Specifications; Electrical Specifications; Receiver - Nat SM41 Installation And Operation Manual

NPX138 Panel Mount Radio Manual
1.4

Specifications

1.4.1

Electrical Specifications

Input power
Current consumption
Panel lighting
Sidetone output
Microphone
Frequency range
Tone capability
Operating mode
1.4.2

Receiver

Channel increments
Audio output
Sensitivity
Main
Guard
Spurious response rejection
Adjacent channel rejection
NPX138 (all models)
NPX138N (all models)
Wideband
Narrowband
Intermodulation rejection
Hum and Noise ratio
Unsquelched
Squelched
Distortion
Page 1-2
ENG-FORM: 800-0106.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
28 Vdc nominal
0.5 A receive/2.0 A transmit (typical)
0.8 A receive/3.0 A transmit (max.)
28 Vdc, 14 Vdc or 5 Vdc dependent on model.
25 mW @ 600 Ω, adjustable.
Amplified Dynamic or equivalent, 150 Ω
balanced/unbalanced
138.000 MHz to 173.995 MHz
38 standard CTCSS tones
simplex or semi-duplex
5 kHz/6.25 kHz
100 mW @ 600 Ω Bal/Unbal
0.5 µV max. @ 12 dB SINAD
0.5 µV max. @ 12 dB SINAD
70 dB
70 dB min. @ ± 25 kHz
70 dB min. @ ± 25 kHz
60 dB min. @ ± 12.5 kHz
70 dB
> 50 dB
< -80 dBw
< 4% @ rated output
SM41 Rev. 4.00
Nov 10, 2003