User's Manual

5-6 Viking™ VP600 Portable Radio Operating Manual
Conventional Mode Features
1 Press the Squelch Select List option button or select the Sqlch Code menu mode
parameter. Then press the Up/Down buttons to select the desired code. The display
indicates “SQxx” where, “xx” is the selected code from 1-255. The code number and
actual code are alternately displayed (NACs are displayed in hexadecimal).
2 To select the displayed code and return to the normal display, press the (Menu)
button.
3 To check which code is selected, press the Squelch Select List button once to display
the current selection and then again to return to normal operation.
4 To return to the normal selective squelch codes, select “Default” in this mode. As
previously described, the normal codes are also automatically reselected whenever
radio power is cycled or a talk-around channel is selected.
5.5 Penalty Timer
A penalty timer may be programmed on conventional systems to prevent transmissions for
the programmed time after the time-out timer disables the transmitter (see Section 4.6,
"Time-Out Timer"). The penalty timer can be programmed for the same times as the time-
out timer, and timing starts when the PTT switch is released. If the PTT switch is pressed
while the timer is running the timer stops, and continues when the PTT switch is released.
When the penalty timer expires, a beep sounds and the transmitter can then be keyed.
5.6 Conversation Timer
A conversation timer can be programmed on conventional systems in addition to the time-
out timer (see Section 4.6, "Time-Out Timer"). This timer limits the total length of a
conversation rather than just the length of each transmission as with the time-out timer.
The following is more information on this timer.
• It can be programmed for times up to 7.5 minutes.
• It is reset when the time between transmissions exceeds the time programmed for the
penalty timer.
• A warning beep sounds five seconds before this timer disables the transmitter.
• When this timer disables the transmitter, a continuous tone sounds and the red transmit
indicator turns off. The PTT switch must then be released until the penalty timer expires
(indicated by a beep).