TIMTER™ Transmitters

Quasonix TIMTER™ transmitter

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 Product Lines

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.

13 thoughts on “TIMTER™ Transmitters”

  1. Hello.

    I have two questions about power supply.
    1. Could you let me know if an isolated DCDC is used to supply power to the transmitter. If so, let me know the insulation resistance value (XXMΩ or more).

    2. Could you let me know if the transmitter is a built-in overcurrent protection circuit? If so, let me know the protection current value and shutdown time.


    • 1. All grounds are common on Quasonix transmitters. This includes Power, Chassis and Serial Communications.
      2. All Quasonix transmitters have over current protection. The set point depends on the transmitter ordered. If you provide a part number, we can provide a set point for over current protection.

  2. Hello,
    I am currently integrating this transmitter into a design we’re modelling in Solidworks. Could you please share the *.SLDPRT or *.STEP file with me?
    This would be greatly appreciated.
    Kind Regards,

  3. 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.

  4. 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.

  5. 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)

  6. 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.


    • 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.


Ask a Question or Make a Comment

Discussions are moderated and should be professional and relevant. Please see our comment policy for details. Your email address will not be published.