Conversation Timer; Repeater Talk-Around; Displaying Transmit And Receive Frequency; Emergency Mode - E.F. Johnson Company 5100 Series Operating Manual

does not key. When the penalty timer expires, a beep
sounds and the transmitter can be keyed.

Conversation Timer

A conversation timer can be programmed on
conventional systems in addition to the time-out timer
described on page 12. This timer limits the total length
of a conversation rather than just the length of each
transmission as with the time-out timer. More informa-
tion on this timer follows:
•
It can be programmed for times up to 7.5 minutes.
•
It is reset when the time between transmissions
exceeds the time programmed for the penalty timer
just described.
•
A warning beep sounds 5 seconds before this timer
disables the transmitter.
•
When this timer disables the transmitter, a contin-
uous tone sounds and the red transmit indicator
turns off. The PTT switch must then be released
until the penalty timer expires (indicated by a beep).

Repeater Talk-Around

Normally, all transmissions go through a repeater
which usually increases range. However, there may be
times when you are out of range of the repeater and
therefore unable to talk to anyone even though the
mobile being called is only a short distance away. To
allow communication in this situation, repeater talk-
around can be selected. Transmissions then occur on
the receive frequency which permits direct mobile-to-
mobile communication.
Repeater talk-around can be selected if the RTA
option key or menu parameter is programmed. When
talk-around is enabled by this key,
This feature remains enabled during scanning, and the
selected mode does not change when another channel
is selected or power is cycled. Talk-around is available
on conventional channels only.

Displaying Transmit and Receive Frequency

If the Displayed Information option key or menu
parameter is programmed, it can be used to display the
channel frequency in megahertz. Pressing this key
toggles between displaying the standard channel alias
and the channel frequency. The receive frequency is
displayed when receiving and the transmit frequency is
displayed when transmitting. This feature is available
on conventional channels only.

Emergency Mode

can be programmed to alert a dispatcher or someone
else of an emergency condition. It is available on
conventional digital (Project 25) and/or SMARTNET/
SmartZone channels, but not conventional analog
channels. If you have this function, consult your
system operator for more information on how it is
used in your application.

Conventional Mode Scanning

ating modes are described starting on page 13. When
the transmitter is keyed with scanning enabled, the
transceiver can be programmed so that transmission
always occurs on one of the following channels:
•
Selected channel
•
Priority channel (see following)
•
Channel of the call if a response is made before
scanning resumes.

Priority Channel Sampling

General
that messages on the priority channel are not missed
while listening to a message on some other channel.
The transceiver can be programmed so that the priority
is displayed. channel is a fixed channel programmed in the current
scan list, the currently selected channel, or not used.
When scanning and the selected channel is a fixed
priority channel,
dard conventional scanning. It does not occur with
radio-wide scanning, when listening to any type of
SMARTNET/SmartZone call, or when transmitting. A
series of "ticks" may be heard when the priority
channel is sampled while listening to a message on
some other conventional channel.
18
CONVENTIONAL MODE FEATURES
The Emergency option key or menu parameter
Channel scanning features common to all oper-
The priority channel sampling feature ensures
is indicated in the display.
Priority channel sampling occurs only with stan-
May 2002
Part No. 002-5100-100