EFJohnson 7780 Two-Way Radio User Manual


 
TRANSCEIVER PROGRAMMING
3-10
November 1999
Part No. 001-7780-500
Timers
Tx Time-Out Timer
- This timer limits the length of
transmissions (Section 2.3.9). Times up to 3 minutes,
45 seconds in 15-second steps can be programmed.
Penalty Timer
- This timer disables transmitting after
the time-out timer expires (Section 2.4.7). Times up
to 3 minutes, 45 seconds in 15-second steps can be
programmed.
Conversation Timer
- This timer limits the total
length of a conversation (Section 2.4.8). Times up to
7.5 minutes in 0.5-minute steps can be programmed.
Keypad Selectable CTCSS/DCS
- Selects if CTCSS/
DCS (Call Guard) squelch codes can be reassigned
using the keypad (see Section 2.4.6).
Busy Channel Override
- Selects if the busy channel
lockout feature can be overridden by quickly releasing
and then pressing the PTT switch (see Section 2.4.5).
Conventional System Scan List Screen
Scan List Button
Clicking the Scan List button displays the
preceding screen which is used to program the conven-
tional scan lists described in Section 2.4.11. Only Scan
List 1 is available with limited keypad (3-key) models.
NOTE: The conventional scan lists cannot be
programmed until all the conventional channels are
programmed. Therefore, first program the channels as
described in Sections 3.5.3 and 3.5.4.
To modify a list, click and the
screen which follows is displayed. Select the desired
scan list in the box on the top and then select the zone
and the channels from that zone to be included. Repeat
for each zone. Do this for each list programmed. The
button deletes the selected channel(s)
from the scan list.
Conventional System Modify Scan List Screen
The following parameters are programmed in the
Conventional System Scan List Screen on the left.
Keypad Editing
This function selects if the user is allowed to edit
the scan list. This requires the Scan Edit option switch
as described in Section 2.4.11. User editing can be
enabled and disabled on each scan list.
Scan Mode
Sets the channel on which transmissions occur
when the PTT switch is pressed while scanning. A
different mode can be programmed for each scan list.
In addition, it selects if priority sampling is used and