Northern Airborne Technology NPX136D - Manual (Page 37)

NPX136D Series Panel Mount P25 VHF Transceiver
SM68 Installation and Operation Manual
Section 3 Rev: 1.00 Issue 4 Page 3-11
ENG-FORM: 806-0114.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
3.6.5 Squelch Mode, Receive Digital Squelch
Dgtl Sq: Mon, Per Chan
For digital channels, the receive digital squelch mode may be changed globally from monitor (MON) to
per channel (Per Chan). When the receive digital squelch is set to monitor, audio is heard on digital
channels. When the receive digital squelch is set to Per Chan, audio is heard when the received digital
squelch meets the digital squelch setting for the channel.
3.6.6 Power Up Channel
Pwr Up Chan: PrDn, 001-255
The power up channel is the channel the NPX136D tunes to after power up and may be set as the power
down channel (PrDn) or to a specific channel number.
3.6.7 Squelch Setting
Noise Sq: 01-16
The noise squelch setting, for analog channels with no CTCSS or DCS squelch mode, may be set from 1 to
16. Displayed when enabled from the configuration menu. The lower the selected setting value, the lower
the received RF signal may be to disable squelch, and the higher the value, the higher the received RF
signal must be to disable the squelch.
Note : If the noise squelch is set incorrectly, the NPX136D may not receive properly.
3.6.8 Display Menu
Set Disp Menu?
The Display menu is a sub-menu of the Settings menu, and is used to change the way information is
shown on the display.
3.6.8.1 CTCSS Display
CTCSS Disp: Freq, Mtrla
CTCSS tones may be displayed as one of two methods: Motorola Code, or Frequency. See section
3.11.1 for a list of CTCSS tones.
3.6.8.2 Talk Group ID Display
Talk Groups: On, Off
For digital channels, the display of talk group IDs may be turned on or off.
3.6.8.3 Power Up Help
PwrUp Help: On, Off
Display of help screens at power up can be turned on and off.
3.6.8.4 Power Up Status
PwrUp Status: On, Off
Display of status screens at power up can be turned on and off.