Vertex Standard VX-180U Service Manual page 16

Alignment
MAX Deviation
Set the transceiver to CH 2 (band center).
Inject a 1 kHz tone at –17 dBm to the MIC jack.
Open the "Adjust Adjust" window on CE44, then select the
Adjust Adjust Adjust
"MAX Deviation MAX Deviation" parameter.
MAX Deviation MAX Deviation
MAX Deviation
Press the [ ENTER ] key to enable programming of this
parameter; use the [ ] or [ ] arrow keys so that the
deviation meter reading is ±4.2 kHz (±0.1 kHz) (for 25
kHz steps, Ver. D and AS1), ±4.3 kHz (±0.1 kHz) (for
25 kHz steps, Ver. CS) or ±2.1 kHz (±0.1 kHz) (for
12.5 kHz steps) deviation.
Press the [ ENTER ] key to lock in the new data.
CTCSS Deviation
Set the transceiver to CH 2 (band center).
Open the "Adjust Adjust" window on CE44, then select the
Adjust Adjust Adjust
"CTCSS Deviation CTCSS Deviation" parameter.
CTCSS Deviation CTCSS Deviation
CTCSS Deviation
Press the [ ENTER ] key to enable programming of this
parameter; use the [ ] or [ ] arrow keys so that the
deviation meter reading is ±0.8 kHz (±0.1 kHz) (for 25
kHz steps) or ±0.5 kHz (±0.1 kHz) (for 12.5 kHz steps)
deviation.
Press the [ ENTER ] key to lock in the new data.
DCS Deviation
Set the transceiver to CH 3 (high band edge).
Open the "Adjust Adjust" window on CE44, then select the
Adjust Adjust
Adjust
"DCS Deviation DCS Deviation" parameter.
DCS Deviation DCS Deviation
DCS Deviation
Press the [ ENTER ] key to enable programming of this
parameter; use the [ ] or [ ] arrow keys so that the
deviation meter reading is ±0.8 kHz (±0.1 kHz) (for 25
kHz steps) or ±0.5 kHz (±0.1 kHz) (for 12.5 kHz steps)
deviation.
Press the [ ENTER ] key to lock in the new data.
16
RF Frequency
Set the transceiver to CH 2 (band center).
Open the "Adjust Adjust" window on CE44, then select the
Adjust Adjust
Adjust
"RF Frequency RF Frequency" parameter.
RF Frequency RF Frequency RF Frequency
Press the [ ENTER ] key to enable programming of this
parameter; use the [ ] or [ ] arrow keys so that the
frequency counter displays the band center frequency
(±100 Hz) for the version being aligned.
Press the [ ENTER ] key to lock in the new data.
Sensitivity
Set the transceiver to CH 3 (high band edge).
Tune the RF signal generator to the same frequency as
the transceiver's, then set the generator output level to
40 dBµ with ±3.0 kHz deviation @ 1 kHz tone modu-
lation.
Open the "Adjust Adjust" window on CE44, then select the
Adjust Adjust
Adjust
"RX Tune RX Tune" parameter.
RX Tune RX Tune RX Tune
Press the [ ENTER ] key to enable programming of this
parameter. Use the [ ] or [ ] arrow keys to tune for
best sensitivity; ultimately, the radio should be aligned
so that the RF signal generator output level is –6 dBµ
EMF (0.25 µV) or less for 12 dB SINAD.
Press the [ ENTER ] key to lock in the new data.