Vertex Standard VXR-1000, Service Manual

Page: 31 / 54

31
Squelch Threshold I
PC Alignment
Select channel #2, and adjust the signal gen-
erator level for 0 dBµ (1.0 µV).
Adjust the squelch threshold level by the PC
so that it just closes ( RX LED turns off).
Manual Alignment
Turn the VXR-1000 off.
Rotate the CHANNEL Selector Knob to the "16"
position.
Press and hold in the PTT switch while you
turn the VXR-1000 on, then rotate the CHAN-
NEL Selector Knob counter-clockwise to the
"13" position while holding in the PTT switch
continuously.
Confirm that the "PRI," "COR," and "PWR"
LEDs are blinking, then release the PTT
switch. The VXR-1000 now is in the Squelch
Threshold Alignment Mode.
Rotate the CHANNEL Selector Knob to the "2"
position, and adjust the Signal Generator level
for 0 dBµ (1.0 µV).
Press and hold in the PTT switch, and rotate
the CHANNEL Selector Knob so that the "RX"
LED turns off (Squelch just closes).
Release the PTT switch, then turn the VXR-
1000 off.
Squelch Threshold II
You can now adjust the Squelch Threshold for
each channel.
Turn the VXR-1000 off.
Rotate the CHANNEL Selector Knob to the "16"
position.
Press and hold in the PTT switch while you
turn the VXR-1000 on, then rotate the CHAN-
NEL Selector Knob counter-clockwise to the
"14" position while holding in the PTT switch
continuously.
Confirm the "MBL," "COR," and "PWR" LEDs
are blinking, then release the PTT switch. The
VXR-1000 now is in the Squelch Threshold
Alignment (for each channel) Mode.
Rotate the CHANNEL Selector Knob to the
channel position where you wish adjust the
squelch threshold level.
Press and hold in the PTT switch, and rotate
the CHANNEL Selector Knob so that the "RX"
LED turns off (Squelch just closes).
Release the PTT switch, then turn the VXR-
1000 off.
Alignment