Operating Manual Part 15

October 2008 5300 ES Series Mobile Radio Operating Manual 4-7
Radio Wide Features
and when it is disabled, “HORN OFF” is briefly displayed. It defaults to the OFF mode
whenever power is turned on.
• If a power turn-off delay is programmed as just described, it is functional during that
delay.
• When activated, it can be programmed to sound for three 1-second beeps or
continuously for 2-90 seconds. It then turns OFF until another Unit call is received.
4.9 Microphone Off-Hook Detect
The microphone hanger can be connected to chassis ground and the radio programmed to
detect an off-hook condition (Hangup Box Monitor selected). The following operation
then occurs when the microphone is taken off-hook:
Conventional Channel Selected - Scanning temporarily halts (if applicable) and the
Monitor Mode described in Section 5.2 is enabled. However, the receiver unsquelches
only if a carrier is detected.
SMARTNET/SmartZone/P25 Trunked Channel Selected - Scanning temporarily
halts if applicable.
If the off-hook condition is not detected (Hangup Box Monitor not selected), the
microphone hook state has no affect on radio operation.
4.10 Surveillance Mode
If the Surveillance mode is programmed, the backlight, all alert tones, and front panel
LED indicator can be disabled individually or totally, based on programming.
The transmit/receive LED indicator, display and keypad backlight, and all alert tones can
be disabled. When setting is enabled, the radio will power up in Surveillance mode with
the selected options active. A function button can also be assigned which will activate and
deactivate surveillance mode at the user’s discretion. It overrides any other programming
of these functions such as a Tone or Backlight option switch.
This feature can be turned ON and OFF by the user via menu selection or by the SURVLC
option switch (if programmed). The user selected mode permanently overrides the
programmed mode if applicable.