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4DLX CLASSIC 

U S E R S   G U I D E

Summary of Contents for 4DLX Classic

Page 1: ...4DLX CLASSIC U S E R S G U I D E ...

Page 2: ...ce the microphone no more than 1 8 from lips at the corner of the mouth This is critical to the performance of the noise canceling electret microphone A volume control is provided to reduce the level of audio in each ear dome If the aircraft does not have a built in push to talk PTT switch a portable PTT switch must be installed in order to use the radio The master gain control located in the airc...

Page 3: ... decrease slide the domes in an upward direction until they stop Properly fitting the headset to each wearer s head is crucial to performance The headpad should fit comfortably on top of the head without a gap or space between the head and headpad The head set should be centered on the head and the ear seals should comfortably cover the ears without being placed too far forward on the jawbone or f...

Page 4: ...ty sensitive Source Resistance 220 to 2200 ohms Output Voltage 370 mV 114 dB spl re 0002 microbar Frequency Response Optimized for speech clarity and noise reduction Maximum Ambient Noise Level 120 dB spl re 002 microbar Caution Bias voltage supplied to the microphone must come from voltage and resistance ranges specified above Voltages supplied in excess of those stated in the specifications can ...

Page 5: ...W I R I N G D I A G R A M Right Left Speakers Mic 6 3 mm Plug 5 2 mm Plug M S Questions Call toll free 1 800 432 4342 ...

Page 6: ...luding damage which is caused by user replaceable parts leaking batteries etc This warranty does not extend to any other equipment or aircraft to which this product may be attached or connected The foregoing is your sole remedy for failure in service or defect Flightcom Corporation shall not be liable under this or any implied warranty for incidental or consequential damages nor for any installati...

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