Latest articles by DON MARKLEY
Transmission & Distribution
From video to RF? A fact well known to music enthusiasts is that the most critical parts of a recording/reproduction system are those where a transition
Antennas: The necessary evil
Old towers have a tendency to be fully loaded based on their original design criteria. No realistic engineer can argue that panel antennas don't work
Selecting a transmission site
Learn how to conduct a site study to select the best transmission site for your station.
Transmission & Distribution: Monitoring RF systems
Transmitters keep getting more and more reliable. At least, that is what the manufacturers would all have us believe.
Transmission & Distribution: Now less is more popular
As no real surprise to anyone who has not been asleep for the past five years, broadcasters have been having trouble meeting the FCC deadlines for DTV operation.
Pattern directions
Two directional TV antenna patterns exist: What the FCC wants and what's realistic.
Antenna installation and tower construction
There are steps that station personnel should take when antenna or transmission line work is done or when towers are being constructed or modified
DTV antennas
Careful planning, design and installation can lead to an effective radiation pattern.
Transmitters: The new ones are bigger
When you wandered through the halls of NAB2006, the transmitter offerings seemed to be the same old things. There were small solid-state ones, ones with
Another visit to antenna measurements
This article offers a review of vector network analyzer basics for testing transmission lines, antennas and other RF components, along with some dos and don’ts.
Basics of transmission line selection
Don Markley offers suggestions for the selection of transmission line, as well as information on different options available, and some of the benefits and drawbacks of each.
Transmission & Distribution: Two or more aren't a crowd
Traditionally, each television station in the United States had its own antenna and transmission line. To a significant degree, each station also had
High-power antennas
High-power antennas come in a variety of flavors. Which is right for you?
Measurements for DTV
At the risk of the howls of indignation from the naysayers who have been around all through the DTV conversion, it appears that well-designed and installed DTV systems are operating extremely well.
The snows (and ice) cometh
Winter is approaching rapidly, and stations in many states must deal with its perils. That includes wind, snow, ice, freezing rain and cold that makes
Television measurements
Here are the good, the bad and the ugly about DTV measurements.
RF exposure guidelines
If you have to defend your existing or proposed RF facilities in a public forum, make sure you’re well informed.
New adventures in remote control
Remote control systems have evolved to an incredibly level of complexity and functionality
