O'Reilly logo

National Association of Broadcasters Engineering Handbook, 11th Edition by Garrison C. Cavell

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter7.18

FM Combining and Filter System Design

Robert A. Surette

Harrison, ME

Shively Labs

Bridgton, ME

There have been many changes in the applications for filters, in today’s transmission facilities, in order to keep up with the ever-increasingly crowded FM spectrum. An ideal filter response curve looks like a perfect square wave as shown in Figure 7.18-10. Figure 7.18-47 shows a typical response when cross-coupling loops are added to a bandpass filter. The good news is with today’s computer programs and experienced technicians, while that elusive square wave has not been achieved, it is getting closer and closer every year. In general, these larger and faster computers are still using the same basic filter concepts in use since the early ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required