Wireless Video Transmitters and Receivers with Audio by Coherent Communications

Covert Security & Industrial
Wireless Video-Audio Systems


		MATCHBOX WIRELESS VIDEO-AUDIO TRANSMITTER Model CVT-MA

C V T - MA F e a t u r e s

NOW! Video AND Audio Transmission in a truly tiny size for maximum flexibility in placement—may be mounted on the smallest camera, body worn, put in attaché case, fixed on a helmet, etc.

Extremely rugged and lightweight extruded Aluminum enclosure

Two, switch selectable channels in 902-928 MHz band, US / Canadian approved power levels -- no license required

Higher powered (CVT-MEA), 25 mW export model available, or use matching CVA-3, 250mW Power Amp

Works from a 9 Volt Alkaline battery for up to 8 hours (not including camera)

FM Video for highest quality picture and most resistance to interference

Wide power supply range from 7.6 to 14 VDC or AC Adaptor

Color coded side markers to distinguish between multiple Transmitter and Receiver sets

Crystal referenced, synthesized PLL design for best frequency stability and reliability over temperature

C V T - MA S p e c i f i c a t i o n s

Operating Distance
1000 ft (305m) line of sight (US / Canadian version). May be more or less depending on conditions, antennas used, elevation, etc. To extend range, see our price list for high gain Yagi antennas. Higher power Government & Export version will have considerably more range.

Operating Frequency
902-928 MHz.

Transmitter Type
FM, with temperature compensated frequency control. Deviation is ±3 MHz nominal, but may be adjusted.

Frequency stability (-20 to +60º`C, -4ºF to +131ºF)	± 0.005%

Video System (with CVR-1000 Receiver)	NTSC or PAL, automatic selection
Video level	1.0 Volt p-p into 75 Ohms
Video bandwidth	10Hz - 4.2MHz ± 1dB typical, 10 Hz to 5.5 MHz +1, -3 dB
Differential Gain at -40 dBm RF input	<5 %
Differential Phase at -40 dBm RF input	<7 º
Signal to noise ratio -40 dBm RF input	54 dB weighted

Voltage & Current consumption	7.6 to 14 VDC, 55 mA at 12 VDC

Audio System	Microphone input with 5 VDC bias for Electret mics or Line level (PCB jumper selected) and level control—see Receiver for specs

Mechanical
Size	1.5W x 1.8L x 0.6D in (3.9 x 4.7 x 1.4 cm)
Weight	2 oz. (58g)
Antenna and connector	50 Ohm subminiature MMCX type
Power & Video input connector	4 pin subminiature quick disconnect

Environmental
Operating temperature	-20ºC to +60ºC (-4ºF to +131ºF)
Storage temperature	-40ºC to +70ºC (-40ºF to + 158ºF)
Humidity range (non-condensing)	5 to 90%

Preliminary Specifications subject to change without notice.

MADE IN THE USA