Despite the hiatus in nighttime operation for AM IBOC, antenna research is continuing in an effort to comply with the FCC's existing requirements of two antennas for FM IBOC, and develop a system using one antenna that will satisfy the FCC's requirements.
The Durst Organization, the real estate management company of The Condé Nast Building (4 Times Square) in New York City has undertaken the massive project of tripling the height of the tower high atop the building, coming into its own as a premier transmission facility.
If you want to know who is investing money into FM subcarriers, look no further than the computer giant Microsoft.
So much happened last month, so there is lots of ground to cover.
Because of inductive and capacitive circuits, it is often easy for undesired and usually unwanted oscillations to be generated in an amplifier stage. Neutralization is important to keep these systems at maximum efficiency.
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.
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.
An early Gates transmitter and a look back at AM directional rules.
When a company decides to purchase a radio station, the station's technical plant is often overlooked by the buyer.
A radio transmitter is a collection of stages. How these stages function determines the operational capability of each transmitter.
Local telephone companies no longer support analog dedicated circuits. The PCAU gets around the limitation, as this review describes.
10 steps to determining the best digital migration path.
New technology can be described as either emerging or breakthrough. IBOC is hardly breakthrough.
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
WELL-FM's Western Electric transmitter, the first Picks Hits and the attendance trend at NAB.
When reception trouble is reported, it's not always easy to find the cause.
WIBW, Topeka, chose a digital exciter for its analog needs today and its digital growth tomorrow.
When buying a new transmitter, you will most likely be replacing an old unit or building a new site.
The PR&E ADX, IBOC at NAB1994 and radio listening habits.
WOR has encountered many positive results during its transition to IBOC. These tests were used to gather data on nighttime interference.
When STL transmitter and receiver products kept coming up short, we turned to the new, high-power STL-20C.
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.
KKXS, Shingletown, CA, improves its signal with a new antenna. Read about it in this review.
As the FCC continues to delete mandatory measurements and checks from the Part 73 rules, some unintentional traps are opened for the unwary engineer.
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.