Interface Of Packet Tncs - Yaesu VX-5R Operating Manual

Interface of Packet TNCs

The VX-5R may be used for Packet operation, using the optional CT-44 microphone adapter
(available from your Yaesu dealer) for easy interconnection to commonly-available con-
nectors wired to your TNC. You may also build your own cable using a four-conductor
miniature phone plug, per the diagram below.
The audio level from the receiver to the TNC may be adjusted by using the VOLUME
knob, as with voice operation. The input level to the VX-5R from the TNC should be
adjusted at the TNC side; the optimum input voltage is approximately 5 mV at 2 kΩ.
Be sure to turn the transceiver and TNC off before connecting the cables, so as to prevent
voltage spikes from possibly damaging your transceiver.
VX-5R O M 11
PERATING ANUAL