G3XDV IO91VT M0DSZ IO82LS Novel s/n / time 136k Signal is stronger in the Day than the night , over 220k path Assume its sky wave subtracting from the day time level ? 73-G, 2016-07-16 07:31:38 G3XDV
Well, I think the clue is in the phrase "signal to noise". The noise level is much greater after dark than in the daytime, especially at this time of year, so for the same signal strength the S/N is
Yes I agree 100 % with you Mike. Remember : in the years 1999 to 2003 there was a lot of CW activity on LF, and daytime was the best for QSO up to 800 / 1000 km. At night, only some more distant QSO
There was an extremely pronounced collapse in s/n for a specific time, I hadn't spotted anything quite so large before. It's a shame there weren't more stations transmitting on Opera or WSPR. Hugh, M
Could be Mike. that's the problem with measuring s/n , could be noise up or signal down ... + 20 dB lift in the noise over night ? The % fade would give a clue, if its higher and quite random , may b
Hi all. I had this test reports with G3XIZ. 3 reports on day time around 1100 TU and others at evening from 1820 to 2004 TU. For this RX test, the antenna was a 9 m base loaded vertical tube without
