HMEC 45 NoiseGard
HMEC 45 NoiseGard™
Headsets | Pilot´s Headset with NoiseGard™
Active Noise Compensation
General Description
The HMEC 45 is a very lightweight and comfortable open pilot’s headset (boomset) with NoiseGard™ active noise compensation. Different
connector and powering versions are available to suit every conceivable
cockpit configuration.
Technical Data
Headphones
Transducer principle...............................................................dynamic
Ear coupling............................................................ supra-aural, open
Frequency response.................................................. 20 – 18,000 Hz
Impedance active/passive................600 /160  (2 x 1,200 /
2 x 320  connected in parallel)
Nominal SPL..........................................................102 dB/SPL ± 3 dB
(1 kHz, 1 mW)................................................(as per RTCA/DO 214)
Active noise compensation..........................10 dB ± 3 dB between
400 Hz and 1 kHz
THD.................................................................................................< 1 %
Contact pressure................................................................appx. 1.6 N
Weight without cable.............................................. 140 g (4.94 oz)
Features
j Noise reduction of appx. 10 dB – consequently ATC signal can
be decreased
j Lightweight, with soft ear pads
j Two-piece adjustable headband ensures a secure fit
j Boom microphone with noise-compensated electret capsule
j Adjustable microphone boom can be turned through 350° and
thus be worn on either side
j FAA and JAA TSO approval C 57 a and C 58 a
j Delivery includes: 1
HMEC 45 headset, 1 MZW 45 wind and pop screen
1 MZQ 2002-1 cable clip
1 pouch
Recommended Accessories
j HZH 60 hygiene pads (100 pairs)
j HZP 45 comfort hygiene pads
Cat. No. 003553
Cat. No. 091592
Replacement Parts
j Ear pads(1 pair)
j MZW 45 wind and pop screen
Cat. No. 046581
Cat. No. 075823
Product Variants
j HMEC 45-CA
j HMEC 45-KA
Cat. No. 004497
Cat. No. 004498
Microphone incl. Preamplifier
Type........................................................................................ MKE 45-1
Transducer principle............................................condenser capsule,
noise-compensated
Frequency response.................................................. 300 – 5,000 Hz
Max. SPL .................................................................................... 120 dB
Output voltage.........................................400 mV ± 3 dB at 114 dB
(as per RTCA/DO 214)
Terminating impedance........................................................... 150 
Operating voltage........................................ 8 – 16 V DC, 8 – 25 mA
(as per RTCA/DO 214)
General Data
Connection cable.......................................single-sided round cable,
length 1.8 m (5.91 ft)
NoiseGard™ supply
-CA/-KA....................................................... 2 x 1.5 V AA batteries or
2 x 1.2 V AA rechargeable batteries
Operating time appx.
-CA/-KA......................................................................... Batteries: 80 h
Rechargeable batt.: 20 h
Switch -CA/-KA.................................... Battery/NoiseGard™ on/off
Indicator -CA/-KA....................................... green LED for Power On
Connector(s)
-CA ................................................................................................ XLR-5
-KA
Headphones............................ 1/4” stereo jack, Ø 6.3 mm (1/4˝)
(converted to mono)
Microphone...........................................PJ-068, Ø 5.25 mm (0.21˝)
HMEC 45 NoiseGard™
Headsets | Pilot´s Headset with NoiseGard™
Active Noise Compensation
General Description
The HMEC 45 is a very lightweight and comfortable open pilot’s headset (boomset) with NoiseGard™ active noise compensation. Different
connector and powering versions are available to suit every conceivable
cockpit configuration.
Technical Data
Headphones
Transducer principle...............................................................dynamic
Ear coupling............................................................ supra-aural, open
Frequency response.................................................. 20 – 18,000 Hz
Impedance active/passive................600 /160  (2 x 1,200 /
2 x 320  connected in parallel)
Nominal SPL..........................................................102 dB/SPL ± 3 dB
(1 kHz, 1 mW)................................................(as per RTCA/DO 214)
Active noise compensation..........................10 dB ± 3 dB between
400 Hz and 1 kHz
THD.................................................................................................< 1 %
Contact pressure................................................................appx. 1.6 N
Weight without cable.............................................. 140 g (4.94 oz)
Features
j Noise reduction of appx. 10 dB – consequently ATC signal can
be decreased
j Lightweight, with soft ear pads
j Two-piece adjustable headband ensures a secure fit
j Boom microphone with noise-compensated electret capsule
j Adjustable microphone boom can be turned through 350° and
thus be worn on either side
j FAA and JAA TSO approval C 57 a and C 58 a
j Delivery includes: 1
HMEC 45 headset, 1 MZW 45 wind and pop screen
1 MZQ 2002-1 cable clip
1 pouch
Recommended Accessories
j HZH 60 hygiene pads (100 pairs)
j HZP 45 comfort hygiene pads
Cat. No. 003553
Cat. No. 091592
Replacement Parts
j Ear pads (1 pair)
j MZW 45 wind and pop screen
Cat. No. 046581
Cat. No. 075823
Product Variants
j HMEC 45-CAP
j HMEC 45-KAP
Cat. No. 004569
Cat. No. 004570
Microphone incl. Preamplifier
Type........................................................................................ MKE 45-1
Transducer principle............................................condenser capsule,
noise-compensated
Frequency response.................................................. 300 – 5,000 Hz
Max. SPL .................................................................................... 120 dB
Output voltage.........................................400 mV ± 3 dB at 114 dB
(as per RTCA/DO 214)
Terminating impedance........................................................... 150 
Operating voltage........................................ 8 – 16 V DC, 8 – 25 mA
(as per RTCA/DO 214)
General Data
Connection cable.......................................single-sided round cable,
length 1.8 m (5.91 ft)
NoiseGard™ supply
-CAP............................................................28 V DC from the aircraft,
via pin 5 of the XLR connector
-KAP............................................................28 V DC from the aircraft,
via tip of the microphone connector
Switch....................................................................NoiseGard™ on/off
Connector(s)
-CAP . ............................................................................................ XLR-5
-KAP
Headphones............................ 1/4” stereo jack, Ø 6.3 mm (1/4˝)
(converted to mono)
Microphone............................................PJ-068, Ø 5.25 mm (0.21˝)
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising