Running interference
WOR has encountered many positive results during its transition to IBOC. These tests were used to gather data on nighttime interference.
Field Report: Marti STL-20C
When STL transmitter and receiver products kept coming up short, we turned to the new, high-power STL-20C.
Field Report: SWR Illumitron
KKXS, Shingletown, CA, improves its signal with a new antenna. Read about it in this review.
Building a better radiator
As public rejection of tall towers has increased, radio engineers have been paying more and more attention to AM antenna design requirements in an effort to develop shorter AM antennas that are as efficient as their taller brethren.
Environmental, ground system problems
As the FCC continues to delete mandatory measurements and checks from the Part 73 rules, some unintentional traps are opened for the unwary engineer.
Shaping radio today and tomorrow
1994: The EIA and NRSC review seven DAR systems at NASA's Lewis Research Center in Cleveland. Also, On the air in 1931 and a llok at listener loyalty.
Shaping radio today and tomorrow
A look back at the Philips DCC, an increase in high-speed Internet access, and 10 Years of Radio looks back at the IBOC tests of 1994.
Legacy equipment
Why buy new when the existing equipment still works fine? Keep some of that vintage equipment running right.
Often-forgotten FCC rules
Ignorance of the rules is not a valid excuse when an inspector comes calling. Here are some of the frequently overlooked rules.
Shaping radio today and tomorrow
DAB from January 1994 | The debut of the Wheatstone A-300 | Satellite radio subscriber projections
Say goodbye to the weakest link
Now that the FCC has accepted IBOC, we will see even more improvements as sites are updated with digital exciters and solid-state transmitters. With all of these advances in technology, don't overlook what can become the weak link: the method used to get the audio from one location to another.
Standing waves and antennas
When problems of abnormal VSWR occur, they generally result from mechanical or electrical damage due to the transmission line or antenna, and frequently to heavy ice formation on the antenna.
Test your RF system
Modern equipment is stable and reliable, but some things should be checked on a regular basis.
Digital radio launched
In October the Commission announced procedures that allow AM and FM stations to immediately begin interim IBOC digital transmissions on a voluntary basis.
Motorola Symphony Digital Radio
A look inside the radio chipset that promises improved reception without the costs of digital transmission conversion.
DA maintenance
With the FCC's reduced logging requirements, there is no excuse for a directional array not to have adequately written maintenance logs.
Shaping radio today and tomorrow
The oldest transmitter in daily use | Crown | S-DARS awareness
Simple solutions for a stress-free system
A robust transmission system is one that provides superior signal and audio quality, and provides this superior product even in adverse conditions.
The Right Choice in transmitters
There are several factors to keep in mind when it's time to select a new transmitter.
The folded unipole
The fundamentals of the folded unipole have not changed much since 1952, but experience has provided several improvements as well as some weaknesses.
Multitenant towers
The use of somebody else's tower can be attractive, but before rushing into a contract with an existing tower owner, consider all the problems that can occur.
Diplexing AM transmitters
When vertical real estate is at a premium, diplexing AM stations may offer an cost-efficient alternative.
Lightning protection
with proper engineering precautions, towers can survive intense lightning attacks.
Field Report: Armstrong FM-20000T
This single-tube FM transmitter is reviewed.
Grounding and signal problems
Adequate grounding means different things to different engineers.
Previous | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Next
