Vertex Standard VX-6000 Alignment Manual page 3

center frequency for the transceiver version.
Transmitter Output Power (VHF)
Select band center frequency channel, and select
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□
high power output level.
Key the transmitter and adjust by control commands
for high power from the computer for (VHF:110
UHF:100) ± 2 Watts as indicated on the wattmeter.
Select band center frequency channel, and select
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□
low power output level.
Key the transmitter and adjust by control commands
for low power from the computer for 50 ±1 Watts as
indicated on the wattmeter.
Transmitter Deviation Transmitter Deviation Transmitter Deviation Transmitter Deviation
Microphone Audio Modulation Level Microphone Audio Modulation Level
Microphone Audio Modulation Level Microphone Audio Modulation Level
Select band center frequency channel, and adjust
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□
the AF generator for 25mV(-30dBm) output at 1 kHz
to the microphone jack.
Key the transmitter and adjust by control
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□
commands for maximum
computer for 4.2kHz ± 0.05kHz deviation as
indicated on the deviation meter.
CTCSS Modulation Level
Select band center frequency channel, with 151.4
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□
Hz CTCSS encode, and reduce the AF generator
injection to zero.
Key the transmitter and adjust by control
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□
commands for CTCSS deviation from the computer
for 0.7kHz ± 0.05kHz deviation as indicated on the
deviation meter.
DCS Modulation Level
Select band center frequency channel, with DCS 023
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□
enabled, reduce the AF generator injection to zero.
Key the transmitter and adjust by control
□ □
□
commands for DCS deviation from the computer for
0.7 kHz ± 0.05 kHz deviation as indicated on the
deviation meter.
Receiver Receiver Receiver Receiver
Set up the test equipment as shown for receiver
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□
alignment, and construct the audio test adapter as
described in the box below.
With the transceiver set to band center frequency
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□
channel, and the RF signal generator tuned to the
deviation from the
same frequency, set the generator for ±3.0kHz
deviation (for 25kHz steps) with 1kHz tone
modulation, and set the output level for 1μV at the
antenna jack.
Adjust by control commands for tune from the
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□
computer for optimum SINAD, reducing signal
generator output level as necessary for proper meter
deflection.
After the previous step, final signal generator level
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□
should be less than 0.25μV for 12dB SINAD.
Squelch Threshold
Select band center frequency channel, and the RF
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□
signal generator turned to the same frequency, set the
generator for ± 3.0 kHz deviation with 1kHz tone
modulation, and set the output level for -8dBμ at the
antenna jack.
Adjust the squelch threshold level by control
□ □
□
commands for squelch threshold from the computer so
that it just closes (BUSY BUSY LED turns off). BUSY BUSY