Hi Andre my experience is that the designers of LF antennas for professional use have different objectives to us amateurs. Whilst the ideas are interesting and instructive they dont all work when cru
Hi Marcel the original idea came from a Pat Hawker Technical Topics column. It was originally in a Canadian BC Journal and recommended for short free standing MW BC antennas. We did the experiments y
Hi Stefan you could try looking for SD-AUD20101. Dont buy from China buy from the US on eBay that isa bit more expensive depending on the postage. The descriptions are misleading some say mono mic bu
I have used mine mainly as an up to 48Khz signal generator I can use with my notebook. But I have used them on VLF. It is confusing because the bubble pack says mono mic input but they have a stereo
I havent used them seriously enough yet to answer those you need to ask Paul that Alan -- Original Message -- From: [email protected] DK7FC To: [email protected] rsgb_lf_group@blacksh
Hi Paul-Henrik, yes this is the one I suggested but make sure that iswhat is delivered (I would thinka German vendor should be OK) Note the picture with the buttons and LEDs and see that is what you
Hi Markus Ah you may not get the one pictured for 3.28euro, Paul and Terry had problems. I ordered from Amazon and got the wrong product replaced (my ordered item did say SD-AUD20101) and dont be sur
Hi Stefan, I'm not sure what point you are making here....maximum skywave daytime range is about 1000km so there is no ground reflection. However a receiiving station near seawater can get a "coastal
Graham if you had sent that to a group we have admin control over it would have been deleted, and you would have been put on moderation. To Graham and all others please do NOT send bare URLs to eithe
Hi Dave It may be getting geriatric like me but its still doing its stuff :-)) Alan G3NYK -- Original Message -- From: [email protected] DAVE PICK To: [email protected] rsgb_lf_group
Hi Fausto I think one of the best sources or access to possible owners might be the British Vintage Wireless Society.Try http://www.bvws.org.uk/ Alan G3NYK -- Original Message -- From: faustocoletti@
I think there is quite a lot of high angle off the side......the "null"is only at zero degrees elevation.?? Alan G3NYK -- Original Message -- From: [email protected] DK7FC To: rsgb_lf_group@blac
Roman the problem is that station transmitting elsewhere QRM local DX reception. It is up to those receiving to listen/watch in the right places :-)) Grabbers dont make QRM :-)) The selection of East
The problem with a monopole at LF is that the effective height is only half (approx) the physical height. For an inverted L where the top length is at least twice the height, the effective height is
The equations are in Rik Strobe's site http://www.strobbe.eu/on7yd/136ant/#Helical He quotes 1.9dB over a straight vertical of the same height compared with 6dB (thanks Andy) for the inverted L. BUT
Hi Wolf I think that has to be down to your ISP or possibly a node enroute. Alan G3NYK Strange indeed, no mails from the black sheep here for two days, and then suddenly over ten on friday (when i wa
No Mal we didn't "try" to close it, we would have succeeded only if everyone had accepted the Yahoo Group requested by the majority but some refused so following the concensus it was left running on
Hi Mal, I accept you definition, but democracy considers the "majority" of the eligible voters not the the just the activists, but it takes note of the concerns of the minorities and activists :-)) M
