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QUANTAR External Control Module REV 1.1
https://northcommtechnologies.com/products/quantar-external-control-module
The QUANTAR ECM is unique. Our design allows the repeated audio to remain entirely 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 …
Quantar Mixed-Mode With External Analog Controller CAT ...
https://www.qsl.net/kb9mwr/projects/dv/apco25/Quantar%20External%20Controller.pdf
Quantar Mixed-Mode With External Analog Controller CAT-1000 Controller 50 Pin Telco Centronics Connector #17Signal Function Jumper Function 2 PIN 5 Aux TX Audio TX AUDIO TX AUDIO #1 - Pin 11 PIN 7 GND COR JUMPER PIN 43 GROUND PIN 8 5 VDC Out PTT JUMPER PIN 22 RELAY CLSR PIN 11 Aux In 1 (Ext Failsoft) PL STRIP AUX 1 IN
Introduction and Interfacing of the Motorola Quantar Station
https://www.repeater-builder.com/motorola/quantar/q-interfacing/quantar-interfacing.html
For Quantar stations to operate as a base station an external T/R relay controlled by J23 is needed for single antenna operation. With a wireline board installed the stations are also capable of either programmable TRC (Tone Remote Control) or DC control operation. To use the station for external audio and PTT, a wireline card is required.
Motorola Quantar/Quantro Index Page - Repeater Builder
https://www.repeater-builder.com/motorola/quantar/quantar-index.html
Some external audio sources (like some amateur radio repeater controllers) do not have sufficient audio level. This can be cured with an external amplifier, or modifying the external device for a higher level. W9CR's Quantar Wiki page contains even more Quantar tidbits and helpful parts information.
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