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.
Myat X-series
Coaxial transfer switch
Kintronic Labs VSU-1
Voltage sampling unit
ERI PWR-100D
RF power sensor
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.
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.
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.
Field Report: Audemat Relio
With IP, dial-up, multi-level multi-user, lots of channel capacity, graphic user interface and graphic programming, the Audemat Relio was just what KUT Radio was looking for in a remote control.
WILQ rebuilds transmitter site
In the wee hours of the morning the logging truck was hot-wired and taken for a ride on top of Bald Eagle Mountain, the location of WILQ's transmitter site. The driver proceeded to drive the truck straight through the front of the building, using the front door as a target.
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