Carl Blare

After 2-hours going through threads here on the site, pouring over the Part 15 Rules and searching my many documents, I still am not sure. Is it possible to do FM leaky-cable over a given area?

Dear 15ers:

This Mall Moment will trim your tree for sure

http://www.youtube.com/user/AlphabetPhotography

Dear Part 15 Community:

Dear Part 15 Community:

Just off the press is Volume 1, Number 1 of The Low Power Hour, a radio program devoted to Part 15 and all low power broadcasting. The first program welcomes William C. Walker of wilw.com, a Rangemaster distributor, and an activist in the effort to launch LPAM licensed service.

http://kdxradio.com/demand.html

Select KDX2 for instant listening.

If you want the mp3 file, simply scroll to the very bottom of the Demand Radio page and enter ARCHIVE.

YOU may be next as a guest for The Low Power Hour!

Interesting project AM loop antenna, maybe usable in reverse for low power AM transmitter?

http://www.engineeringradio.us/blog/

December 21 this year is only a Tuesday, a few days before Christmas, but it is also the Winter Solstice, a very interesting astronomical event. It is the shortest day of the year, but since thereafter everyday is a minute longer, it is nature’s actual New Years Day.

Also don’t forget the Twelve Days of Christmas. Last year I attempted to re-instate all twelve days, but everyone else lost interest after the main Christmas Day.

Lights and colors are very good for the mood and we should discuss what happens when our 10-foot mast is draped with strings of lights.

Hello Fellow 15ers

Hello Fellow 15ers

By my blogs I’ve made it evident that I know a little but not a lot about the business of AM RF. Perhaps I’ve seemed flippant at times, but in the main I am very endeared to the low power hobby, and have utmost respect for all the sharing that takes place here.

I’ve explained that I see a corollary between acoustic science and that of electromagnetics, and have not been dissuaded from pursuing this point-of-view.

In acoustics some very long long wave-lengths have been packed into very small packages, and with our 3-meter antenna limit for legal Part 15 AM I believe every antenna experimenter is trying to do the same thing.

Somehow a blog on the web is not the place for a full technical paper on a subject but requires brevity, so I’ll limit what I say.

Think about the PZM microphone (PZM), which faces a capsule downward perhaps a 32nd of an inch toward a 5″X5″ groundplane, and manages to pickup the entire audio spectrum while canceling the normal standing-wave reflections that would occur with a normal microphone located many feet from the room boundaries. That’s why the PZM is also named a “boundary microphone.”

What would be the 3-meter AM radio version of the PZM microphone?