
VX-3R O
PERATING
M
ANUAL
9
The
VX-3R
may be used for Packet operation using the optional
CT-91
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 the transceiver’s volume
control, as with voice operation (Rotate the
DIAL
knob while pressing and holding the
[
VOL
] key, do not forget to pull the
DIAL
knob to rotate the
DIAL
knob). The input level
to the
VX-3R
from the TNC should be adjusted at the TNC side. The optimum input audio
voltage is approximately 5 mV at 2000 Ohms.
Be sure to turn the transceiver and TNC off before connecting the cables, to prevent volt-
age spikes from possibly damaging your transceiver.
When you are operating in Packet Mode, switch the Receive Battery Saver OFF, as the
“sleep” cycle may “collide” with the beginning of an incoming Packet transmission,
causing your TNC not to receive the full data burst. See page 93 for details regarding
Battery Saver setup.
I
NTERFACE
OF
P
ACKET
TNC
S
Содержание VX-3R
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