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Tweaking the antenna system
Jul 1, 2008,
By John Battison, P.E., technical editor, RF
The last link in the broadcast chain under the control of the broadcast engineer is the transmitter and antenna system. From then on quality of reception is left in the hands of the listeners. Thus it puts the onus of transmitting the best possible signal on the station engineer. 
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Tennessee Turnaround
Mar 1, 2008,
By Pat Lane
WKNO-FM, an NPR member station in Memphis, began operations on April 1, 1972, on 91.1MHz with 40kW of effective radiated power. The station launched its HD Radio signal in the fall of 2007. Up to that point, we underwent incremental upgrades and adjustments to the original installation.
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A Foundation for the Future
Mar 1, 2007,
By Keith Stuhlmann
In its most basic description, this project entailed the addition of a 40 feet by 60 feet space attached to an older, steel-framed transmission facility, but the story extends far beyond the basics.
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The path to upgrading
Mar 1, 2007,
By John Battison, P.E., technical editor, RF
From finding land to filing a Form 302: an overview of the steps for completing an upgrade.
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Living with your license
Jan 1, 2007,
By John Battison, P.E., technical editor, RF
Your new or latest station license has arrived. How you deal with it can have a huge effect on your future.
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Jampro JHPC
Oct 1, 2006,
By Todd Noordyk
Accumulated ice can wreak havoc on some antennas if you aren't careful. One station in Manistique, MI, has found the Jampro JHPC to be a reliable choice through the sever winters.
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The vertical challenge
Jan 1, 2006,
by David Nicholson and William A. Griswold Jr., PE, SE
As broadcasters rush to prepare for adoption of the new standard, the time is ripe to step back to consider the state of the radio tower industry and the effect Revision G will have on it.
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In tune with detuning
Sep 1, 2005,
By Joe L. Bellis, CPBE
As cellular towers began to proliferate, the interference to broadcast antenna systems became apparent, and AM broadcasters sought redress from the FCC.
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The final Element
Aug 1, 2005,
By Doug Irwin
Examine some ideas and items to look for in the budgeting and planning process as they apply to FM and AM antennas.
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Dielectric HDR Plus
Apr 1, 2005,
By Henry Downs
The most daunting task of IBOC has been how to combine the analog and digital signals in a cost-effective manner. Dielectric believes it has the answer.
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FM IBOC site preparation
Mar 1, 2005,
By John Battison, P.E., technical editor, RF
What steps should you take when constructing a new facility for IBOC?
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Site security
Feb 1, 2005,
By Rolin Lintag
Although no amount of security can deter a determined intruder, a burglar will definitely look for an easier target rather than risk being slowed down by a facility’s defenses and be caught in the act.
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Antenna currents and field strength
Jun 1, 2004,
By John Battison, P.E., technical editor, RF
Sometimes we lose sight of the relationship between current in an antenna and the resulting field strength value.
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Safety first
May 1, 2004,
By Kevin McNamara, CNE
It may seem that a typical broadcast facility doesn't have all the safety concerns of a construction site or a manufacturing facility, but accidents happen.
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Concerning combiners
Apr 1, 2004,
By John Battison, P.E., technical editor, RF
Until the advent of FM, combiners were rarely required. After FM was introduced, the need for a method of feeding two or more FM frequencies into a single
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