Northern Airborne Technology NPX136D - Manual (Page 32)

NPX136D Series Panel Mount P25 VHF Transceiver
SM68 Installation and Operation Manual
Section 3 Rev: 1.00 Issue 4 Page 3-6
3.4 Displays - Normal Operating Mode
ENG-FORM: 806-0114.DOT
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Display Type Frequency Tone/Squelch Number
Channel Number
Tone/Squelch Flag Channel Name Modulation Type
Scan
Flag
The upper row of the display contains the channel number, channel name and various flags. The
channel's tone/squelch flag shows the state of analog tones or digital squelch mode. The channel's
modulation type flag shows the modulation mode. The scan flag shows if the current channel is in the
scan list or is a priority scan channel.
The lower row of the display contains current channel information for one of the following: the receive
information, the transmit information, the current zone (if zones are turned on), and the receive or transmit
talk group id (if talk group display is turned on).
3.4.1 Display Details
3.4.1.1 Channel Number:
Channel numbers for the main receiver are 001 – 255. This may be changed to include letters and other
characters if the display settings channel number mode is set to alphanumeric. Channel numbers allowed
for the guard receiver are GD1 and GD2.
3.4.1.2 Tone/Squelch Flag
The tone squelch flag shows the status of analog tones and digital squelch as set from the settings menu.
This flag is shown as follows:
" "
Blank, for analog tones off. (Not applicable for digital channels.)
"–" Dash, for analog tones set to transmit only or digital squelch set to monitor.
"=" Equal Sign, for analog tones on or digital squelch set to per chan.
3.4.1.3 Channel Name
The channel name is a nine-character alphanumeric name for the channel.
3.4.1.4 Modulation Type
The modulation type for the current channel may be: W for wideband analog; N for narrowband analog;
D for P25 Phase I digital.