User Manual
6
Never remove the charging cable from the headset by pulling on the cord.
The headset should be unplugged at the jack location by pulling the
charger plug from the jack.
Wipe headset and ear seals with a mild soap and water mixture only. NEVER IMMERSE
ANY PART OF THE HEADSET IN WATER. Although the microphone is water resistant, to
ensure a longer life, keep the microphone away from moisture, when possible.
Do not store in direct sunlight or in areas of high temperature.
Specifications
Headset
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104dB re 20 uPa @ 1000 Hz, 1 mW
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300Hz - 3.4 KHz,+/- 3dB
Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 ohms nominal per speaker
Weight (FHW-10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19.50z
Weight (UHW-10/ 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17.80z
Microphone
Frequency Response . . . . . . . . . . . . . . . .Optimized for speech clarity and noise reduction
Max. Amb. Noise Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125dB SPL re 20 uPa
MIC Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-44+/- 5db, 0dB=1v/ Pa
DC Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Internally Biased
Frequency range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300Hz – 3.4KHz
Noise Canceling . . . . . . . . . . . . .approx. 6.25 db / octave from 3.4 KHz down to 300 Hz
S/ N ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60db minimum
Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Internally matched
RF
- Range: 300' open field, 90' minimum from base station mounted on fire or emergency
truck.
- Digital encoding for secured communications
- Interference free communications for up to 40 headsets operating in close proximity.
- Immunity to interference from other communications devices operating in the entire
frequency spectrum from 30 MHz – 18 GHz.
FCC Compliance
Pending FCC approval, this device complies with FCC Rules Part 15. Operation is subject to
the following two conditions:
1 This device may not cause harmful interference.
2. This device must accept any interference that may be received, including interference that
may cause undesired operation.
Changes or modifications not expressly approved by Firecom Corporation can
void the user’s authority to operate the equipment.