The killer app for IBOC
With the FM implementation of IBOC, standard broadcast stations will need to deal with a number of technical problems related to making IBOC work with RF propagation issues.
Field Report: V-Soft AM-Pro
Although there are many software options for evaluating FM stations, there are few software packages to evaluate AM stations. AM-Pro is perhaps the newest package available, and it is proving to be one of the best.
Shaping radio today and tomorrow
An early Gates transmitter and a look back at AM directional rules.
RF amplifier basics
A radio transmitter is a collection of stages. How these stages function determines the operational capability of each transmitter.
Field Report: APT/Pulsecom PCAU
Local telephone companies no longer support analog dedicated circuits. The PCAU gets around the limitation, as this review describes.
IBOC end to end
10 steps to determining the best digital migration path.
A station buyer's technical checklist
When a company decides to purchase a radio station, the station's technical plant is often overlooked by the buyer.
Radio's friend or foe?
New technology can be described as either emerging or breakthrough. IBOC is hardly breakthrough.
An IBOC roadblock
In the middle of May, the road to IBOC took a major detour. What has been an ongoing work in progress with a predictable slow and steady pace has been
Shaping radio today and tomorrow
WELL-FM's Western Electric transmitter, the first Picks Hits and the attendance trend at NAB.
Fixing signal problems
When reception trouble is reported, it's not always easy to find the cause.
Field Report: Broadcast Electronics FXi 60
WIBW, Topeka, chose a digital exciter for its analog needs today and its digital growth tomorrow.
The power behind the station's voice
When buying a new transmitter, you will most likely be replacing an old unit or building a new site.
Shaping radio today and tomorrow
The PR&E ADX, IBOC at NAB1994 and radio listening habits.
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.
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.
Field Report: SWR Illumitron
KKXS, Shingletown, CA, improves its signal with a new antenna. Read about it in this review.
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.
Digital Radio in 1994, John Battison in 1931
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.
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