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The unit will begin scanning for an active main channel. If a transmission is detected, the
Receive and RSSI icons will appear on the display. To turn off the auto channel scan
feature, return to the Scan mode by pressing the Function button and choose OFF. You can
pause on any channel while in the Auto Channel Scan Mode by pressing the PTT Button
(14) during the reception of a signal for 5 seconds afterward. Pressing the Monitor Button
(13) will resume scanning.
PRIORITY CHANNEL SCAN MODE:
This feature allows you to monitor two different channels at the same time. If you reset any
priority channel other than the current channel in use, the preset channel will be scanned
every 0.5 second, and signals you when a call is received. While in the Priority Channel
Scan mode you may hear transmission from either a primary or secondary channel when
transmitting. The unit will always transmit on the primary channel unless the PTT button
(14) is pressed during or immediately following the reception of secondary channel trans-
mission. To access the Priority Channel Scan mode, proceed as follows:
1. Press the Function button twice; SC will appear flashing on the display.
2. Press the Up Button (8) or the Down Button (12) to choose Pr, and then press
Shift/Enter (
) Button (9) .
3. Select the priority channel you wish to monitor by pressing the Up or Down button.
4. Press the Monitor button (13) to confirm your selection.
NOTE: The unit will scan between the normal channel and the priority channel just
selected.
5. To turn off the Priority channel scan feature, press the Function button (F) until
SC appears flashing on the display; then choose the OFF option.
VOX MODE:
The Voice Activated Transmission (VOX) function allows your voice to activate signal trans-
mission automatically when the FR-1538 is used with an optional hands-free
microphone/headset (FRS-BHST). It also allows hand-free use when a
microphone/headset is not being used without having to use the PTT button (14). When in
the VOX mode, a short beep will sound after the termination of any VOX generated trans-
mission.
VOX SENSITIVITY SELECTION:
This feature allows the user to select the voice/signal level at which the unit will transmit.
The high sensitivity setting ( HI ) should be used in high background noise environments
or when whispering. The low sensitivity setting ( LO ) should be used in low background
noise environments. The normal (NR) setting can be used in most all typical applications.
14