Ctcss deviation, Max ref deviation, Std deviation – Vertex Standard VX-410 User Manual

Page 18: Dtmf deviation, Dcs deviation, Sensitivity, Alignment

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18

Alignment

CTCSS Deviation

❒ Set the transceiver to CH 2 (band center).

❒ To adjustment, click the left mouse button on the

“CTCSS Modulation” box, then press the [ENTER]
key to open the pop-up window.

❒ Use the [ ] or [ ] arrow keys so that the deviation

meter reading is ±0.8 kHz (±0.1 kHz) (for 25 kHz steps)
or ±0.4 kHz (±0.1 kHz) (for 12.5 kHz steps) deviation.

❒ Set the transceiver to CH 2 (band center), then key the

transmitter, and confirm that the deviation is ±0.6 kHz
~ ±0.9 kHz (for 25 kHz steps) or ±0.35 kHz ~ ±0.6
kHz (for 12.5 kHz steps).

❒ Press the “OK” box to lock in the new data.

MAX Ref Deviation

❒ Set the transceiver to CH 2 (band center).

❒ To adjustment, click the left mouse button on the “MAX

Ref Deviation

” box, then press the [ENTER] key to

open the pop-up window.

❒ Use the [ ] or [ ] arrow keys so that the deviation

meter reading is ±0.7 kHz (±0.1 kHz) (for 25 kHz steps)
or ±0.45 kHz (±0.1 kHz) (for 12.5 kHz steps) devia-
tion.

❒ Press the “OK” box to lock in the new data.

STD Deviation

❒ Set the transceiver to CH 2 (band center).

❒ Inject a 1 kHz tone at –37 dBm to the MIC jack.

❒ To adjustment, click the left mouse button on the “MIC

Sensitivity

” box, then press the [ENTER] key to open

the pop-up window.

DTMF Deviation

❒ Set the transceiver to CH 2 (band center).

❒ To adjustment, click the left mouse button on the

“DTMF Deviation” box, then press the [ENTER] key
to open the pop-up window.

❒ Use the [ ] or [ ] arrow keys so that the deviation

meter reading is ±3.0 kHz (±0.1 kHz) (for 25 kHz steps)
or ±1.5 kHz (±0.1 kHz) (for 12.5 kHz steps) deviation.

❒ Press the “OK” box to lock in the new data.

DCS Deviation

❒ Set the transceiver to CH 3 (high band edge).

❒ To adjustment, click the left mouse button on the “DCS

Modulation

” box, then press the [ENTER] key to open

the pop-up window.

❒ Use the [ ] or [ ] arrow keys so that the deviation

meter reading is ±0.7 kHz (±0.1 kHz) (for 25 kHz steps)
or ±0.45 kHz (±0.1 kHz) (for 12.5 kHz steps) devia-
tion.

❒ Press the “OK” box 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.

❒ To adjustment, click the left mouse button on the “RX

Sensitivity

” box, then press the [ENTER] key to open

the pop-up window.

❒ Use the [ ] or [ ] arrow keys to tune for best sensi-

tivity; 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 “OK” box to lock in the new data.

This completes the internal alignment routine. To save all
settings and exit, press the “OK” box.

SP

CLONE GND

IN

❒ Use the [ ] or [ ] arrow keys so that the

deviation

meter reading is ±3.0 kHz (±0.1 kHz) (for 25 kHz steps)
or ±1.5 kHz (±0.1 kHz) (for 12.5 kHz steps) deviation.

❒ Press the “OK” box to lock in the new data.

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