A second flare event a 1338 utc has occurred a few minutes ago, the magnitude is unknown as yet. Larry VA3LK The really useful site at: http://www.dxlc.com/solar/index.html says: Comment added at 08:
Following yesterday's X and M flares, conditions appeared to be improved last night. OH1TN was 559 with me - stronger than normal - and CFH was S7 from about 2030 (still daylight in Canada) which is
What an exciting weekend! My best DX on 73kHz doubled and several new stations worked. Conditions were good with CFH audible in the noise most of the day. Friday 3 March Went on 73kHz as DF6NM was li
This time difference causes both the significant increase and decrease of the signals we observe (and we can use the increase for DX communications of course!!). Michael Sanders, PA3BSH Does this acc
Nice Xband QSO with Dave, G3YXM, last night. QRB 910 km. The signal was quite strong and could probably break the 1000 km barrier. When Dave called on 71.8 I've seen another signal, just a few Hz bel
Now Rugby is back to normal. I've included two spectra with it being off and on <Rugbyoff.zip, 8kB>, so you can compare. This is fascinating as it shows that, even at nearly 1000km the sidebands are
I was on 73kHz last night and again this morning, but seem to have been beaten to the DX by M0BMU and G3YXM. I will be active again on the band, looking for crossband QSOs on Saturday and Sunday morn
Due to its directivity, a short vertical monopole has a gain of 2.6dB over a dipole (4.77dBi versus 2.15dBi for a dipole). Careful! Surely this assumes perfect ground, doesn't it? Even at HF, I think
ON7YD wrote: Now we take the real-world case and assume a loss of 100 Ohm (environement + coil). If we put 100W into this system we will have an antennacurrent of 1A and radiate 8.2mW (-42dB compared
exceeded the rules have to be observed, and include things like providing lights and notifying the CAA. The maximum for kites is 200ft (just over 60m), so I presume that balloons are the same. Mike,
I will be using QRSs on 71.80kHz this evening (17 March) and early tomorrow morning, looking for crossband QSOs with 137.7kHz, or e-mail reports. 73 Mike, G3XDV (IO91VT) http://www.dennison.demon.co.
For what it's worth, I now operate very easily with the station optimised for both 73kHz and 136kHz with a fairly fast manual changeover. The connection from the antenna to the coil can be made eithe
Geri, DK8KW wrote (with a smile): is QRSS really computer generated? Wow, thats the reason all your signals are keyed thah exactly! I allways sit here and key down (to make things easier with my left
We had an interesting LF test round last Thursday night with most signals in the South Island enhanced by around 12dB. This coincided with reports of aurora although there was no sign of flutter on 8
I also believe that all short verticals have the same basic radiation pattern (the upper hemishere of a doughnut, with low angle suckin if ground loss is significant). I was privileged to see Dud Ch
As I have not heard a single 73 Ham signal for ages I will put the beacon on for extended periods during the next few days in the faint hope that I may get a report from somewhere, even perhaps conti
Been too busy to post weekend reports recently, but I have spent some time on 73kHz, and have made more QSOs in the last few weeks than in the first two years of the band being available (reason is g
However, I'm a little concerned about the prospect of two dozen individuals phoning the RA trying to get various NOV's for higher power / changes in main station address to avoid /P etc. It may appea
A 'severe solar wind shock' impacted Earth at 1632UTC yesterday. This resulted in a big aurora, The A Index is 56. This is higher than early February when VA3LK was getting good signals from DCF. It
