Operating Manual

5-10 5100 ES Models II/III Portable Radio Operating Manual March 2008
Conventional Mode Features
2 If the preceding Emergency Hot Mic feature is enabled, the call is automatically
transmitted without pressing the PTT switch. If it is disabled, press the PTT switch and
begin speaking as with a standard call. If the channel is changed, operation continues on
the new channel in the emergency mode.
3 With analog calls, subsequent presses of the PTT switch cause the DTMF emergency
ID to be sent according to the ANI programming (if DTMF ANI is enabled on the
channel). With digital calls, the calls continue to have the emergency bit set.
4 If the Surveillance Mode is enabled (see Section 4.8), all indicators, lights, and tones
are disabled. If “No Receive Activity During Emergency” is programmed, receive
audio, the front panel LED, and receive icons are disabled in the receive mode.
5 To exit this mode, cycle radio power or press and hold the Emergency switch.
5.9.4 External Emergency Switch
5100 ES radio models support the External Emergency feature. A special man-down
switch (currently available only from third-party vendors) is attached to the accessory
connector of the radio. Then if this feature is enabled by programming and the radio is in a
horizontal position for longer than the programmed time (0-63 seconds), an emergency
condition is triggered the same as if the Emergency switch was pressed. The emergency
can be canceled by a press and release of the Emergency switch.
Note Accessories, such as speaker-microphones, cannot be used with this feature.
5.10 Conventional Mode Scanning
Channel scanning features common to all operating modes are described in Sections 4.9
and 4.10. The following information describes features unique to conventional operation.
5.10.1 Transmitting in Scan Mode
Each conventional scan list can be programmed for one of the following modes. These
modes determine if priority sampling occurs and also the channel on which transmissions
occur while scanning. Refer to the next section for more information on priority sampling.
No Priority - No priority channel sampling occurs when the list is selected. The radio
transmits on the selected channel.