitter, and the Rack-Mount Receiver Analyzer. |
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
| Type | 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 | Feb-2021 | 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 | Jul-2020 | Explains Quasonix’s standard transmitter protocol and how transmitters with the C7 option (IRIG 106-07 control protocol) will behave differently. |
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
| Type | Title | Updated | Description |
|---|---|---|---|
| Transmitter Handheld Programmer Datasheet (Gen 2) | Feb-2021 | Features of the ruggedized programmer, which is the easiest way to remotely control transmitters without a bulky computer or monitor. |
| Transmitter Heat Sinks Datasheet | Feb-2021 | 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) | Feb-2021 | Operation of the 2nd Generation Quasonix Ruggedized Handheld Programmer, which is designed to facilitate setting up transmitters for operation. |
| Transmitter Switchbox Manual (Gen 2) | Feb-2021 | How to set up and use the second-generation digital frequency and mode switchbox, released in 2018, for TIMTER™ transmitters. |
Thermal Considerations
It is important that the transmitter’s bottom surface (on the face opposite the product label) be securely attached to a baseplate capable of dissipating the power produced by the transmitter model in use. This mounting baseplate must be flat, smooth, and clean.
ATTENTION: You must operate the transmitter with a proper heat sink. Failure to do so may lead to permanent damage to the unit and will void the warranty. Overheating can occur in a matter of seconds when a transmitter is not properly heat-sinked. In absolutely no case should any type of stickers or labels be applied to the bottom surface of the transmitter.
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.
I have an application with one of your TIMTER transmitters where the export-import categorization is important. The owner’s manual for the TIMTER Transmitter (Rev 3.9) states that all of your products are under Department of Commerce (EAR) jurisdiction, and not ITAR. Can you provide the EAR category for the TIMTER transmitter? Does it fall under 5A101, or is it something else. Thank you in advance.
Peter,
Quasonix transmitters are EAR99.
where I could find how I specify the dimensions because there is a a number to define dimensions but there is 2 others digits XX to complete define dimensions. Example 07XX. How I canspecify XX?
The package code and the pinout code are determined as an output of the quoting process. You first specify all the features you want, and the package code and pinout code are whatever they need to be to provide those features.
Hello,
It looks like that 15 position MDM wiring interface cable has the option to be pins or sockets, suggesting that the connector on the transmitter is configurable. What is the sex of the transmitter connector by default?
Units with TTL clock and data interfaces (only) use pin connectors. Units with RS-422 clock and data interfaces (whether RS-422 only or selectable between RS-422 and TTL) use socket connectors.
Here is a list of available interfaces and their connectors:
T – TTL (75 ohms to ground) – Pin (MDM-15 Male)
H – TTL (10K ohms to ground) – Pin (MDM-15 Male)
A – TTL selectable between 75 ohms to GND and 10k ohms to GND – Pin (MDM-15 Male)
R – TIA/EIA-422 (RS-422) – 120 ohms differential – Socket (MDM-15 Female)
B – TIA/EIA-422 (RS-422) – 120 ohms differential, even when unit powered off – Socket (MDM-15 Female)
M – Dual mode selectable (TTL terminated 10k ohms to GND, RS-422 term 120 ohms diff.) – Socket (MDM-15 Female)
D – Dual mode selectable (TTL terminated 75 ohms to GND, RS-422 term 120 ohms diff.) – Socket (MDM-15 Female)
S – Tri-mode selectable (TTL term 75 ohms to GND, TTL term 10k ohms to GND, and RS-422 term 120 ohms differential) – Socket (MDM-15 Female)
Hello, I am a reliability Engineer and I am looking for a parts list for the Transmitter. Can you provide me with the part list and electrical schematic displaying the parts associated with the Multi-Mode Telemetry Transmitter. If there is already a FMECA available for this component, please also provide that information. My Email can be found below.
Thanks
All our transmitters are COTS products, and design details like parts lists and schematics are highly proprietary. We cannot provide those.
If you have specific questions about the transmitter line, we should first start with a part number. We do have MTBF calculations for some models, and we could share those. Or we can quote doing a new analysis.