QUANTAR External Control Module

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  • Regular price $99.95
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Available NOW Introductory Pricing!

Sometimes spending $600.00 to connect your Motorola QUANTAR to an external controller is a bad idea. Try spending $99.00 on the Northcomm Technologies QUANTAR External Control Module and get almost every control function that you really need, without wasting money on the ones that you don’t.


Most repeater owner/operators require a few simple control functions:

  • The ability to remotely enable and disable the repeater
  • The addition of a courtesy tone upon expiration of COR
  • Selectively or remotely disable transmit or receive PL
  • Remotely change repeater channels
  • Doing all of the above with DTMF or Serial Terminal

With these requirements in mind, we have designed and built an innovative, cost-effective micro-controller in daughter-card form. No cables required. Our QUANTAR ECM provides all of the above functions and more, through off-air DTMF command or via the built-in Serial Terminal.

Our unique micro-controller concept plugs directly into the QUANTAR’s J17 backplane connector, without the need for any specialized tools. The controller is fully powered from the same connector and no additional connection points are required, you simply plug it in and program the repeater as indicated in the installation manual.

The QUANTAR ECM is unique. Our design allows the repeated audio to remain fully within the repeater. Unlike other controllers that route the audio outside of the cabinet, our design leaves the audio alone. Since we do not interfere with the repeat audio path, the QUANTAR ECM will not affect the repeaters alignment settings. In other words, this is the only controller available that does not require test equipment to install.

Here is how you install it:
1. Plug the QUANTAR ECM into the QUANTAR J17 connector
2. Merge our wildcard tables into your code plug
3. Grab a DTMF enabled portable and send a few tones into the repeater and adjust the controller until the Data Valid LED lights up
4. You now have a QUANTAR that can be fully controlled with off-air DTMF or serially via a USB to serial cable.

Here is how it works:
1. The ECM micro-controller can selectively activate up to five QUANTAR logical inputs. The functions of these inputs are selectable within the QUANTAR’s programming software under “wildcard tables”
2. Activate any command available in wildcard via DTMF. These commands include:
  • TX inhibit
  • TX PL strip
  • Channel steering – up to 15 channels
  • High or low power select
  • RX, PL or DCS enable/disable
  • Anything else that you can do with 5 logic inputs and a wildcard table!

3. Provide a selectable courtesy beep. The default shipped beep is the NASA Quindar outro tone

Best of all, the QUANTAR ECM can be installed in less time than it took you to read this description.

Click to Download Technical Specification Sheet

Click to Download the Installation Manual

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