GENERAL FEATURES
31
On conventional systems, the Transmit Disable On Busy feature can
be used to automatically perform monitoring (see page51). The proceed
tone then does not sound if the channel is busy. Otherwise, the proceed
tone (if enabled) sounds on conventional systems even if the channel is
busy.
With all operating modes, if encryption is used, a 0.9-second delay
occurs before this tone sounds and two beeps are heard instead of one. A
short delay may also occur with conventional calls. These delays ensure
that the radio path is complete before you begin talking so that part of
your first word is not lost.
Stealth Mode
The stealth mode disables the following tones and indicators so that
they do not reveal that you are transmitting or otherwise indicate your
presence. The speaker audio and display remain enabled in this mode.
•All tones (see “Tone Select” on page32)
•The front panel transmit/busy indicator (see page16)
•Display backlight
The stealth mode can be selected by an option switch or the
STEALTH menu parameter (see page33), or is fixed in the on or off
mode by programming. There is no special indication that this mode is
selected except “On” is displayed under “STEALTH” in the menu mode.
Time-Out Timer
The time-out timer disables the transmitter if it is keyed continu-
ously for longer than the programmed time. It can be programmed for
0.5 - 5.0 minutes or disabled entirely. If the transmitter is keyed continu-
ously for longer than the programmed time, the transmitter is disabled,
“TIMEOUT” is indicated on the lower line of the display, and the inter-
cept tone sounds. The timer and tone are reset by releasing the PTT
switch. Ten seconds before time-out occurs, a beep sounds to indicate that
time-out is approaching. There is also a timer that can be programmed to
prevent transmitting for up to one minute after time-out occurs.