E F Johnson Company 2425770 Benutzerhandbuch

Viking Portable 600 Radio Operating Manual

5-15

4 Press (and hold) the PTT switch to talk and release it to listen.

1 Select or scan the channel programmed for the call you want to receive (refer to 

Sections 4.11 and 4.11.5 for more scanning information).

2 When the call is received, press the PTT switch to talk and release it to listen. If 

scanning, responses may occur on the priority, selected, or receive channel as described 
in Section 5.10.2, "Transmitting in Scan Mode".

Five types of analog signaling are offered: 

• Single Tone Encoding

• Five Tone Encoding

• DTMF

• MDC

• GE Star

• Two Tone Encoding

Three features use analog signaling:

• Pre  and  Post  ANI

• Emergency Alarm

• RTT

Dual Tone Multi-Frequency (DTMF) tones can be generated for Automatic Number 
Identification (ANI) and other purposes on conventional analog channels. One of the 
following options may be enabled on each channel:

Pre-Tx ANI - A pre programmed ANI sequence is automatically sent each time the 
PTT switch is pressed.