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.
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规格：
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)
特征：
Wideband / Narrowband Capable
Compact Size and Weight
Optional Synthesized 2 Channel Guard Receiver
Low Power Consumption
Modular Construction
Multiple Scan Modes
Ease of Operation
Low Cost
Agile Operation
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