May 2016

May 31, 2016

RADIO OPERATORS ALPHABET

RADIO OPERATORS ALPHABET Sometimes Radio transmissions can cause some kinds of speech to be unclear, that is the pronunciation of some letters when spoken on the radio can be garbled or mistaken for other letters. The reason for this is the bandwidth restrictions imposed by the

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May 31, 2016

RADIO & POLICE TEN CODES

RADIO TEN CODES Radio communication networks have always suffered from a half duplex (one person talks at a time) problem. Unlike cell phones or other telephone communications that are full duplex where you can simultaneously talk and listen at the same

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AUDIO CONTACT RELAY

May 10, 2016

WHAT IS A “dB” AND WHY IS IT USED?

The term dB is used throughout the electronics and communications industries to specify operating levels and equipment specifications. A full understanding of this term and its relationship to levels will help you in your day to day operations.

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dB dB loss dB measurement dB table dBm

May 10, 2016

THE “F” CONNECTOR AND THE FUTURE OF SDI-CCTV

What is it that the (CATV) Cable TV Industry knows about connectors that the (CCTV) Closed Circuit TV Industry needs to discover? The answer is the low cost, water tight, easy to install, connector used in the CATV industry. The CATV industry uses the "F"

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bnc bnc connector vs f connector bnc connectors cable slope loss dB loss f

May 10, 2016

CCTV VIDEO GROUND LOOP PROBLEM SOLVING

This article will discuss video ground loop problems in CCTV installations. The cause and how it effects picture quality with solutions to eliminate the problem.

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cable equalization cable slope loss cctv video ground loop blocker video ground loop

May 2016

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