E F Johnson Company 2425770 Benutzerhandbuch

Seite von 161
Viking Portable 600 Radio Operating Manual
4-7
Radio-wide Features
4.7
Home Channel Select
If the Home option button is programmed, pressing it selects the preprogrammed Home 
channel. This provides a quick way of returning to a frequently used channel. Pressing and 
holding this button until a tone sounds makes the currently selected channel the new 
Home. (The radio can be programmed to ignore this press-and-hold function). The radio is 
also programmed so that either the Home or last selected channel is automatically selected 
when power is turned on. A secondary Home Zone or Home Channel 2, may also be 
programmed.
Note
The radio can be optionally programmed so that pressing and holding the Home option 
button causes the radio to switch to the existing Home or Home 2 instead of making the 
current selection the new Home. 
Home Zone and Home Channel cannot both be set to "Selected" simultaneously. The same 
applies for Home Zone 2 and Home Channel 2. If Home or Home 2 is set to "Selected," 
then Home Channel or Home Channel 2, respectively, will populate with channels 1 to 
256.
If the user programs Home Channel or Home Channel 2 to a channel that is 
unprogrammed in the "Selected" zone, the display will show "Unprogrammed" and the 
unprogrammed channel tone will be heard. The radio is not in a locked state. Changing the 
channel or zone to a valid channel will allow normal radio operation.
4.8
Power Output Select
Each conventional channel and SmartNet/SmartZone and P25 Trunked system can be 
programmed for high, low, or switchable power. If the High/Low Power option button or 
menu parameter is programmed and selectable power is programmed on the current 
channel or system, high and low transmitter power can be selected. All models support 
high and low power. The low power level is typically 1 watt and the high power level the 
rated power output of the radio (3 - 5 watts, depending on frequency band).
The new level is flashed in the display as either “Hi Power” or “Low Power”. If selectable 
power is not permitted on the current channel, “Fixed Low” or “Fixed High” is flashed 
and no change occurs. The selected power level for a channel or system is permanent until 
it is manually changed again. The low power mode may be automatically selected during a 
low battery condition (see Section 3.4.2, "Low Battery Indication").
Preliminary Draft 3/9/12