E F Johnson Company 2425720 Benutzerhandbuch
5-16
Viking™ VP600 Portable Radio Operating Manual
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.
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.
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:
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:
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 255 tones can be programmed. Each tone will
send two tones, each of its own frequency and duration.
two tones back-to-back. A maximum of 255 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 give the user the option to choose the desired tone in the
list.
Two Tone and press it. This will give the user the option to choose the desired tone in the
list.
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
desired tone in the list, and press PTT or the
(Menu) button on the portable. Pressing
PTT or the
(Menu) 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,
button,
(Clear), 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.
Tone.