New Site on Magnetic Loop Antennas

Recent updates to my site:

->Images and Notes from other Loop Builders

http://www.standpipe.com/w2bri

Also, working fast on finishing a complete step by step guide to building your own magnetic loop.

73,

Brian, W2BRI

 

W6TH,

I've not ventured outside of twenty meters with my two loops. Are the other bands active at all? My S.T.L. will tune to 18MHz. perhaps we can meet one Saturday morning on 17 meters. My quarter-wave vertical with drooping radials up twenty feet is my power antenna. A hundred watts to it and I can bring in Europe quite well. The loops are just experiments. I'm intrigued and amazed something small as them work over hundreds of miles. In time the loops will be mothballed. But the vertical stays.


73

Kraus

 

Just took a look at your new website.. I think its just great. Glad that someone with true amateur spirit still is around to share knowledge and experience with the rest of us. Believe me if I had known about this website in 1952 I would have gotten on the air with a Magnetic Loop Antenna.. Copper tubing was cheaper in those days and you could get surplus vacuum variable capacitors for a song off of the surplus market. Oh well, I guess my timing was wrong. Keep up the good work, and lets get a bigger picture of the dog. He looks like a good Scout.

73's Allan AE2J :

 

Have you done any testing with large diameter Coax?  I have at my disposal some 1 5/8" It is flexible hardline that is actually AL with a copper plating for skin...

Since I work in Broadcasting I might be able to aquire a short length of 3-1/8" Coax...  Hummmm... 160 * .25 = 40 meters... well mebe not THAT much!

 

I should mention that in the late 70's I had a DDRR (Discontinuity Directional Ring Radiator) which is essentially a horz. loop with an intregrated ground plane.  It was about 8' in diameter made of 2-1/4" auto exaust pipe and used (at first) a glass peanutbutter jar lined and covered with AL foil as a cap... It worked fine, on 20 and fourty!  that is until I raised the power input to about 100W from 25...  the jar exploded!

With a vaccuum var cap it handled the high voltage no problem.  I checked into the SEA net from Sagami Japan regularly with it.

 

Don't let some of these guys get you down. Writing something and putting it on QRZ seems to allow criticism even about a good topic. I know. I had a good topic and was received the same crap. Keep us informed about how things are going.

 

Update:

More sections added on how to build your own Mag Loop.

Most of the instructions are complete -- enough to get you on the air...so enjoy.

BTW-- I am looking for contributors for the site. If your interested and have pictures and stories I'll post them.

73,

Brian, W2BRI