E F Johnson Company 2425770 Benutzerhandbuch

4-6 

Viking Portable 600 Radio Operating Manual

A function recall button or menu item can be programmed so that if the user presses this 
button or activates its menu item, the radio enters Function Recall mode, and the display 
flashes “Fnc Recall”. Pressing any button displays the function assigned to that button for 
a specified period. If that same button is pressed again during the specified period, the 
radio performs the function assigned to that button and then exits Function Recall mode.

Function Recall mode can also be exited by pressing the Function Recall button once 
(without pressing another function button).

The time-out timer disables the transmitter if it is keyed continuously for longer than the 
programmed time. It can be programmed for 15-225 seconds or it can be disabled by 
programming 0 seconds.

If the transmitter is keyed for longer than the programmed time, the transmitter is disabled, 
a continuous tone sounds, and “TX Timeout” is displayed. Five seconds before time-out 
occurs, a warning beep sounds to indicate that time-out is approaching. The timer and tone 
are reset by releasing the PTT switch.

A different time can be programmed for each system, and the timer can be enabled or 
disabled on each conventional channel. With conventional channels, a penalty time may 
also be programmed that prevents transmissions for a certain time after the transmitter is 
disabled (see Section 5.5, "Penalty Timer").

One use of this feature is to prevent a channel from being kept busy for an extended period 
by an accidentally keyed transmitter. It can also prevent possible transmitter damage 
caused by transmitting for an excessively long period.