X64ACS
DIRECTIONAL MICROPHONE
TECHNICAL SPECIFICATIONS
&
OPERATING MANUAL
MICROPHONE ARRAY DESIGNED FOR
LONG RANGE AUDIO SURVEILLANCE
Phased microphone array properties
64 independent acoustic channels.
Produced from strong and lightweight material with density of 1.20 g/cm3, it offers good impact strength.
Material life : 80 years.
Color : black.
dimensions of the array - 36cm (14.173in) x 28cm (11.023in)
range of intercepting sound - 150 meters, range exceeds 200 meters in urban areas without heavy presence of noise
noiseless acoustic gain - 26dB at 1KHz
directivity factor - 10 degrees first order
water resistant
shock resistant
weight 3 kg
Microphone and headphone amplifier specification
To obtain maximum quality of the received sound all components used in amplifier are from the ULTRA LOW NOISE semiconductors class.
The headphone amplifier works with all commercial types of headphones.
22 hours continuous work.
microphone sensitivity (-28) dB
microphone signal to noise ratio 80 dB - self noise 14 dBA
low noise microphone preamplifier - input noise stage lower than 0.4 nV √Hz
filter off frequency range - 20 Hz - 16 KHz
filter on frequency range - 300 Hz to 4.5 KHz
AGC system - posibility for setting threshold level manualy
headphone output power - up to 2 Watts in standard 32 Ohm headphones
unprocessed, unfiltered line out for recording
electromagnetic shielding of the electronics
Battery pack
Option one - rechargeable long life Li-Ion batteries.
6 cells Li-Ion
Fully charged 23.8V - nominal 23V 2200mAh
average working time fully charged - 22 hours
5 years battery life
non capsulated battery - easy to replace after 5 years service
Option two - standard 9 volt battery
Camouflaged laptop case properties
Fully identical to the original one.
All modifications to the case, which carries directional microphone and headphone amplifier, cannot be spotted from outside