NPX138N Panel-mount FM Transceiver | Multimode, Synth Guard Receiver, Narrow Band

Product Description

This USFS compliant radio was specifically designed to fulfill contract required functionality. The synthesized frequency-agile transceiver allows easy access to all pre-programmed channels and the ability to modify or add channels on the fly.

At less than 2"" high and 3 lb., NAT's self-contained panel mount NPX138 radios are designed as stand-alone units for the single mission user. The lightweight state-of-the-art compact design is perfect for the space and weight restricted environment of a helicopter or light fixed-wing aircraft.

Each of the 100 memory channels available can store a receive frequency with CTCSS tone, a transmit frequency with CTCSS tone, scan function and an alpha-numeric identifier on a 32 character LED display. Transmit power of 1 or 10 watts is easily selectable from the front of the NPX.

The optional synthesized two channel guard receiver allows front panel tuning of user frequencies, ensuring communication integrity during complex flight operations. Each individual channel is operator selectable for wide (5 kHz deviation) and narrow band (2.5 kHz deviation) operation. DTMF encoding and direct keyboard programming can be added using NAT's DTE12.

Panel lighting is available in either 28, 14 or 5 VDC controlled through the aircraft dimmer bus. NVG compatible lighting is optional.

Specifications

• Panel Lighting:
  5 VDC, 14 VDC, or 28 VDC, NVG optional
• Temperature:
  -30°C to 60°C
• Cooling:
  thermostat controlled internal fan
• Remote Interface:
  RS232C serial data
• Channel Increments:
  5 kHz / 6.25 kHz
• Tone Capability:
  38 CTCSS tones 67.0 Hz – 250.3 Hz
• Operating Mode:
  F3E simplex or semi-duplex
• Audio Output:
  100 mW/600Ω (balanced/unbalanced)
• Microphone:
  Amplified dynamic or equivalent
• Sidetone:
  Output 25 mW/600Ω, nominal
• RECEIVER:
• Reference Sensitivity:
  0.5 uV max. / 12 dB SINAD
• Adj. Channel Sel.:
  70 dB (25 kHz) 60 dB (12.5 kHz)
• Intermodulation:
  70 dB
• Spurious Response:
  > 70 dB
• Hum and Noise:
  < -80 dBW squelched
• Frequency Response:
  +1/-3 to 6 ddB/octave, de-emphasis
• Rx Recovery Time:
  250 milliseconds, max.
• TRANSMITTER:
• RF Power Output:
  1 watt or 10 watt selectable
• Duty Cycle:
  20% at 10 watt
• Conducted Spurious:
  -64 dBc (high power) -55 dBc (low power)
• Frequency Stability:
  ±0.0003%
• Distortion:
  < 4%, max.
• Rated Deviation:
  ±2.5 or ±5.0 kHz (NPX138N) ±5.0 kHz (NPX138, NPX066)
• Modulation Limiting:
  85% of rated deviation
• APPROVALS:
  TC STC #SA99-211 TC STC #SH05-12 FAA STC #SA01170NY FAA PMA
• Install Kit:
  NPX-IKC (Crimp)

Product Codes

• Mfr Part No
  NPX138N-070-01
• ECCN
  7A994
• PMA
  PQ2204NM
• SCHEDULE B CODE
  8518.40.2000