Vertex Standard LTR VX-2200 Service Manual page 17

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5. Threshold Noise Squelch

Note: The "RX VCO Tune Voltage", "PLL Reference Frequency", and "RX Sensitivity (RX Tune)" must be done before this

alignment is started.

Set the transceiver to CH1 (band center, wide devia-

tion) via the "Channel" box on the "Alignment" win-

dow.

Tune the RF output of the Radio Tester to 481.100 MHz,

then set the output level to –8 dBµ with ±3.0 kHz de-

viation @ 1 kHz tone modulation.

Click the left mouse button on the "Threshold Noise

SQL" button.

Click the left mouse button on the "Start" button. The

CE94 will get the alignment value of Threshold Noise

Squelch and display it in the alignment window.

Press the "OK" button on the window, the value of the

alignment for Noise SQL Threshold Level (wide de-

viation) will be saved in the radio.

Set the transceiver to CH 2 (band center, narrow de-

viation) via the "Channel" box on the "Alignment"

window.