24
RELM Wireless Corp.
When scanning or priority scanning Channel
Guard channels with the Squelch knob in the
Channel Guard position and activity has been
detected, the Busy Channel Indicator glows for
the time period necessary to determine if the
proper Channel Guard value has been received.
This will cause the Busy Channel Indicator to
flash at various rates.
BUSY CHANNEL LOCKOUT
The Busy Channel Lockout feature applies only
to those channels programmed with a receive
Channel Guard value. When carrier activity is
detected on the channel selected, the radio
checks the receive Channel Guard value. If the
proper Channel Guard value is present, the
radio can transmit on that channel, even if the
Squelch knob is in the Channel Guard position.
If the radio detects an incorrect value or carrier
activity only, the transmitter is disabled. If an
attempt is made to transmit, an alert tone will be
generated and the display will show the word
BUSY
until the channel becomes available or
the PTT switch is released, whether the Squelch
knob is in or out of the Channel Guard detent.
Channels not programmed with a receive
Channel Guard value can be used to transmit
regardless of carrier activity.
BUSY CHANNEL LOCKOUT WITH OVERRIDE
This mode operates in the same manner as
Busy Channel Lockout except that the user can
override and transmit by turning the Squelch
knob off the Channel Guard detent. The
transmitter is locked out only if the Squelch knob
is set to the Channel Guard detent.
BUSY
Summary of Contents for GPH Plus
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