Laurence This is what I have found at my QTH. It stands to reason that the capture area of a small loop is no match for an array of resonant wires at 100ft in my case spread over about 5 acres of ope
A wellbrook loop is a very SMALL loop about 1M diameter. Plenty of elevated wire as high as possible is the answer on LF/MF MAL/G3KEV Hello Mal, It was me,2E0ILY. Thanks for the info. The Wellbrook l
Hi Chris, the quality of the received signal it determined by it's SNR. So if you have an antenna where QRM/QRN are at a higher level than the RX noise it makes no sense to get a larger antenna (= pr
Chris Signal over noise is different to max sensitivity. ie signal 10 dB noise 8 dB therefore S/N 2 dB but with a rhombic the same signal would be 30dB and noise maybe 12 dB therefore S/N would be 18
Dear Mal, LF Group, When I was in the business some years ago on LF/MF Rhombics and V-Beams were the norm de mal/g3kev Since rhombic and vee designs usually end up at least a few wavelengths long, an
I have done very many antenna experiments over the past 2-3 years to get a better signal at 73 and 136kHz from a small garden. I have experimented with inverted-L Marconis. These have mainly sloped d
G3XDV de PA0SE Mike, One a similar topic, what influences the capacitance of a multi-wire top section? Is it simply wire diameter so a thick wire has more capacitance than a thin wire? What about mul
IK1ODO de PA0SE I understand that your TX (if not you!) will go to Friedrichshafen. May you send a copy of the chapter to Friedrichshafen? I am very interested, even if my three-wire top hat seems t
The spacing between the wires on the horizontal top section is simply dictated by the fractional wavelength and the degree of efficiency required versus the mechanical and economical constraints of h
To All from PA0SE Software such as EZNEC gives the result that there is zero propagation along the horizontal with anything other than perfectly conducting ground, but we all know this is not so. Tha
No. Sorry if I was unclear. I have three top wires, 18m long, running parallel and spaced 0.5m apart. The wires have always been joined at the far end, and this helps reduce the corona losses. I also