For an analogue channel, the ▼ /▲ keys can be used to select either Monitor or
Normal squelch mode.
For each channel type, after selecting the required squelch mode, press the OK key to
confirm the selection and return to the default channel screen.
Press the Back or ‘M’ key to return to the next highest menu level.
5.3.1. Digital Operation
5.3.1.1. Channel Monitor Mode
When Monitor squelch is selected, the radio will receive any encrypted or clear P25
digital voice signal. The NAC is not checked. An ‘M’ icon on the display indicates
Monitor mode.
5.3.1.2. Digital Channel Normal Mode
When Normal squelch is selected, the radio will receive all encrypted or clear digital
transmissions with the correct NAC. Reception is not conditional upon the Talk Group
or Unit ID. An “N” icon on the display indicates Normal mode.
5.3.1.3. 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 mode.
5.3.2. Analogue Operation
5.3.2.1. Channel Monitor Mode
When Monitor squelch is selected, the radio will receive any Analogue voice or P25
digital signals. Digital NAC or Analogue Continuous Tone Controlled Selective Squelch
(CTCSS) is not checked. An ‘M’ icon on the display indicates Monitor mode.
5.3.2.2. Analogue Channel Normal Mode
When Normal mute is selected, the radio will receive correctly addressed Analogue
radio transmissions and all decryptable or clear digital transmissions. An ‘N’ icon on
the display indicates Normal mode. Normal can only be selected if CTCSS/Digital
Coded Squelch (DCS) is programmed for that channel.
5.4. MUTE ADJUST MENU
From the main channel screen, press the ‘M’ key to enter Menu Mode.
Use the ▼ /▲ keys to scroll through menu options and, with the Setup menu option
displayed, press the OK key to access the Setup sub-menus.
Doc Number: TNM-U-E-0055 ISSUE 4.0 Page 33
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