Author: fmsystems

July 14, 2007

OVER-THE-COAX AUDIO FOR CCTV, A SOUND INVESTMENT

Hearing and speech are one of mankind's most powerful tools. We rely heavily on the use of these faculties for our day to day living. Yet in the average security installation this audio information is not available to security personnel responsible for the safety and

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July 2, 2007

REMOTE CONTROL OF CENTRALIZED VCR’S BY TEACHERS IN THE CLASSROOM

Two-way remote control of centralized instructional VCR's is now possible over the same coaxial cable the sends the video base-band signal to the classroom.

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control remote control on video video switch

June 30, 2007

Video Multi-Meters Find Niche In CCTV Market

CCTV technicians can use upgraded technology to improve skill level, which can't be measured in price.

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cable slope loss luminance overload video test meter video training tools

June 10, 2007

TV AUDIO DEVIATION: MEASURING AND SETTING IT

Measurement and control of TV audio volume has always been with us, but other concerns have usually taken precedence.

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audio agc audio gain control real-time audio

May 15, 2007

Standard and procedures for video level measurement

Setting video levels would be easy if only the cable operator could call up a test pattern when he was ready to set levels. In that sense the broadcast engineer has it much easier.

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April 7, 2007

RESTORING PICTURE QUALITY ON CCTV SYSTEMS

The quality of a CCTV picture basically depends on the number of “lines” the camera can delineate and the number of “lines” the DVR can store and the number of “lines” the monitor can display. The component with the lowest “lines” capability thus sets the

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cable equalization cable slope loss video test meter video training tools

April 4, 2007

FM SYSTEMS’ VVM digital video voltmeter

Since the introduction of VideoCipher technology for satellite program security and addressable converter operation in systems, our industry has had to pay a lot more attention to baseband signals.

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video test meter video training tools

February 2, 2007

NBC News Channel Turns to FM Systems VM-771

If there is anything the major news gathering organizations have learned over the past few years, it is that coverage of world events is no longer purely prime time, but in fact, anytime

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audio on video automatic video level control video agc video gain control

September 27, 2001

WHAT IS S/N RATIO & WHY IS IT IMPORTANT?

The Signal-to-Noise Ratio specification sometimes noted as “S/N Ratio”, “SNR”, or just “S/N” for cameras, amplifiers, and wireless equipment is sometimes overlooked and miss-understood. The S/N Ratio notation will show up in many specification sheets for the equipment in a CCTV system, so it must

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S/N RATIO video test meter video training tools

June 21, 2001

CAMERA MASTER – THE DIGITAL VIDEO MEASUREMENT SYSTEM

FM SYSTEMS INC. has developed a new measurement technology in the CM-1 CAMERA MASTER. This meter displays video SYNC. amplitude (Video Level), White amplitude (Iris Setting), Composite amplitude (Video Peak to Peak Level), and Color Burst amplitude (Slope Equalization) in I.R.E. Units, as well as

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cable loss video luminance measurement video test meter video training tools

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