UHF Hearing Protection Headset
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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
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Comfortable, passive attenuation
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Protection from sound levels above 87dB(A)
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Typical attenuation @1,000Hz reduction of 30 dB(A)
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Operates at 864.5MHz to satisfy the exacting EMC requirements
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Fully integrated with standard issue MK7 cloth flight deck helmet
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Standard twin AA batteries
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Standby mode lasting up to 120 hours
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Up to 60 hours receiving transmitted signal
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Manufactured from highest grade ABS noise attenuating plastic
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On/Off, out of range & low battery audio and visual warnings
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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
| 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 |
| Warnings: |
Audio and visual when; - Out of range - Loss of main broadcast transmitted signal - Low battery power |
| Range: | 75m (line of sight) |
| Dimensions: |
Product: 130 x 120 x 100 mm Packaged: 155 x 135 x 107 mm |
| Weight: | 450g (without batteries) |