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In a message dated 6/18/2007 11:00:49 PM Eastern Standard Time, davidgriffin@... writes: Although, Brian indicates 25% as the max circumference rather than 33%. Does anyone know why either of

Install a 160 meter trap at equal distance from the feed point (half way around the perimeter) of the loop. 73 Glenn K4DTT *** See what's free at http://www.aol.com.

My mistake on that drawing. It should have been a 1:2 transformer, which allows you to twist three pieces of wire together for the best possible coupling coefficient. For HF applications, Fair-Rite

Referring to the schema by Chris Trask http://www.home.earthlink.net/~christrask/New%20Source%20Follower.pdf I ask for help on the 1:3 transformer. What kind of (Amidon) ferrite ring core were

How large a diameter can you comfortably accomodate? Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? /

roguerat1 wrote: As long as your loop has a circumference much less than a wavelength, then larger is better. Think of this as an energy density problem. the passing waves contain a certain energy per

I'm going to build a passive inductive am bcb loop ant. Is there an optimum size that will give me good results? Is there such a thing as "too" large an inductive loop?

Hello John, Jim and Len, Thanks for your input. When I looked at those photos I at first thought it was for transmitting, however the air capacitor kind of threw that out for me. Since the loop

No, unless you live under a very repressive regime, you need Google's help http://www.google.com/ (or your own choice of major search engine). Then you may search to your heart's content and, if you

Seems to be these two: http://ph.groups.yahoo.com/group/loopantennas/photos/view/2446?b=3 http://ph.groups.yahoo.com/group/loopantennas/photos/view/2446?b=4 (I hope those links hold up ;-) This was

Hi Ed, Well the loop and coil are in series which will create a com

I want to use a ~265 foot horizontal 80m closed loop, on 160m what I need/want to do is open the far side of the loop when it is operated on 160m and close it for 80m and above how do I do that? the

It looks as though adding more wire, either in the form of a coil or additional turn(s) on the loop itself would have the effect of lowering the top and bottom freqs thus altering the freq range of

Hi Group, In the photo section under passin_thru2 ther is a loop antenna, 3rd and 4th photo that shows an octagon loop antenna. In the photo it shows a coil, just looks like heavy gauge wire coiled,

This message has a count of 17K but I read only 3 or 4K. Am I missing something ? John M. egza_eng2000 <egza_eng2000@...> wrote: i am eme i study communication engineering my project about

i am eme i study communication engineering my project about antenna i need your help to have searchs about types of antenna

Hi Nigel, I don't want to add fuel to the fire but please don't play on words ! I'm sure you are clever, intelligent and positive minded enough to understand what I mean in my post without further

In a message dated 16/06/2007 16:49:13 GMT Daylight Time, dominique.kremp@... writes: Hi Nigel, I don't want to add fuel to the fire but please don't play on words !

How can I get a schematic for the Degen DE-31 active antenna? Anyone nice enough to email me a copy? mwmwmfilms@... Thanks Chris

If the Wellbrook amplifier was in fact patented, the advertising would say so, and i don't think i have ever seen that. It would probably still be wise to "pot" it (epoxy encase it), because any