E.F. Johnson Company 4100 SERIES Operating Manual page 42

Digital/analog portable radio
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CHAN SPC (Analog Only) - Selects either wide or
narrow band channel spacing on analog channels only.
Press the Up/Down switch to select "WIDE" or
"NARROW", and when the desired setting is
displayed, store it by pressing the F2 switch.
NOTE: The next two parameters are programmed only
if the radio is programmed for encryption.
Key Select - Selects the encryption key for the
channel if applicable. The key storage location of 0-15
or 1-16 is displayed. If no keys are programmed, "No
Keys" is displayed. Refer to Section 10.2 for more
information.
Strapping - Selects the encryption strapping mode for
the channel as Clear, Secure, or Switched. Refer to
Section 10.3 for more information.
TG ID (P25 Only) - Selects the talk group for the
selected channel. Press F2 to display the current talk
group ID and then press F2 again to enter a different
ID from 1-65,535. This number must be entered
directly using the DTMF keypad.
Channel Alias - Programs the alias for the channel
(DTMF keypad models only). Up to ten characters can
be entered. Press F2 once to display the current alias
and then press it again to program a new alias. Alpha-
numeric characters are programmed using the 0-9
keys. Pressing a key once enters the first letter on the
key and then pressing it successive times enters the
letters and the number on the key. For example, press
the "2" key twice to enter "B". Press the F2 key to
move to the next position or press it twice to enter a
space.
TX TIMER - Enables or disables the time-out timer
on the current channel. Press the Up/Down switch to
select the on and off mode, and when the desired
setting is displayed, store it by pressing the F2 switch.
TX POWER - Selects the desired power output level.
Press the Up/Down switch to scroll through the
CONVENTIONAL MODE FEATURES
following choices. When the desired setting is
displayed, store it by pressing the F2 switch.
Power High - High transmit power
Power Low - Low transmit power
Power SW - Switchable power selectable by the
High/Low power switch. This choice is not avail-
able if that switch is not programmed.
CTCSS/DCS Squelch Control (Analog Channel)
TX CODE - Programs the transmit Call Guard
(CTCSS/DCS) code. The currently selected code
and is initially displayed. Press the Up/Down
switch to select the desired code type (CTCSS
analog or DCS digital). Then press F2 to select it
and enter the code number similar to programming
a channel frequency as just described.
RX CODE - Selects the receive codes the same as
TX CODE above.
NAC Squelch Control (Project 25 Channel)
TX NAC - Programs the transmit Network Access
Code (NAC) which can be any number from
0-4095. With later models, this number is displayed
in hexadecimal from 000-FFF. The procedure is
similar to programming a TX FREQ just described.
If an invalid code is entered, a beep sounds,
"INVALID" is briefly displayed, and the code must
be re-entered.
RX NAC - Selects the receive NAC the same as
RX NAC above.
Transmit Type (P25 Mixed Mode Only) - If the
selected channel is a mixed mode, analog and P25
channel, this selects the transmit type. Either Analog
or Digital (P25) can be selected. This then determines
if a Tx Code or Tx NAC is programmed above.
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