Yaesu VX-120 Operating Manual

Also see for VX-120 Series: Brochure Specifications Technical supplement

VX-120 OPERATING MANUAL18ADVANCED OPERATIONRF SQUELCHA special RF Squelch feature is provided on this radio. This feature allows you to set thesquelch so that only signals exceeding a certain S-meter level will open the squelch.To set up the RF squelch circuit for operation, use the following procedure:1. Press the [F] key, then press the [LOW(LOCK)SET] key to enter the Set mode.2. Rotate the DIAL knob to select Set Mode Item 34: RF SQL.3. Press the [F] key momentarily to enable adjustment of this Item.4. Rotate the DIAL knob to select the desired signal strength levelfor the squelch threshold (S-1, S-2, S-3, S-4, S-5, S-6, S-8,S-FULL, or OFF).5. Press the PTT switch to save the new setting and return to nor-mal operation.CHECKING THE BATTERY VOLTAGEThe VX-120’s microprocessor includes programming which will measure the current bat-tery voltage.1. Press the [F] key, then press the [LOW(LOCK)SET] key to enter the Set mode.2. Rotate the DIAL knob to select Set Mode Item 12: DC VLT.3. Press the [F] key momentarily to display the current DC voltagebeing supplied.4. Press the [F] key, followed by the PTT switch to return to nor-mal operation.