cable slope loss Tag

April 2, 2008

WHY CATV CABLE DOES NOT WORK ON CCTV SYSTEMS

When pricing out the cable to use to build a Closed Circuit Television System (CCTV) to connect cameras to a central monitor location, many system operators are seduced by the much cheaper price of CATV cable. After all the specs quoted about the transmission at,

Post Tags:

April 2, 2008

WHAT IS RETURN LOSS, AND WHY SHOULD I MEASURE IT

Once upon a time, "Return Loss" was a somewhat arcane term and used mainly with regard to high frequency transmission lines and the impedance transformations that could be the result of these reflected signals. Now however, with the advent of high speed Data transmission such

Post Tags:

cable slope loss reflections return loss

January 12, 2008

WHAT CAUSES CCTV GROUND LOOP PROBLEMS AND HOW TO FIX THEM

The annoying horizontal bars that occasionally show up in CCTV video monitors are the result of load unbalance in 60 cycle power distribution in the vicinity of a particular CCTV system. As such they may exist in one CCTV installation, but not in another essentially

Post Tags:

cable equalizer cable slope loss ground loop blocker video ground loop

December 15, 2007

PRODUCING HIGH PICTURE QUALITY ON LONG CCTV CABLES

Long Coaxial and Unshielded Twisted Pair (UTP) cables are a major cause of picture quality loss on Closed Circuit Television (CCTV) systems. No matter how sharp the picture a Camera can produce, or how clear the Monitor, the cables connecting them can appear to "defocus"

Post Tags:

cable equalization cable equalizer cable slope loss cctv video

August 5, 2007

CCTV VIDEO TROUBLESHOOTING TIPS

Someone once said "Knowledge is the key to success". This rule also applies to the installation and maintenance of CCTV camera equipment.

Post Tags:

cable equalizer cable slope loss video test meter video training tools

August 1, 2007

WHY AND HOW TO MEASURE CCTV CAMERA OUTPUT IMPEDANCE

In the past, CCTV cameras could be counted on to have proper 75 Ohm source impedances, but recently there have been a rash of cameras showing up on the market that do not have a 75 Ohm source impedance. In fact they exhibit an almost

Post Tags:

cable equalizer cable loss cable slope loss video test meter video training tools

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.

Post Tags:

cable slope loss luminance overload video test meter video training tools

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.

Post Tags:

cable equalizer cable slope loss video test meter video training tools

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

Post Tags:

cable equalization cable slope loss video test meter video training tools

Posts navigation

Previous 1 2

Search for:

cable slope loss Tag

Location

Recent Posts

Product Categories

International Inquiries