UHF Hearing Protection Headset

Vitavox have designed and manufactured the VQ90401 UHF headset as a naval main broadcast magnetic loop system replacement.

These are used on the Royal Navy Astute class of submarine.

  • Greater clarity and less noise interference than magnetic loop
  • Comfortable, passive attenuation

  • Protection from sound levels above 87dB(A)

  • Typical attenuation @1,000Hz reduction of 30 dB(A)

  • Operates at 864.5MHz to satisfy the exacting EMC requirements

  • Fully integrated with standard issue MK7 cloth flight deck helmet

  • Standard twin AA batteries

  • Standby mode lasting up to 120 hours

  • Up to 60 hours receiving transmitted signal

  • Manufactured from highest grade ABS noise attenuating plastic

  • On/Off, out of range & low battery audio and visual warnings

  • Magnetic loop compatible, receive only version is also available and may be easily upgraded in the future to UHF if and when required

  • Requires UHF transmitter
VQ90401 UHF Receive Only Headset
Product: UHF Receive Only Headset
NSN: 5965-99-894-1629
Attenuation: Passive attenuation, –30 dB(A) at 1 kHz
Headband Adjustment: 250mm (450mm to 700mm)
Operating Frequency: UHF Band E, 864.5 MHz
Frequency Response: 100 Hz to 12 kHz
Power Supply: 2 x Standard AA Batteries (weight 75g)
Battery Life:

a. >120 hours on standby with 5% audio output

b. >60 hour continuous audio receive and output at maximum level

c. Additional 4-6 hours after low battery warning
RX Sensitivity: Will receive signals < 2.5uV @52dBA
Dynamic Operating Current: 45mA

Audio and visual when;

- Out of range

- Loss of main broadcast transmitted signal

- Low battery power
Range: 75m (line of sight)

Product: 130 x 120 x 100 mm

Packaged: 155 x 135 x 107 mm
Weight: 450g (without batteries)