All agreed in principal but there is one nail you forgot the LF band hr is only just over 2Khz wide I get the impression from Bill's comment that he, and others, think QRSS is a wide band mode. All
Jack has been transmitting on 136.5 all week . His current schedule is as before qrss on the hour and half hour for ten minutes. During the week he does this up until 0000 Z . He starts at 2100Z On
Nice one Roger! Readers who retain old copies of the journal RadCom will have seen two historic photographs of a distinguished experimental physicist which appeared in the April 1944 and May 1944 iss
Good on yer Steve... Various nails hit squarely on their heads! Dave G3YXM I endorse Dave's comments. Puts the issue into nicely into perspective. Regards, Peter, G3LDO <[email protected]>
For the last years I keep note of the stations and hear, about a year ago I had about 20 stations in CW and about 5 stations in QRSS over a weekend. Now I have about 10 stations in CW and still abou
I guess Laurie will be transmitting tonight 30sec. dots with dot/dash ratio of 2:1. using 135.922 Khz. I will join in on 135.9130 after I get back from the radio club at around 2300UTC and transmit u
Hi Rik, I did a little test on saturday afternoon : I did put the lower part of the loading coil (that is normally in horizontal position) vertical (directly under the wire). I did measure the antenn
"What is vector potential ?" Roger has answered: ......, mathematically it is just a mysterious function, first recognised circa 1850, >.which, when it curls, produces the .magnetic field. Hence the
Well done Peter and Brian, is this the first QSO from CT1? It was Brian's first QSO so I guess it must be I sympathise about the insulators, with QRO it's a battle just to keep things running... Yes
My antenna is a sort of two-wire inverted (cross between an inverted L and a V) as shown in Fig 4.9 of the LF Experimenter's Handbook. The top spacer was insulated from the mast by a couple of cerami
Fig 3 in the Low Frequency Experimenter's Handbook update on http://web.ukonline.co.uk/g3ldo contained the wrong image - it was Fig 4. I have checked all the other illustrations in Appendix 1 and the
The loading coil is not just a matching device, it is also a primary source of vector potential and it is the vector potential, rather than its offspring, the magnetic and electric fields, which is
I have posted an Addendum and Errata to The Low Frequency Experimenter's Handbook at http://web.ukonline.co.uk/g3ldo/ . This information will shortly be included in the Book Shop of the RSGB web site
Further to Walters e-mail: Gamal says it all. It was impossible to keep the Decca coils tuned accurately and maintain phase constancy without the copper screening. There is a photo in the Low Frequen
Larry, The goal is not a wide audience! The goal is a two way LF QSO over the North Atlantic. A new train had left the station, some will jump on board, some will choose not to jump on board, some wo
From Larry special event etc. In the UK there is a legal requirement for an amateur radio transmission to be regularly identified with a callsign. I guess it must be different in Canada As soon as we
Transmitting tests on 137.790 from VA3LK will start again today from 20 utc to 03 utc for the next three days. The signal will be long dashes from 1 to 3 mites long, a different dash length will be u
I went out last night (Friday) and did not transmit. When I came back I checked the band. VE1ZZ was very strong (almost audible) giving OK1FIG a 'O' report at 0010UTC. Went to bed and checked next mo
An item has been added to the LF Book Addendum regarding a formula for designing a loading coil for maximum Q. Interestingly, the results agree roughly with the experimental work done by Bill Bowers,
Alan Melia schrieb: the Hi Alan, Hi Dick, I`m testing lf-antennas since two years using a homebrew-bridge. I do not trust the measuring-results achieved with that bridge. changing the symetric compon
