TRANSCEIVER OPERATION

2.Enter the index of the desired ID if you know it or

scroll through the list using the and keys until you find the desired ID. Press the CLR key to cancel the call.

3.Press the PTT switch or the ENT key to initiate the call. The display then indicates the alias of the desti- nation radio. Proceed to the bulleted list following the next method for conditions that may occur next.

Direct Entry Method (Full Keypad Models Only)

1.With a SMARTNET/SmartZone channel selected, press and hold the Private Call option switch until a tone sounds (approximately 1 second). The last ID called is displayed, and the private call mode is indi- cated by “ C” in the upper part of the display.

2.Using the 0-9 keys, enter the 6-digit ID of the

mobile unit you are calling. Press the key to erase the last digit entered or press the CLR key to

cancel the call.

3.Press the PTT switch or the ENT key to initiate the call. If the entered ID is invalid, “INVALID” is momentarily displayed and the call is not initiated. If the entered ID is valid, the display indicates the alias of the ID if it matches an ID in your call list. Otherwise, the ID you entered continues to be displayed. Any of the following conditions may then occur:

If the radio you are calling is on the air, telephone type “ringing” is heard for 20 seconds or until the called party answers.

If the called party answers and the call is successful, the person’s voice is heard and the call is carried on the same as a group call. To end the call at any time, press the CLR key.

If the called party does not answer within 20 seconds, “NO ANSWR” is displayed and a continuous tone sounds. End the call by pressing the CLR key.

If the called radio is not in service, no ringing is heard, “NO ACK” is displayed, and a continuous tone sounds. End the call by pressing the CLR key.

If neither your radio nor the radio being called is authorized to make unit-to-unit calls, “REJECT” is displayed and a continuous tone sounds. End the call by pressing the CLR key.

If the called party answers but the radio system is busy, four low tones sound and “BUSY” and “WAIT” are alternately displayed. When the system is no longer busy, the called party auto- matically responds.

If an out-of-range condition exists or the radio system is not in service, “LOST CALL” is displayed and a continuous tone sounds. End the call by pressing the CLR key.

Receiving an Enhanced Private Conversation Call

These calls are automatically received if a SMARTNET/SmartZone channel is selected. Proceed as follows:

1.When a call is received, a recurring unit call tone (three beeps) sounds for up to 20 seconds, and “CALL RCV” and the current channel alias are alternately displayed.

2.To answer the call, press the Private Call option switch and then the PTT switch and begin talking. The private call mode is indicated by “ C” in the upper part of the display. The alias of the incoming call is displayed if the ID is in your call list. Other- wise, the unit ID is displayed. NOTE: If the Private Call option switch is not pressed before the PTT switch, a group call is transmitted on the selected group.

To end the call when the conversation is complete or at any other time, press the CLR key.

If unit-to-unit (private) calls are not permitted (Private Call switch not programmed), press the Call Response option switch, if available, to answer the call.

If the call is not answered within 20 seconds, it is automatically terminated.

If the radio system is busy, four low tones sound and “BUSY” and “WAIT” are alternately

November 1999

 

Part No. 001-7780-500

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EFJohnson 7780 service manual Transceiver Operation