Field Report: FM Services TLM-1
Here's a microprocessor-based system designed to monitor a tower's beacons, obstruction lamps, flash rate, photo control operation -- even the presence of an ATU heater bulb for winter months.
Transmission Line Pressure Monitoring
Dehydrators and nitrogen are the common gas sources, but are you absolutely sure of the line pressure and supply pressure?
Harris Flexiva
Air-cooled FM transmitter
Broadcast Electronics Portable Radio Systems
Emergency radio transmission
Barix Extends Feature Set for Reflector Service
Hosted by Barix partner StreamGuys, the application serves as an online center to configure and monitor the audio transport bridge while providing a relay of the audio feed.
V-Soft Communications XField
Relocation software
Method of Moment Proofs
At the heart of the moment method proof is a computer model using an appropriate software package, however, the moment method proof, is not applicable in all cases or array designs.
Phasetek P600-206-WP
Voltage sampling unit
ERI-Electronics Research 780/783 Series
FM band pass filters
Trends in Technology: Higher-power HD Radio
Looking to add or upgrade IBOC? Here’s what you need to know.
Lightning Basics
With all the mysticism stripped away, science clearly explains the causes and functioning of lightning. Ron Nott reviews the current best practices to mitigate lightning damage.
LED Obstruction Lighting Systems Give Back
LED lighting is a cost-effective approach to obstruction lighting.
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.
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