User's Manual

Table Of Contents
Viking Portable 600 Radio Operating Manual 5-17
Conventional Mode Features
5.12.4 Five-Tone Signaling
A single transmission consists of five separate tones transmitted sequentially with an
optional inter-tone pause between tones. If Five-Tone is selected as the RTT type, then
Five-tone shall also be used as the signaling type for conventional analog emergencies.
The first four tones are used for unit identification and the fifth tone is used for status.
No two adjacent tones shall be the same frequency. When two identical digits follow each
other, the second shall be transmitted as the “Repeat” tone.
Five Tone signaling can also be used for Pre Post ANI and Emergency Alarm Signaling.
Fifth Tone Status values are:
Tone 1 – Normal Call
Tone 9 – Emergency Call
Tone 2 – Normal Secure Call
Tone 8 – Emergency Secure Call
5.12.5 GE Star
GE Star signaling is implemented for transmit functionality. Two programming modes are
available:
Standard format (normal ANI for pre- and post- ANI and RTT and emergency).
NYSP format (emergency)
5.12.6 Two Tone Encoding
The Two Tone Encoder operates the same as the Single Tone Encoder except that it sends
two tones back-to-back. A maximum of 64 tones can be programmed. Each tone will send
two tones, each of its own frequency and duration.
The user can activate Two Tone in several manners. The first is to program a button for
Two Tone and press it. This will send the current, active Two Tone, which is defaulted to
the first tone in the Two Tone list upon profile download.
The second is to program Two Tone to the menu, select it from the menu, scroll to the
desired tone in the list, and press PTT or the select button (F2 on the portable, pressing the
rotary knob on the mobile). Pressing PTT or the select button will send the tone and store
it as the active Two Tone. The Two Tone List is exited if the Menu Mode Timer expires, if
the user presses the exit button (F1 on the portable, Exit button on the mobile), or if the
user presses the button programmed for Two Tone while in the Two Tone List. Exiting the
menu will not save the current Two Tone as the active Two Tone.
Preliminary Draft 3/9/12