Looking to implement an IFB (interruptible fold back) system using an XPR4550. Would like to take advantage of the VOX feature for this, running 1 watt output. Manual seems to indicate that a rear accessory connection is required for VOX, and includes a secondary audio INPUT. I see a separate menu option for audio gain on the accessory input in CPS.
Anyone have reference material, pin-outs etc, that could help in configuring this set-up? The radio operates on a Connect Plus system, but this function will only be used on a conventional analog frequency licensed for IFB.
Paul
Anyone have reference material, pin-outs etc, that could help in configuring this set-up? The radio operates on a Connect Plus system, but this function will only be used on a conventional analog frequency licensed for IFB.
Paul