[Lowfer] Help with loop please

[k2ors at comcast.net]

Don,

     For a short whip to be effective you need an extremely high input impedance preamp attached directly to the whip (so called 'e-probe' antenna). One of the best is the AMRAD active antenna:

http://www.arrl.org/tis/info/pdf/0109031.pdf

     This is a good article and gives some background on the design objectives of an active or e-probe antenna.

      Keep in mind that the whip will be omni-directional, if you live in an urban environment with a high noise level you will probably be better with off with a loop so that you can null out some of the noise sources.

--
73 Warren K2ORS
WD2XGJ     136-140kHz
WD2XSH/23 505-510kHz
WE2XEB/2   160-189kHz
WE2XGR/1 505-515kHz

FN42hi
http://www.w4dex.com/wd2xgj.htm