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Nat SM41 Installation And Operation Manual

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Contents
  1. important information
  2. Table Of Contents
  3. Introduction
  4. Specifications
  5. Transmitter
  6. Environmental Specifications
  7. Special Options
  9. Notes
  10. Antennas
  11. Mechanical Mounting
  12. Post Installation EMI Test
  14. Initial Operating Display
  15. Function Controls
Nat SM41 Installation And Operation Manual Manual pdf 20 page image
NPX138 Panel Mount Radio Manual SM41 Rev. 4.001.4 Specifications1.4.1 Electrical SpecificationsInput power 28 Vdc nominalCurrent consumption 0.5 A receive/2.0 A transmit (typical)0.8 A receive/3.0 A transmit (max.)Panel lighting 28 Vdc, 14 Vdc or 5 Vdc dependent on model.Sidetone output 25 mW @ 600 Ω, adjustable.Microphone Amplified Dynamic or equivalent, 150 Ωbalanced/unbalancedFrequency range 138.000 MHz to 173.995 MHzTone capability 38 standard CTCSS tonesOperating mode simplex or semi-duplex1.4.2 ReceiverChannel increments 5 kHz/6.25 kHzAudio output 100 mW @ 600 Ω Bal/UnbalSensitivityMain 0.5 μV max. @ 12 dB SINADGuard 0.5 μV max. @ 12 dB SINADSpurious response rejection 70 dBAdjacent channel rejectionNPX138 (all models) 70 dB min. @ ± 25 kHzNPX138N (all models)Wideband 70 dB min. @ ± 25 kHzNarrowband 60 dB min. @ ± 12.5 kHzIntermodulation rejection 70 dBHum and Noise ratioUnsquelched > 50 dBSquelched < -80 dBwDistortion < 4% @ rated outputPage 1-2 Nov 10, 2003ENG-FORM: 800-0106.DOTCONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
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SM41
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