Midland Radio Corporation PL5161 Manual Do Utilizador

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VIII RADIO FUNCTIONS 
 
VIII.1 TONE SIGNALING 
 
To help block out unwanted calls to your radio, the PL5151 and PL5164 can be programmed by your radio 
communications 
Dealer to look for tones. 
 
VIII.2 SCAN MODES 
Scanning is a Dealer programmable feature that allows you to monitor a number of channels. Your radio 
communications Dealer will help you define a scanning mode and your channel "scan list". 
 
Once the scan list has been established, initiate scan by pressing the SCAN button. The SCAN icon will show in the 
upper left corner of the display to confirm radio scanning. 
 
VIII.3  NORMAL CHANNEL SCAN 
    If a conversation is detected on any of the channels in the scan list, the radio will stop on that channel and you will 
be able to hear the conversation. In normal scan, you will be able to transmit on that active channel during the 
programmable scan delay time. (The scan delay time is the amount of time the radio will stay on that channel once 
activity has ceased. Dealer programmable, 4 - 7 seconds is typical).  
 
The radio will resume scanning once the scan delay time has expired, and will continue to scan until the channel is 
changed. In scan mode, if radio power is turned off and on, the radio will return to the scan mode until a channel is 
changed.  
 
VIII.4 PRIORITY SCAN TX 
  A single channel may be programmed as the "Priority" channel. The radio will constantly monitor this channel 
while scanning and when stopped on an active channel. If a call is detected on the priority channel, the radio will 
automatically move to, and remain on, the priority channel. Priority channel activity takes precedence over all 
other conversations. During the scan mode if a PTT is initiated the radio will transmit on the priority channel. 
 
VIII.5   
PRIORITY LOOK BACK SCAN  
  A single channel may be programmed as the "Priority" channel. The radio will constantly monitor this channel 
while scanning and when stopped on an active channel. If a call is detected on the priority channel “during a 
conversation”, the radio will automatically move to, and remain on, the priority channel. Priority channel activity 
takes precedence over all other conversations.  
 
VIII.6   
PRIORITY SELECT SCAN  
  The selected channel becomes the priority channel. As you change the channel that channels frequency will 
become your new priority channel. Priority channel activity takes precedence over all other conversations.  
 
VIII.7   
VACANT CHANNEL SCAN  
  The radio will automatically scan for the first open channel. Once a channel is found normal scan operation will 
take place. All radios you intend to communicate must be programmed for this same scan function. 
 
VIII.8 NUISANCE DELETE 
During receiving a signal or scan delay time, if the monitor button is pressed, the current receiving channel is 
deleted in scan list and is no longer scanned. When the power is turned off and on, the deleted channel is restored to 
the scan list. 
 
VIII.9  BUSY CHANNEL LOCKOUT 
When the RX signal is being received, the radio’s transmitter is disabled. Dealer programming makes this feature 
active or disabled.  
 
VIII.10 
MARKED IDLE
 
When used in conjunction with busy channel lockout, the transmitter is allowed to operate as long as valid RX tone 
is received. Dealer programming makes this feature active or disabled.