XPR7000 RMN4051 Hardhat Mount Headset

RMN4051 Hardhat Mount Headset

This hardhat mount headset is ideal for two-way communication in high-noise environments.  It mounts easily to a hardhat with slots or can be worn alone.  It provides 22db of noise reduction and is Dual-Muff (Adapter Cable Required and Sold Separately).  Easily replaceable ear seals are filled with a liquid and foam combination to provide excellent sealing and comfort. A 3-foot coiled cord assembly is included. Hardhat not included.

General

Frequency range Tx 156.025–157.425 MHz
Rx 156.050–163.275 MHz
Rx (CH70) 156.525 MHz
RX (AIS) 162.025 MHz
Usable channel groups INT, USA, CAN, WX channels
Type of emission 16K0G3E (FM), 16K0G2B (DSC), 16K0GXW (GMSK)
Current drain
(at 7.2 V DC)
TX (6 W/1 W output) 1500 mA/700 mA (approx.)
RX (Inter SP/Exter SP Max. audio) 700 mA/350 mA (approx.)
Operating temperature range –20°C to +60°C; –4˚F to +140˚F
Antenna impedance 50 Ω
Dimensions (W×H×D)
(Projections not included)
60.9 × 145.8 × 43.8 mm;
2.4 × 5.7 × 1.7 in
Weight (approximately) 357 g ; 12.6 oz
(With BP-306, antenna, MB-133)

 

 

Transmitter

Output power (Hi/Low) 6 W/1 W
Max. frequency deviation ±5 kHz
Frequency stability ±10 ppm
Spurious emissions –68 dBc typical

 

 

Receiver

Sensitivity (at 12 dB SINAD)
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
0.25 μV typical
–3 dBμ emf typical
–107 dBm
Squelch sensitivity (Threshold) 0.25 μV typical
Adjacent channel selectivity
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
70 dB typical
73 dBμ emf
50 dB typical
Spurious response
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
70 dB typical
73 dBμ emf
50 dB typical
Intermodulation
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
70 dB typical
68 dBμ emf
50 dB typical
Hum and noise 40 dB
Audio output power
(at 10% distortion)
Internal SP 1500 mW typical (8 Ω load)
External SP 350 mW typical (8 Ω load)

 

Measurements made in accordance with TIA/EIA-603. All stated specifications are subject to change without notice or obligation.

 

 

Applicable U.S. Military Specifications & IP Rating

Standard MIL-810 G
Method Procedure
Low Pressure 500.5 I, II
High Temperature 501.5 I, II
Low Temperature 502.5 I, II
Temperature Shock 503.5 I-C
Solar Radiation 505.5 I
Rain Blowing/Drip 506.5 I, III
Humidity 507.5 II
Salt Fog 509.5
Dust Blowing 510.5 I
Immersion 512.5 I
Vibration 514.6 I
Shock 516.6 I, IV

Also meets equivalent MIL-STD-810-C, -D, -E and -F.

Ingress Protection Standards
Water IPX7 (Waterproof protection)

 

All stated specifications are subject to change without notice or obligation.

 

 

Supplied Accessories

  • BP-306 battery pack
  • BC-251 battery charger
  • AC adapter*
  • CP-26 cigarette lighter cable
  • MB-133 belt clip
  • Antenna
  • Hand strap

* May differ depending on version

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