Wireless Video Transmitters and Receivers with Audio by Coherent Communications

Covert Security & Industrial
Wireless Video-Audio Systems


		WIRELESS VIDEO-AUDIO RECEIVER Model CVR-1000

C V R - 1 0 0 0 F e a t u r e s

The five section signal strength indicators are a real help in evaluating location, antenna position and range. The first three lights are green showing excellent to moderate signal strength. The next light is yellow, warning of a weak signal. The red light means that the signal is probably not usable.

The red LED light also serves as a low battery warning by blinking when the battery falls to 10.5 volts.

Receiver performs a self check when first turned on.

When another channel is selected, a green light will blink to let you know that the internal phase lock circuitry is functioning properly and will stop blinking once it has achieved frequency lock.

Two parallel power & audio connectors are provided -- a 4 terminal barrier strip & a 4 pin mini-DIN -- use whichever is most convenient for your application.

The Receiver may be attached to a wall using a slide-on bracket, placed on a desk or mounted to an irregular surface with the supplied brackets.

10 User selectable channels; up to 3 may be in operation in the same area

Changeable color coded plastic side panels may be inserted to distinguish operating frequency used between multiple Transmitter and Receiver sets

No license required: US / Canada approvals under FCC part 15 & IC RSS-210 (Canada)

Works from a 12 or 24 Volt battery or AC Adaptor

An Audio level control is available to precisely match the CVR-1000’s audio output to your equipment

CVR-1000 Receiver with regulated 12 VDC
power supply, antenna, bracket, connectors
manual and the following transmitters:

S-510 includes:	1 CVT-500	Transmitter with regulated 12 VDC power supply
S-1010 includes:	1 CVT-1000	Transmitter with regulated 12 VDC power supply, antenna & bracket

C V R - 1 0 0 0 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), more or less depending on conditions, antennas used, elevation, etc. Government & Export version will have considerably more range.

Operating Frequency
902-928 MHz in 10 user selectable channels. Up to 3 channels may be used in the same area simultaneously.

Receiver Type
FM, Single conversion super-heterodyne with frequency control via synthesized phase locked loop, crystal referenced.

Noise figure		<2 dB
Frequency stability (-20 to +70º`C)		0.003%

Video System		NTSC or PAL
Video level (internally adjustable)		1.0 Volt p-p into 75 Ohms
Impedance		75 Ohms
Video bandwidth		10 Hz to 3.0 MHz ±1 dB typical; ±1 dB 10Hz -4.2MHz 10 Hz to 5.5 MHz +1, -3 dB
Video signal to noise ratio referenced to:		Received Signal Strength Indicator (RSSI)
1st green light		RF level -40 dBm Video SNR 60 dB 64 dB typical
2nd green light		RF level -50 dBm Video SNR 55 dB 60 dB typical
3rd green light		RF level -60 dBm Video SNR 52 dB 55 dB typical
Yellow light		RF level -70 dBm Video SNR 45 dB 48 dB typical
Red light		RF level -80 dBm Video SNR 30 dB 34 dB typical
Differential Gain at -40 dBm RF input		5 % Typical 3%
Differential Phase at -40 dBm RF input		5 º Typical 4°

Audio Output (except with CVT-500 & CVT-M)		All dB figures referenced to 0 dB = 0.774Vrms
Line output (Receiver) adjustable from		0 dB to +10 dB at ± 50 kHz Deviation.
Frequency response at 20 dB below full deviation		40 Hz to 15 kHz +1, -3 dB , 60 Hz to 10 kHz ± 1 dB (may be extended to -3 @ 30kHz.)
Total harmonic distortion (before limiting)		0.5% at 400 Hz, 0.25% typical

Audio Modulation Type		FM
Maximum deviation		± 75 kHz
System signal to noise ratio at 50 kHz deviation		65 dBA
Pre & de-emphasis		75µ Second

Audio Carrier Offset from Video		6.5 MHz

Power		12 VDC (10.5-30 V)

Current consumption		220 mA at 12 VDC

Mechanical
Size		3.7W x 6.2L x 1.2H in (98 x 155 x 30mm)
with connectors & optional bracket		3.7W x 7.9L x 1.4H in (98 x 201 x 36.8mm)
Weight		13.6 oz (385 g)
with connectors & optional bracket		17.1 oz (486 g)

Antenna connector		50 Ohm BNC
Video output connector		75 Ohm BNC
Power & audio output connector		4 pin mini-DIN & 4 terminal barrier strip in parallel

Environmental
Operating temperature		-20ºC to +60ºC (-4ºF to +131ºF)
Storage temperature		-40ºC to +75ºC (-40ºF to + 152ºF)
Humidity (non-condensing)		90%

Approvals: FCC & Industry Canada No licensing required under FCC part 15.249 & IC RSS-210 for standard systems. Higher power systems transmitter has four power levels for Government or Export applications.

Specifications subject to change without notice.

MADE IN THE USA