Impedance matching 

We have all been taught that the load impedance must match the generator impedance in the case of non-DC voltages in order to obtain the most efficient transfer of power. In DC work it seems that loads with an improper resistance fail to work because the supply voltage is too low, or else burn out because their resistance is too low for the applied voltage, and simple Ohm's law applies.

Let your light shine 

The events of recent days have brought much attention to the broadcast media, as is often the case in periods of crisis. It is times like these when the true value of broadcasting shows through, and the routine, day-to-day priorities of the business fade in importance. The nation huddles to stay informed via news broadcasts, or to discuss issues on talk radio, and eventually to escape and return to normal with sports and entertainment programs.

New Products (Oct 2001) 

RFS Broadcast Rapid Fit | AETA Audio Mix2000 | Yellowtec IP/Digital | AudioScience ASI4113 | Neutrik EtherCon | Samson S phone | Broadcast Software International TimeShift | TC Electronic DBMAX 2.60 | RCS Tracker | APW Enclosures RackMaxSM | Broadcast Tools DAS 12.4 | Henry Engineering MoniSwitch

Billing and collections 

A few issues back we talked about bookkeeping basics and how a variety of inexpensive software packages will keep track of your business' receivables and generate invoices and statements. While these programs are great labor savers, they are designed around some basic rules that apply to the use of palm pilots and ledger books.

Noncommercial applicants to avoid auctions 

Concluding that “inartful drafting is not the same as ambiguity,” the U.S. Court of Appeals for the District of Columbia Circuit found in favor of National Public Radio in an appeal from the Commission's prior determination that noncommercial educational (NCE) stations would be required to take part in an auction if they decided to file for non-reserved (commercial) frequencies.

New Products (sep 2001) 

Armstrong Transmitter | Bird Electronic | Eventide | IDT Impact Development | MediaFORM | Neumann | Shure | Sonifex | The Hollywood Edge, Soundelux Microphones | Yamaha

Class reunion 

Radio is the only truly “personal” medium, nearly always experienced by many separate, simultaneous audiences of one.

Tuning in satellite radio 

From when the satellite radio licenses were first issued, I have been asked repeatedly if satellite radio will succeed. My answer then was a resounding maybe...

Field Report: WireReady 

Paul A. Litwinovich reviews this radio automation system.

Arbitron Market Ranks for 2001 

The revised radio market rankings from Arbitron include data from the 2000 Census.

Computerized planning and station engineering 

In the early days of radio engineering, it was necessary to calculate every value used in determining coverage and antenna design manually. Slide rules were the norm, and many engineers carried one in a hip holster -- well, almost. My slide-rule case certainly had a belt slot in it.

Cabling for the next five years 

As the demand for faster networks increases, so does the need to provide the best and most efficient medium for the data to travel. Twisted-pair cable has been around since the early days of the telephone, but was only considered a viable medium to carry voice or very low-speed data.

Switches and Hubs 

This month we will look at a the Ethernet switch.

Reader Feedback 

PDAs, GDC, LPFM and Purchasing.

Rules for Digital Auxiliary Services Proposed 

In an ever-evolving effort to smooth the transition from analog to digital technology, the Federal Communications Commission is proposing to revise its rules to allow broadcast auxiliary services (BAS) to convert to digital technology along with broadcast stations.

Thoughts on FM 

I often wonder if Major Armstrong knew what he was giving to the world when he began developing frequency modulation as a public service.

Watch Those Hands 

I am sure you have cursed another driver for paying more attention to his cellphone call than to the road. The sensory blitz of everyday life is hard

Field Report: RadioSoft Comstudy 2.2 

ComStudy 2.2 is a suite of RF study tools, the primary functions of which are the prediction coverage and interference, along with the study of AM and FM allocations. The software also supports TV and land mobile; however, my version does not support those functions. If I had to describe this software in just a few words, I'd have to say, feature packed.

Back to School 

What we know about using the Web today may be akin to a 16th century map of the western hemisphere.

Hiring Technical Staff 

The hiring of technical staff is critical to any operation. A typical broadcast operation relies heavily on computer technology not only for its office functionality, but also for its program production and delivery. Many companies seek broadcast engineers who have a good balance of knowledge and skills in the area of computer hardware and software as well as video, audio, and transmission.

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