Conventional Features; Introduction; Display Mode Selection; Monitoring Before Transmitting - E.F. Johnson Company 5100 SERIES Service Manual

the selected channel is fixed and cannot be changed.
Scanning may also be disabled on some channels.
2. If scanning is enabled, turn it off by pressing the
Scan option switch.
3. Press the Scan Edit option switch. The alias of the
first channel in the scan list is displayed. If scan list
programming or scanning is disabled on the selected
list or channel, "NO LIST" is momentarily
displayed and scan list programming is not avail-
able. Proceed as follows to delete or add a channel:
To Delete a Channel:
4. Select the channel you want to delete by pressing the
and keys.
5. With conventional channels, to delete the displayed
channel and exit this mode, press the CLR ( F3 ) key.
With SMARTNET/SmartZone channels, press the
" 2 " key and then ENT (F4) .
NOTE: The priority channel cannot be deleted (see
Section 2.6.13).
To Add a Channel:
1. Press the Scan Edit option switch. The alias of the
first channel in the scan list is displayed.
2. Enter the two-digit zone and channel number of the
channel you want to add. For example, to add Zone
1/Channel 5, enter "0105". Refer to Section 2.4.8
for more information on zones and channels.
3. With conventional channels, to add the channel to
the scan list and exit this mode, press the ENT ( F4 ).
With SMARTNET/SmartZone channels, press the
" 1 " key and then ENT (F4) .

2.6 CONVENTIONAL FEATURES

2.6.1 INTRODUCTION

The following information describes features
unique to the conventional operating mode (see brief
description in Section 2.4.12). Refer to Section 2.4 for
information on features common to all operating
modes, and to Section 2.7 for information on features
unique to the SMARTNET/SmartZone mode.

2.6.2 DISPLAY MODE SELECTION

If the Displayed Information option switch is
programmed, it is usually the three-position toggle
switch on the top panel. This switch selects the
following conventional channel display modes. If this
switch is not programmed or a SMARTNET/Smart-
Zone channel is selected, the Alias mode is always
used.
Alias - The preprogrammed alphanumeric tag for the
channel is displayed.
Number - The channel number from 1-16 is displayed
as "CHAN xx".
Frequency - The frequency of the selected channel is
displayed in megahertz. The transmit frequency is
displayed in the transmit mode and the receive
frequency is displayed in the receive mode.
NOTE: The channel number can also be determined
by noting the number (1-16) indicated by the index on
the channel selector knob.

2.6.3 MONITORING BEFORE TRANSMITTING

With conventional operation, you may need to
manually monitor the channel before transmitting to
make sure that it is not being used by someone else. If
you were to transmit while someone else was using the
channel, you would probably disrupt their conversa-
tion. Channels are monitored automatically or manu-
ally as follows:
Automatic Channel Monitoring
If the selected channel is programmed for Busy
Channel Lockout feature (consult your system oper-
ator), monitoring is performed automatically. Refer to
the description of this feature in Section 2.6.5 for more
information.
Manual Channel Monitoring
The automatic monitoring just described may not
be programmed or it may occasionally disable the
2-10
OPERATION
September 2001
Part No. 001-5100-001