Someone recently mentioned the Wellbrook loop. I borrowed a Wellbrook loop for antenna comparisons a while back. Weak signals on MF that i could copy with my 1/4 wave inv L on MF and also my 160m inv
im really suprised on that large differential Mal - im presuming all your other wire antenna were grounded/non resonate during these tests? I would expect a dB either way dependant on your local nois
Hello Mal, It was me,2E0ILY. Thanks for the info. The Wellbrook loop is a large aperture wire loop, but as G0LUJ is a coastal location I think maybe that flatters the signals. I guess I should try a
I like struggling - sorry to quote but this appears apt. "Success is not measured by what you accomplish, but by the opposition you have encountered, and the courage with which you have maintained th
Two things: If there is almost no activity on LF, why is then QRN/QRM a problem? Or would there really be more activity if QRN would be lower? I can hardly imagine we would have a full band or at lea
Roger In your case from what you say it would be a good idea to move to the VHF/UHF region, others should consider your advice. Why struggle on LF/MF when you could do better with a lot less power on
Hi Mal and LF, Well, all I can say is that here the signal to noise ratio on RX is better on my PA0RDT than it is on my long wire (inverted 'L'). I have always thought this a bit strange, quite ofte
Hi Mal and LF, Well, all I can say is that here the signal to noise ratio on RX is better on my PA0RDT than it is on my long wire (inverted 'L'). I have always thought this a bit strange, quite often
Depends on how "gain" is defined. Larges antennas pick up more signal, but also more noise. It is the signal to noise ratio that is important, and this is no better than with smaller antennas. With a
Mal, farms out in the countryside ?? The reason is to get as much *directivity* gain as possible. BTW british military vessels since decades used to use tuned loops with a preamp for VFL/LW/MW operat
A Belgium Minister !!! in Belgium, I can believe that story although it could be true in any part of the Euro Zone. I heard the same story from a German man but he was talking about a water pipe resi
Hi Rik, Am 03.01.2012 13:38, schrieb Rik Strobbe: Depends on how "gain" is defined. Larges antennas pick up more signal, but also more noise. It is the signal to noise ratio that is important, and th
LF es MF Reports from across the pond and other DX locations as far as Tenneesee and Kansas using micro probe antennas are great for QRSS speeds but not suitable for audio reception. Take 160 metres
Om Pat Under this heading we are discussing Antenna merits. You seem to have veered off to something else. To set the record straight in the 50's the MODE was specified as CW FOR A PERIOD judged by t
Mal, If we are to engage in pedantics, I was born in 1943, it was later in the 50's that I became interested in amateur radio. The period to which I referred was MY experience (as stated). Under "thi
Doug If you want to HEAR the signals with sufficient strength to work normal CW . Large antennas of the kind I mentioned are normal on 160 metres for working long haul DX. Micro RX antennas are only
This is NOT the case at my QTH. The signal over noise is excellent because I live in a QUIET location S9 signal with virtually no NOISE from the large antenna. Why do commercial receiving stations us
Stefan, at certain moments the ongoing discussion reminds me of a (true ?) story: Some citizens were worried about a new high voltage overland power line close to their homes. They complained with th
Paul Whiskers but no CAT at this QTH. At least the Antenna discussion is now more civilised and humourous apart from Jim Boy and his personal insults and not relevant to the topic discussed. mal/g3ke
Mal loop. Using the calculator at http://www.66pacific.com/calculators/small_tx_loop_calc.aspx you can play with circumference and diameter. E.g. with 4x2m and 2cm tube diameter you would come out at
