ePTT (PUSH-TO-TALK) Switch

When pushed activates the transmitter.

fKeypad

[VOL] Key

Press this key to activate the volume adjusting mode. Press the [T] or [S] key to adjust the receiver audio volume level.

[SQL] Key

Press this key to activate the squelch adjusting mode. Press the [T] or [S] key to adjust the squelch threshold level.

Press and hold this key for 3 seconds to open the squelch, allowing you to monitor the operating channel. Release the key to resume normal (quiet) monitoring.

[S(UP)] Key

This key is used to change the operating channel, receiver volume level, and squelch threshold level.

Press the key momentarily, the channel (or level) increases one step. Hold- ing the key, the channel (or level) increases continuously.

[T(DOWN)] Key

This key is used to change the operating channel, receiver volume level, and squelch threshold level.

Press the key momentarily, the channel (or level) decreases one step. Holding the key, the channel (or level) decreases continuously.

[WX] Key

Immediately recalls the last-used NOAA (National Oceanic and Atmospheric Administration) Weather Channel from any channel location. Recalls the previously- selected working channel when the [WX] key is pressed again.

Secondary use:

When the [16/9] key is held and the [WX] key is pressed, the radio will change the marine band between the USA, International, and Canadian channels.

[SCAN(DW)] Key

Starts scanning and priority scanning of programmed channels. When scan- ning, press and hold this key to turn on and off priority scan (“P” icon is shown on the bottom left side of the display during Priority scanning).

HX750S

 

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