Day in the Life

FM Systems: Open Your Eyes and Take a Look
05.02.2007
In most cases, once a transmission line and antenna have been installed on a tower, little thought is given them until something goes wrong. More

Proper Installation Ensures Long Life
05.02.2007
Little thought is given to proper transmission line installation in many cases. A bag of cable ties or a box of Wraplock in the tower rigger's pouch is deemed sufficient to secure the line to the tower. Most radio engineers have seen transmission line installations where little more than electrical tape or cable ties were used to secure the line. More

Finding Suitable Transmission Line
05.02.2007
A broadcast engineer designing an FM transmission system has a number of choices for transmission line size and type...The factors that enter into this decision are transmitter power, line length and antenna gain. All three factors are somewhat variable. More

Rigid vs. Semi-Flexible Line
05.02.2007
In the case of FM antenna systems, there generally are two choices for transmission line types: rigid and semi-flexible. More

Rings, Stubs and Rototillers
05.02.2007
There are numerous FM antenna designs commercially available with various characteristics. Types include the panel with crossed dipole, ring, ring-stub, slanted dipole and "rototiller." More

VSWR Bandwidth, Friend or Foe?
05.02.2007
Too often, FM antenna systems are tuned with the engineer watching the transmitter reflectometer while the tower worker adjusts the matching device on the tower. More

Overshoots and Close-In Coverage
05.02.2007
In this segment, we will discuss methods of dealing with the problem of overshooting the target coverage area and problems with close-in coverage. More

Antenna Gain vs. Transmitter Power
05.02.2007
How many bays do I need in my antenna and how much transmitter power do I need? These questions often do not have hard and fast answers. More

Understanding FM Systems: A New Series
05.02.2007
With this article, we begin an in-depth look at FM transmission systems. More

Shared Use of Transmitter Sites
05.02.2007
For the past several months, we have taken a hard look at just about all the aspects of co-locating broadcast transmitting facilities with other broadcast and non-broadcast transmitting facilities. More

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