CONVENTIONAL FEATURES
26
Monitor Mode - There may be times when the busy indication is
displayed even though no one is using the channel. Monitoring should
then be performed by disabling Call Guard squelch by taking the micro-
phone off-hook or pressing the
SELSQ
option switch as described on
page 27 or by selecting the monitor mode as described next.
Monitor Mode
The monitor mode temporarily disables squelch control features
(such as Call Guard
®
squelch) so that all messages are heard on the
selected channel. It also overrides the Busy Channel Lockout feature (see
next section) and temporarily disables scanning.
To monitor the selected channel, select the monitor mode by briefly
pressing the
MON
option switch (if available). The
icon is displayed
and the receiver unsquelches when the monitor mode is enabled. To
disable the monitor mode and return to normal operation, press the
MON
switch a second time.
When scanning is enabled, pressing and holding the
MON
option
switch until a tone sounds (approximately 1 second) monitors the scanned
channel instead of the selected channel.
Busy Channel Lockout
The Busy Channel Lockout feature (also called Transmit Disable On
Busy) automatically disables the transmitter if the channel is busy when
the PTT switch is pressed. When a busy condition is detected by this
feature, the transmitter is disabled, “BUSY” is indicated on the lower line
of the display, and a tone similar to a standard telephone busy tone
sounds until the PTT switch is released. This feature is programmed to
operate in one of the following modes on each channel:
Off - The transmitter keys even if the channel is busy.
Noise - The transmitter is disabled if any signal is detected on the
channel.
Tone - The transmitter is disabled if the detected squelch coding is not
correct.
