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.

CLONE GND

SP

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.

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.

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Vertex Standard VX-410 Ctcss Deviation, MAX Ref Deviation, STD Deviation, Dtmf Deviation, DCS Deviation, Sensitivity