Tait International Limited TPEHGD ユーザーズマニュアル

 

On analog channels, your radio may be programmed 
so that you hear all conversations on a channel, or 
your user group may be segregated from other user 
groups by using special signaling. The special 
signaling is used to control the muting and unmuting 
of your radio, so that your radio is muted when other 
user groups are talking and unmuted for members of 
your user group.

There are two muting controls that operate in your 
radio:

■

signaling mute

■

squelch

The radio’s signaling mute only allows the radio to 
unmute if the incoming call carries the tones specific 
to your user group. Your user group may use tones 
that are either audible, subaudible or both.

The radio’s squelch allows the radio to unmute only 
when the strength of the incoming signal is above a 
predetermined threshold. This means that only 
signals of reasonable intelligibility are made audible.