Manually Entering A Group Id (System Model Only) - Ericsson TRUNKED MDX Operator's Manual

If the group you wish to transmit on is not in the list, a properly
programmed System Model MDX has the capability of operating on a
user selected group ID.
2. Press and hold down the PTT button.
3. You will hear a short beep (unless the radio is programmed to mute
the beeps) indicating that you have access to the system. When you
hear the beep, you may begin your message. (Note: If you hear two
or more tones or a continuous tone, the system may be busy, your
request has been placed in queue, or your call request has been denied
for some reason. Refer to ALERT TONES for more details.)
4. After you have finished your call, releasing the PTT button ends the
call automatically.
In rare instances, several low pitched, fast "chirps" will be heard before
the Call Originate tone sounds. This is caused by your radio
automatically re-trying to gain access to the system after the first
attempt failed (Auto-Retry). This normally occurs in fringe areas and
in heavily used systems. The Auto-Retry is one of the features utilized
by the radio system to provide reliable communications under adverse
conditions.

MANUALLY ENTERING A GROUP ID (System Model Only)

1. Press the GRP button and observe "GID ENTR" in the display
2. Enter the group ID number using the numeric keypad. (Valid range
1-2047).
3. Press the GRP button again and observe "GID nnnn" (where nnnn is
the entered number) in the display. This new group will replace the
first group in the list.
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