E F Johnson Company 2425372 사용자 설명서

To place a standard group call:

1 Turn power on and set the volume as described in Section 3. Select the channel 

programmed for the talk group you want to call (see Section 3.4.2).

2 If the talk group is programmed for encryption and is not strapped to Clear or Coded, 

select the desired mode by pressing the C/S (Clear/Secure) option switch. The status of 
that switch is ignored if the talk group is strapped to Clear or Coded. Refer to 
Section 11.3 for more information.

3 Press the PTT switch and begin talking. An optional talk permit tone may sound to 

indicate when talking can begin. Other indications that may occur are as follows:

If in the secure mode and your radio is not programmed with the proper encryption 
key, “KEYFAIL” is displayed and the call must be made in the clear mode or the 
proper key must be programmed.

If the busy tone sounds and “BUSY” is displayed, the system is busy. Release the 
PTT switch and wait for the call back tone to sound. Then press the PTT switch 
within 3 seconds.

If a continuous tone sounds and “NO SYS” is displayed, you may be out-of-range. 
Drive closer or away from shielding objects and try again.

If your unit ID is invalid, the call is being made to an invalid group ID, or group calls 
are not enabled, “DISABLED ID” is displayed and an alert tone sounds.

If an attempt is made to change an analog channel from the clear to the secure mode 
and there is no available secure channel, “NO SEC” is flashed, an error tone sounds, 
and the call is terminated.

If an attempt is made to change an analog channel from the secure to clear mode, 
“SEC ONLY” is displayed, an error tone sounds, and the call is terminated. (Calls on 
digital channels can be changed if they are not strapped to clear or secure).

If the Secure mode is selected by the C/S (Clear/Secure) option switch and an 
attempt is made to transmit on a channel strapped as Clear, “Clear Only” is displayed 
and the transmitter is disabled. Likewise, if the Clear mode is selected and the 
channel is strapped as secure, “Secure Only” is displayed and the transmitter is 
disabled.

To receive a standard group call:

Calls are received on only the talk group and/or announcement group programmed for 
the selected channel (with scanning disabled). When the selected channel is 
programmed with both Talk and Announcement groups, only the Talk and 
Announcement group IDs are detected. Other IDs in the Announcement group are 
detected only if no talk group is programmed.

When a group call is received, the alias of the selected channel is displayed. The radio 
can be programmed so that the following are also displayed for 0.5-7.0 seconds or 
continuously during the call.

PTT ID- The unit ID of the mobile placing the call is displayed.