USB to Motorola XTL/APX Mobile for transmissions

[MotorolaAPX24]

I am trying to figure out how to get audio from my computer to transmit over my radio. I can’t find wiring diagrams or anything for the mics or I would try to make a cable.

I would love a USB cable that keys up the radio then transmits the audio for the radio to transmit or if not that a headphone jack for the audio and a usb for the PTT signal.

Anybody have any ideas or have done this?

Motorola Mobile head is what I’m working with.

 

[jeepsandradios]

There are a ton of sites on the internet with diagram of the gaci as well as J2 on the back of the radio. You will need a custom cable to do this and it will require a PTT input signal. There is no USB ability to do this.

You can start here - XTL Radio - W9CR

 

[nhfdcadet]

Get yourself a tone remote adapter, and download Commtek, you can make yourself a mono cable to plug into the line out on your audio card

 

[AFD103]

Fun fact: Avigilon, Motorola's higher-end fixed video company, has a product called Radio Alert.
This product takes alarms raised by the camera server and sends them to digital radios via text message over the air and also does text-to-speech and broadcasts audio over the air.

The cable plugs into the back of an XPR mobile and has a USB plug for keying and data, and an audio plug for TTS. The part number for this cable is PMKN4233A

Betcha you could repurpose that cable. For $20, I wouldn't even bother trying to build one.