It is very stable and crude DF checks with a loop put it arriving north or south Hi Laurie, There is a rather easy way to find out wether it is north or south : 1. Take minimum bearing with a loop (o
Taking into account that SXV is abt 1000km east and 1600km south of central UK it might be less of a problem in Cananda than we think. My impression is that the UK-VE path is already 6dB to 10dB bett
Regarding the plots of the CFH recordings (18/19 december 2000) on my webpage : 1. All received datafiles were averaged in 1 minute periods, to surpress static crashes etc... 2. All datafiles were 's
here in Germany, as soon as you use light for communication, you can only do that with a license ! In that case : - all traffic lights need a licence (the colour of light tells you wether you can pas
Mike is 200% right, just look at the meaning of ERP : Effective Radiated Power regarding Mals question : Why do the 'commercials' on LF use giant antennas ? 1. Because they want a certain ERP (let's
Due to some days of vacation I was 'e-mail-less' for about 10 days. During the holiday I converted the datafiles I received from the 'CFH recordig night' of 18 december into graphs. These can be foun
Hi Steve, But a strong intermittent carrier is clobbering 136.5 kHz, the most commonly-used frequency for normal CW operation. Did anyone else hear the QRM? Could it be a rogue QRSS transmission? The
Hi Steve, I managed to get the helium-filled balloons up to 27 m last night (Friday) from my small garden, and had good QSOs with Dave GM3YXM/P (New Galloway); Wolf DF0WD; and Werner ON6ND. I also he
Hello group, Most HF-rigs have a "push-pull" PA that has an input and output transformer. It are most likely these transformers that determine the lower frequency limit. I believe to have read an art
Saturday afternoon I was in the shack and had ARGO running (at 3sec/dot) while being otherwise occupied. at 17.50 I saw a very faint interruped line on 137701, 'T' copy at best. It seemed 10sec/dot Q
Hello Brian, thanks for the description of your antenna system. all constructed in 2.5mm aluminium wire. I think you wrote a little note on alumium wire. Alumium can be a valid alternative for copper
Hi John, I believe that the 'basic rule' with an elevated loading coil is that the current remains constant from the bottom end (feeding point) up to the coil and will drop linear from the coil towar
I can confirm the results that Mike got. Last year I added a 2mH loading coil at the top of my inverted L (at that time 11m high with a topload consisting of 3 parallel wires spaced 75cm and 25m long
At the moment I am working on a new version of QRS that allows longer dotlengths (up to 1 hour/dot) and has more precise timing. As I hope to reach most users of QRS via this reflector I have one que
Hi Vaïno, have a look at : http://www.lf.thersgb.net/transatlantic1.htm 73, Rik ON7YD May we outcasts from the most Northern EU request for: 1. A chronological list of succesful qso's (1-way/2-way),
Maybe now the moment has come that the committee of the 'Peter Bobek Award' takes a clear desicion under what circumstances a QSO on 136kHz is valid (for the award). I believe that the 3 societies in
With tools as ARGO you can watch a 'frequency window' that is many hundred times the resolution, so I believe that accuracy is not so critical as the frequency stability. To take optimal advantage of
Hi Rich, Just a wild guess : Could the "DV-AQ" sequence have been G3AQ, where G was corrupted to D and V- was 3 ? Don't know if Laurie (G3AQC) was on yesyerday. 73, Rik ON7YD Yesterday I received an
About the "Peter Bobek Award" : From 1997 on, when my interest in LF started, I was furtunate to have regular e-mail contact with Peter who gave me a lot of advice. I believe that he was one of the f
Hi David, as far as I know 90% of all 136kHz transmitters used in Europe are straight CW transmitters with no possibility to modulate SSB. So the most easy (and efficient) way to get QRSS is just key
