Vertex Standard VX-131 Service Manual page 16

Alignment
MIC Sensitivity
Set the transceiver to "CH 2 (160.005 MHz)" via the
" CH " box.
Inject a 1 kHz tone at –37 dBm to the MIC jack.
Double click the left mouse button on the "
sitivity " parameter to open the pop-up window.
Move the Slide bar, as need, so that the deviation meter
reading is ±3.0 kHz (± 0.1 kHz) deviation.
Click the the left mouse button on the [
in the new data.
16
CTCSS VCO Modulation
MIC Sen-
OK ] box to lock
Set the transceiver to "CH 2 (160.005 MHz)" via the
" CH " box.
Activate the CTCSS encoder with "254.1 Hz" Tone via
the " SUB AUDIO "parameter.
Set the " CTCSS Ref. Modulation
Double click the left mouse button on the "
Modulation " parameter to open the pop-up window.
Move the Slide bar, as need, so that the deviation meter
reading is ±0.9 kHz (± 0.1 kHz) deviation.
Click the the left mouse button on the [
in the new data.
" parameter to " 0 ."
CTCSS VCO
OK ] box to lock