Operating Manual

March 2008 5100 ES Models II/III Portable Radio Operating Manual 4-5
Radio-wide Features
4.4 Time-Out Timer
The time-out timer disables the transmitter if it is keyed continuously for longer than the
programmed time. It can be programmed for 15-225 seconds or it can be disabled by
programming 0 seconds.
If the transmitter is keyed for longer than the programmed time, the transmitter is disabled,
a continuous tone sounds, and “TX Timeout” is displayed. Five seconds before time-out
occurs, a warning beep sounds to indicate that time-out is approaching. The timer and tone
are reset by releasing the PTT switch.
A different time can be programmed for each system, and the timer can be enabled or
disabled on each conventional channel. With conventional channels, a penalty time may
also be programmed that prevents transmissions for a certain time after the transmitter is
disabled (see Section 5.5).
One use of this feature is to prevent a channel from being kept busy for an extended period
by an accidentally keyed transmitter. It can also prevent possible transmitter damage
caused by transmitting for an excessively long period.
4.5 Home Zone / Channel Select
If the Home Zone option switch or menu parameter is programmed, it selects the pre
programmed home zone. The selected channel is displayed if the channel switch is
enabled, and the pre programmed home channel is selected if it is disabled. A secondary
Home Zone, Home2, may also be programmed.
Pressing and holding the Home Zone option switch until a tone sounds makes the
currently selected zone the new Home zone. The radio is also programmed so that either
the home or last selected zone is selected when power is turned on. Refer to Section 3.3 for
more information.
4.6 Power Output Select
Each conventional channel and SMARTNET/SmartZone and P25 Trunked system can be
programmed for high, low, or switchable power. If the High/Low Power option switch or
menu parameter is programmed and selectable power is programmed on the current
channel or system, high and low transmitter power can be selected. All models support
high and low power. The low power level is typically 1 watt and the high power level the
rated power output of the radio (2.5 - 5 watts, depending on frequency band).