Topband: Mag loop 400W if possible.

[K1FZ-Bruce]

It does not take a lot of RF if conditions are right.  A few years ago 
I received a little 40 meters QRP transceiver for Christmas. Did not 
have a 40 meter antenna at the time. 
 
listened on my Beverage antenna, and everything was working OK. just 
for the heck of it, called a European and he came right back 559. 
 
I told him I was working QRP , the next transmission told him I was 
using a Beverage antenna and he signed off rapidly. 'Difficult to 
believe'
 
Loss is I squared R.   as the current is lowered then loss drops rapidly.  
 
73
Bruce-k1fz
 
www.qsl.net/k1fz/bogantennanotes.html
 
 
 

On Mon, 16 Nov 2015 08:27:17 -0500, Tim Shoppa  wrote:

       I have examined the RFI situation at some local apartment-bound 
ops on 40M
and I swear when they work into their loop that it is their apartment
wiring that is radiating, and not the loop antenna. It's gotta be worse on
160M. 

A guest op at a local contest superstation reported how hard it was to work
DX the first morning on the high bands, then went to check out the antenna
switching after a local with just a wire (aka me) was working the DX before
him. He found out that all the QSO's he had that morning up to that point
had been worked with a Heathkit Cantenna dummy load :-). Yes, it is very
possible to work stations just using a Cantenna! (Possibly circa 30-40 dB
down leaking into the beam, but I'm guessing feedline radiation can be
similar too.)

Tim N3QE