Description

Sennheiser HME 100

General Description
The HME 100 is a pilot’s headset with closed ear
protector headphones and excellent passive noise attenuation for use in
helicopters, propeller and turbo-prop aircraft.

Features
Constant attenuation of up to 40 dB
Advanced transducer design ensures excellent speech intelligibility
Headphone volume control
Noise-compensated boom microphone for superior speech transmission

Technical Data
Headphones
Transducer principle ............................................................ dynamic
Ear coupling........................................................circumaural, closed
Frequency response ................................................ 45 – 15,000 Hz
Nominal impedance active/passive
HME 100........................................................150 Ω, mono
HME 100 ..................................................300 Ω per system, stereo
Attenuation (passive) .................................................> 10 – 40 dB
NRR (Noise Reduction Rating) ................................................24 dB
Contact pressure ...........................................................approx. 10 N
Weight without cable ...............................................................350 g
Microphone incl. Preamplifier
Type....................................................................................... MKE 45-1
Transducer principle ...............back-electret condenser capsule,
noise-compensated
Frequency response ................................................ 300 – 5,000 Hz
Max. SPL ................................................................................... 120 dB
Output voltage ...............................400 mV ± 3 dB at 114 dB/SPL
(as per RTCA/DO 214)
Terminating impedance...........................................................150 Ω
Operating voltage....................... 8 – 16 V DC, approx. 8 – 25 mA
(as per RTCA/DO 214)
General Data
Connection cable
HME 100 .................single-sided round cable, length 1.5 m
Connectors
HME 100
– Headphones......................................................... 1/4” stereo jack
– Microphone ................................................... PJ-068 (5.25 mm Ø)

Specials
HME 100............................. headphone volume control,
HME 100 ............................................................mono/stereo switch
Operating temperature ...................................... – 15 °C ... + 55 °C
Storage temperature ...........................................– 55 °C ... + 55 °C