Functions; The Scan Function; Vox (Voice Operate Transmit) - Entel HT644 GMDSS User Manual

The Scan Function

1. Select the desired channel to be scanned using the
2. Press the [MEM] button to store the channel in the transceiver's memory. [MEM] is
displayed on the LCD.This channel is now memorised to be scanned.
3. To add further channels, repeat steps 1 & 2.
4. To delete a channel from the transceiver's scan list, press the [MEM] button on a channel
that displays the [MEM] icon until the icon disappears.
5. All channels programmed remain in the transceiver's scan memory, even if the power is
switched off.
6. Adjust the squelch control until the white noise is eliminated.
7. To start scanning, press the [SCAN] key.The scan proceeds from the lowest to the highest
programmed channel number & stops on channels when a transmission is received.
8. To stop the scan at any time, press the [SCAN] key again.
VOX (Voice Operated Transmit)
Press the [MEM] button & switch the transceiver on.The VOX symbol & a "0" will flash. "0"
indicates VOX is switched off, 1 is for low sensitivity, 5 is for normal sensitivity, and 9 is for
high sensitivity. Use the [UP/DOWN] button to select the desired level, press [MEM] to
confirm, the transceiver is now set to VOX.To switch VOX off, go back into VOX programming
mode by holding the [MEM] key whilst switching on. Press the UP/DOWN button until the
vox level is "off" and press [MEM] to confirm.
In VOX mode the transceiver will react to your voice, and transmit automatically without you
having to press the PTT button.There is always a slight delay for the electronic switching &
consideration will need to be given.To get optimum performance from the VOX feature you
should use a noise cancelling headset or earpiece microphone (see accessory options).

Functions

11
& buttons.