NC-2300 is our flagship aviation handsets. It combines more than twenty years of experience the company gained market General Aviation with the latest technology in the field of active damping and wireless connectivity. The use of especially the latter opens up completely new possibilities for the integration of onboard avionics.
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|Noise reduction method||Passive + active|
|Passive noise suppression||-24dB|
|Active noise suppression||-23dB|
|Speakers frequency response||20-17000Hz|
|Speakers impedance||150 Ohm (mono), 300 Ohm (stereo)|
|Speakers effectiveness||95 +/-5 dB SPL|
|Microphone type||electret with noise cancellation (basic model)|
|Microphone frequency response||100-8000 Hz|
|Microphone impedance||220-2200 Ohm|
|Microphone sensitivity||-33 dB +/-4 (basic model)|
|Connector type||PJ 055, PJ068 (basic model)|
|Power consumption||50mW (average)|
|Power supply||battery, 2 x 1,5V, AA type , external over built-in USB-C socket|
|Volume control||Yes, independent L/R|
|Mono / stereo switch||Yes|
|Detachable cable (multi pin connector)||Optional|
|GA microphone preamp||Yes|
|Ear seals type||Gel|
Headphones NC-2300 allow the combination of the two, working simultaneously and in full-duplex audio channels: wire, intended to work with the onboard aviation radio and wireless - based on Bluetooth transmission standard . It should be noted that although both the built-in Bluetooth and an active damping system for proper operation need battery power in the event of a power failure, eg. as a result of battery discharge the basic function of the headphones, which provide radio communication is not interrupted.
The heart of the model NC-2300 is built on the cable module control and power. It has a container for two 1.5V standard AA battery and a set of components that control the systems which include: the main switch, Bluetooth support key (pairing, answer incoming calls, control additional functions), Bluetooth volume control +/- buttons, two rotary knobs for control of the air channel volume, two LEDs indicating the status of the system, additional AUX 3.5mm jack standard socket for connecting the third audio source and three-position slider that allow to set a priority of both audio channels. Using this slider you can choose to keep a system in the event of a signals on both channels - wireless and wired. It is possible for eg. to set mode where wireless transmission is automatically muted when air-traffic voice incoming.
Model NC-2300 also has a built-in active noise NC-BT/ANR (Active Noise Reduction second generation) allowing in the unavailable for passive solution way to reduce the level of external noise, especially in the low frequency range, which is the most burdensome for the ear and the most difficult to reduce using only the shell suppression.
More about an ANR system, and the advantages offered by its use can be read in our brochure placed in "FAQ" block.
External construction of NC-2300 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 covers, steel headband with adjustable fit size, a soft top, mounted on the hybrid arm (wire frame connected with a hinge so. "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 standard PJ (PJ052 and PJ068) plugs. In the middle of the cable length has a built-in module responsible for power supply and Bluetooth / ANR control. The passive electronics consists of an electret microphone with noise compensation or optional differential dynamic microphone, preamp and two pairs of inserts speaker with an impedance of 300 and 32 Ohm (including one with two coils). In addition, the ear cup's electronic includes elements of the NC-BT/ANR module..
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