SRP9100 RADIO P25 – OPERATING INSTRUCTIONS
4.2.2 Squelch
This menu allows the channel’s default squelch mode to be modified.
If the selected channel is changed or the radio is switched off, the channel’s default squelch
setting will be restored.
Press the “
OK
” key for the “
Squelch
” Menu
P25 Squelch Screen
For a P25 digital channel, pressing the
▼
and
▲
keys will allow selection of either
Monitor
,
Normal
or
Selective
squelch mode.
For an analogue channel, pressing the
▼
and
▲
keys will allow selection of either
Monitor
or
Normal
squelch mode.
Digital Channel Monitor Mode:
The radio will receive any decryptable or clear P25 digital voice signals. The Network Access
Code (NAC) is not checked. An “M” icon on the display indicates monitor mode.
Digital Channel
Normal Mode:
When
Normal
squelch is selected, the radio will receive all decryptable or clear digital
transmissions with the correct NAC. Reception is not conditional upon the talkgroup or Unit
ID. An “N” icon on the display indicates normal squelch.
Digital Channel
Selective Mode
If
Selective
squelch is chosen, the radio will only receive decryptable or clear digital
transmissions with the correct NAC and Talk Group ID (TGID) or correct NAC and Unit ID.
An “S” icon indicates selective squelch.
© TMC Radio 2007
Page 16
TNM-U-E-0073 1.1b
