Audiovox FR-1428 - Manual (Page 13)

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VOX Sensitivity Level
To set the VOX sensitivity level:
1. With the radio off, press the Function (F) button and, at the same time,
press the Power button.
2. LE-03 (or 01-05), or dE-03 (or 01-05) will be displayed. If dE is displayed,
press the Function (F) button and LE--- (level) will be displayed.
3. Press the Up or Down button to select from 1 to 5 voice sensitivity levels,
with 1 being the most sensitive and 5 being the least sensitive.
VOX Delay Adjustment
To adjust the VOX delay:
1. Perform steps 1. through 3. above for VOX sensitivity level; then press
the Function (F) button.
2. dE-03 (or 01-05) will be displayed.
3. Press the Up or Down button to select from 1 to 5 time delays, with 1
being the fastest and 5 being the slowest.
4. Press the Monitor (M) or PTT button to exit the VOX sensitivity/delay
mode.
Roger Beep Tone
The unit will also transmit a beep tone sequence after each transmission to
signal the receiving party that transmission has ended. This tone is called a
“Roger Beep”. Press the press Function (F) button six times until the ( RGB ) icon
flashes and “on” or “oF” appears. Then press Up ( ) or Down ( ) button to set
the function on. The ( RGB ) icon will remain displayed. To disable the “Roger
Beep”, proceed as before, until Beep Tone icon appears flashing. Then press
Up ( ) or Down ( ) buttons to set the function to off. Press the PTT button to
confirm your selection.
Button Confirmation Tone
Whenever the Up/Down or Function (F) select button is pressed, the speaker will
sound a beep tone to confirm each press, provided the key tone feature is
enabled. To disable the key tones, press Function button seven