I'm pulling the discriminator audio off the VXR-9000 from PIN 6 which the manual states is 0-3000 Hz Analog output.? There's also an PIN 23 RXD HIGH that?is a Digital Output for DATA Communications. I don't know if that would make a difference.
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I threw my test LTR user into CTCSS mode with a PL of 94.8 and it would fully key up the repeater but the transmit would drop out after a few seconds but keep the CARRIER and RECEIVE LED lit up, obviously it must not be liking the audio and data its receiving.
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I know there's 3 jumpers to mess with but the manual doesn't say what each jumper does, hence why I haven't messed with them yet.
Jared Smudde