E F Johnson Company 2425770 사용자 설명서

Viking Portable 600 Radio Operating Manual

3-13

• If the radio has Soft Power Down mode enabled and the radio gets inhibited, the radio 

will ignore the Soft Power Down settings and power off normally. 

• Downloading a codeplug with Armada will uninhibit a radio

• Inhibit is a global setting so you can inhibit a radio with one method and uninhibit it 

using another.

The user can program a menu item, or function button, for squelch adjust. While on a 
conventional analog channel without emergency or scan active, the user can select the 
programmed button or menu item for squelch adjust. The current squelch setting will 
show on the display. Using the up and down buttons on the portable radio, the user can 
adjust the squelch setting to a desired level from -7 to +7.  Increasing the value towards +7 
causes the squelch to open sooner for weaker signals while decreasing towards -7 has the 
opposite effects. Pressing the select button will store the new squelch setting and return 
the user to the main display.

The squelch level is preset and may not require readjustment. However, if the squelch 
threshold needs to be changed on a conventional analog channel, it can be changed in the 
same way as though using keypad programming if available. The squelch level is preset 
during alignment. If the keypad programming feature is available (see Section 5.14), the 
squelch threshold can be changed by the user on each conventional analog channel.

Transmitting can be disabled on each conventional, SmartNet, SmartZone, and P25 
Trunking channel so that the channel is monitor-only. When transmitting is attempted on a 
receive-only channel, “Rx Only” is displayed and an error tone sounds. This is 
programmed for each radio.