Main Receiver; Guard Receiver (Npx136D-X70 Only) - Nat NPX136D Series Installation And Operation Manual

NPX136D Series Panel Mount P25 VHF Transceiver
Channels
Zones
Sub-audible signalling
Remote Interface
RF Input/Output Impedance
Voice Digital Mode
Frame Re-sync Interval
Error Correction Algorithms
Channel Increments
Channel Separation
Scan Capability
Scan Rate
1.4.2

Main Receiver

Reference Sensitivity (12 dB SINAD)
Reference Sensitivity (5% BER)
Adjacent Channel Rejection
Spurious Response Rejection
Intermodulation Rejection
Audio Output Power
Audio Dynamic Range
Audio Frequency Response
Audio Distortion
Conducted Spurious Emissions
FM Hum and Noise
1.4.3

Guard Receiver (NPX136D-x70 only)

All specifications are identical to the main receiver with the following exception.
Audio Output Power, minimum:
Main and Guard cannot be 455 kHz from each other due to 2nd IF interference
Note:
Section 1 Rev: 1.00
ENG-FORM: 800-0115.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM68 Installation and Operation Manual
255 max. Plus GD1 and GD2
16 max.
CTCSS - 42 tones from 67.0 to 254.8 Hz
CDCSS - 83 data patterns
RS232C Data, to PC for Channel Loading and Firmware
Loading
50 ohms
IMBE 4.4 kb
180 ms
RS / Golay / Hamming
2.5 / 6.25 kHz
12.5 / 25 kHz
16 channels max. 1 home, 1 priority, 14 list.
8 channels per second.
≤-113 dBm
≤-113 dBm
≥70 dB (25 kHz BW)
≥70 dB
≥70 dB
100 mW (600 ohms) rated
≥37 dB
300 – 3000 Hz, Standard: EIA Std. -6 dB
(+1/-3 dB) / oct de-emphasis.
300 – 500 Hz, Standard with an additional
+6 dB/oct permitted.
2500 – 3000 Hz, Standard with an additional
-12 dB / oct permitted.
4% typical (10% max.)
≤-57 dBm
≥34 dB (12.5 kHz BW)
≥40 dB (25 kHz BW)
≤-57 dBW squelched
10 mW (adjustable)
Issue 4 Page 1-2