NAB Fastroad Investigates Transmitter Efficiency Ratings 

The NAB Fastroad project funded the report, which includes a proposal for industry-standard energy efficiency rating for transmitters.

Translators Today 

FM translator service, since its inception in the very early 1970s, has been subjected to several major technical overhauls.

L-com Global Connectivity ALW-CAT5HPJ, ALW-CAT5EJ, ALW-CAT6HPJ 

Lighting surge protectors

Calculating STL Fade Margin 

Understanding the mechanics of your RF program delivery system, and maintaining a keen grasp of the associated fade margin can go a long way to diagnosing the rare, but ultimately problematic impact path failure can have.

Antenna Trouble at the Empire State Building 

The master antenna system mounted on the Empire State Building suffered a major lower bay failure on Oct. 18, 2010.

Smith Chart Basics 

One good working definition of the Smith chart is that it is simply a graphical calculator for normalized impedance and associated RF parameters.

ERI-Electronics Research Precision Directional Couplers 

Fixed directional couplers

Radio Netherlands Worldwide Radio with Pictures 

Satellite radio images on TV

ERI-Electronics Research CS300 Series 

Broadband motorized switch

L-com Global Connectivity AL-D3W-05, AL-D3W-DT 

Lightning protectors

ERI-Electronics Research CD324-8DB 

8dB FM IBOC hybrid injector

ERI-Electronics Research MACX850 

MACXLine rigid transmission line

Transmission Line Maintenance 

The bottom line is that without maintenance, transmission line will ultimately fail. The good news is that with regular and periodic inspections, the likelihood of unplanned failures is greatly reduced.

ERI PWR-100D 

RF power sensor

Myat X-series 

Coaxial transfer switch

Kintronic Labs VSU-1 

Voltage sampling unit

Improvements in Filter Combiners 

Increasing the IBOC digital sidebands from -20dBc to -10dBc presents more challenges for broadcasters wanting to transmit from one antenna.

Mississippi Public Broadcasting Adds HD Radio 

In June 2009, Mississippi Public Broadcasting culminated a multiyear effort and inaugurated two-channel HD Radio transmission to all eight of its Class C FM analog stations.

Field Report: WorldCast Systems APT WorldNet Oslo 

Doug Irwin predicts that Oslo is well on its way to becoming one of those classic pieces of equipment that engineers will talk about for years to come.

Third-Adjacent Protection Review 

One of the hallmark missions of the FCC is to promote the use of the radio spectrum; the corollary is that the Commission ends up being a traffic cop to eliminate interference, more accurately stated as reducing interference.

The coming of HD Radio to WKSU 

WKSU had a major decision to make: Either add 5,000 square feet onto the broadcast center building or complete the installation of IBOC technology at its non-IBOC stations and further enhance the network with the implementation of multicast channel and program-associated data capabilities for each station.

Grounding standards for broadcast 

While there are similarities between various grounding methodologies, asking 10 engineers for their opinions will probably return a minimum of eight different and valid recommendations.

The Phasor 

The upcoming generation of radio engineers will encounter a new ease of measurement as a fact of the Commission's new directional antenna proof rules.

Field Report: Harris HPX 

It appears Harris did some serious homework on this transmitter. The controller is like nothing I have ever seen before.

Using the operating impedance bridge 

The development of the operating impedance bridge by Delta Electronics about 40 years ago made antenna impedance measurements not only much easier to perform, but more accurate.

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