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Firecom LW-10 User Manual page 2

Light weight, radio-transmit headset with glove rugged plug and in-line control box

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Proper Fit
The headband is to be worn behind the head with the speaker located on the left ear.
Microphone Placement
Place the microphone in front of the mouth and NO MORE than 1/8 " away from the lips as
shown in the diagram below. Placement of the microphone is CRITICAL for proper operation.
If the microphone is positioned incorrectly, you may experience a reduction in
volume and clarity of intercom and radio communication.
Headset Volume
Turn the intercom volume down. Preset each headset volume to the highest setting (full clock-
wise). Set the intercom volume to a level above the normal comfortable listening level, but at a
level which does not cause distortion. Reset the individual headset volume for best listening level.
Intercom Communication
The headset microphone is always active for intercom communication. Simply speak into the
microphone to be heard over the intercom.
Radio Transmit
The LW-10 headset has a Push-To-Talk (PTT) button on the in-line control box.. Pressing this
button will key the radio. Press and hold the PTT while speaking into the microphone to
transmit on the radio.
No more than
1/8" from lips
Mic Muffs
The headset microphone is covered with a replaceable foam mic muff. This mic muff helps
prevent the "pops" and "hisses" that can occur from speaking into a microphone that is close
to the mouth.
Replacement Parts & Accessories
Description
Mic Muffs, (Qty5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108-0004-60
Clothing Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108-0057-00
Ear Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108-0061-00
Temple Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108-0062-00
Specifications
Headset
Performance . . . . . . . . . . . . . . 90 dB with AVG SPL (300=3KHz) @ .387 VRMS input
Frequency Response . . . . . . . . . . . . . . . . . . . . 100-17,000 Hz +5 dB in 6 cc coupler
Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150 ohm@1KHz
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.69 oz.
Microphone
DC Bias Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16 volts, not polarity sensitive
Source Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 to 2200 ohms
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 dB Typ@94 DB SPL
Frequency Response . . . . . . . . . . . . . Optimized for speech clarity and noise reduction
Headband worn
behind the head
Push-To-Talk (PTT) button
Volume control
Part Number

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