Alignment; Transmitter Output Power; Ctcss Modulation Level; Dcs Modulation Level - Vertex VXR-1000 Service Manual

Alignment

Transmitter Output Power

Ë
Turn the VXR-1000 off.
Ë
Rotate the CHANNEL Selector Knob to the "16"
position.
Ë
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
"12" position while holding in the PTT switch
continuously.
Ë
Confirm that the "TX" and "PWR" LEDs are
blinking, then release the PTT switch. The
VXR-1000 now is in the Tx Power Alignment
Mode.
Ë
Rotate the CHANNEL Selector Knob to the "3"
position.
Ë
Press and hold in the PTT switch, and rotate
the CHANNEL Selector Knob so as to achieve
5.0 Watts on the wattmeter.
Ë
Release the PTT switch, then turn the VXR-
1000 off.
T2005
T2003
T2002
T2004
30

CTCSS Modulation Level

Ë
Select channel #4, with 151.4 Hz CTCSS en-
code. Transmit, and adjust VR1006 on the
MAIN Unit for 0.75 kHz (±0.05 kHz) devia-
tion as indicated on the deviation meter.

DCS Modulation Level.

Ë
Select channel #5, with DCS 023 enabled.
Transmit, and adjust VR1009 on the MAIN
Unit for 0.75 kHz (±0.1 kHz) deviation as in-
dicated on the deviation meter.
Microphone Audio Modulation Level
Ë
Select channel #3, and adjust the AF genera-
tor for 30 mV
the MIC jack.
Ë
Transmit, and adjust VR1005 on the MAIN
Unit for 4.2 kHz (±0.1 kHz) deviation as indi-
cated on the deviation meter.
Alignment Points
output at 1 kHz injection to
TP2006 (Chip Side)
VR1009
VR1005
VR1006
TC2001
T2001