This product is intended for airborne sports where there is a need of radio communication in high noise environment but also is required to use a helmet. Model NC-1000A-H the next stage of technological development of NAVCOMM. After a series of passive headphones came time to design the next one with active electronics. Built-in ANR (Active Noise Reduction) module allows in a way that is not reachable for passive solutions reduce the level of external noise especially in the low frequency range, which are the most burdensome for the ear, and the most difficult to reduce using only the shielding shell.
More about an ANR system can be read in our brochure placed in "FAQ" block.
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|Noise reduction method||Passive + active|
|Passive noise suppression||-24dB|
|Active noise suppression||-23dB|
|Speakers frequency response||20-17000 Hz|
|Speakers impedance||300 Ohm / 32 Ohm|
|Speakers effectiveness||95 +/-5 dB SPL|
|Microphone type||electret / dynamic|
|Microphone frequency response||100-8000 Hz|
|Microphone impedance||2,2 kOhm / 600 Ohm|
|Microphone sensitivity||-33 dB +/-4 (basic model)|
|Additional features||ANR, PTT|
|Power consumption||40mW (average)|
|Power supply||battery, 2 x 1,5V, AA type|
|Volume control||Yes, independent L/R|
|Mono / stereo switch||YES|
|Detachable cable (multi pin connector)||OPTION|
|GA microphone preamp||OPTION|
|Ear seals type||GEL|
External construction of NC-1000A-H model does not differ significantly from our earlier headset models and consists of: ear cups (available in three colors: gray-green, black or orange), equipped with gel seals and additionally cotton overlays, mounted on the hybrid arm (wire frame connected by the hinge with "gooseneck") microphone and the arm connection kit allowing to set the microphone in the desired position.
Moreover, the handset is equipped with five feet, reinforced with additional braided cable terminated with a one of the dozen offered by us plugs type. In the middle of the cable length has a built-in module responsible for power supply control.
The passive electronics consists of an electret or dynamic microphone with noise compensation and two pairs of inserts speaker with an impedance of 300 and 32 Ohm.