[Elecraft] magnetic loop antennas

[Steve Stutman]

Loop can work well in an apartment. 

Good to know what is in/behind walls if possible. 

Voltages and field strengths can be very high so care is in order. 

Resistance in loop increases losses. 

With respect to copper versus less expansive materials. You get what you pay for. 

73 es GL
KL7JT







On May 20, 2013, at 9:43 PM, "Bill Blomgren" <billblom at nc.rr.com> wrote:

> I saw the great writeup on the magnetic loop antenna and the inventive High Voltage capacitor for tuning the thing.  I'm looking at one of them strictly because I'm stuck in an apartment.
> 
> The fact it should be good for 100 watts is perfect for what I'm looking at buying.
> 
> I'm just wondering about the copper pipe used for the outer loop... I spotted some very reasonably priced flexible conduit that could be used for the "loop" proper.  Do what is necessary to bond the capacitor into the rig, and it would appear to be a reasonable alternative to the rather pricy copper pipe. (They want your first born here for that, and the thieves are busy collecting anything that isn't nailed down.
> 
> Thoughts on that for its larger diameter, which should help with the coupling to the rest of the world... 
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