Yesterday we had a 4-hour "Verbose SNR" session on 15m VK3 to 9V1 (S'pore).
It would have probably continued but the noise-level in urban Singapore increased in the evening hours due to domestic appliance radio noise emissions. The SNR graph clearly shows the SNR in S'pore (blue) deteriorating after about 10:00 UTC. (The law of reciprocity implies that for equal power levels at both stations, the average signal levels at both ends are the same.)
This session is a good example for the robustness of VarAC HF links.
Anyone with a longer "Verbose SNR" session please ?
73
Dieter, VK3FFB
Had another long Verbose SNR session with 9V1KG (S'pore) on 10m yesterday. The 6000km link was stable over most of the time, apart from short dips at 5:40 and 6:20UTC. This link was at an earlier time than the previous 15m session. So, less man-made noise at both ends. The good link also confirmed the return of normal conditions after the strong geomagnetic storm we just had.
73
Dieter, VK3FFB
Wow
Thats one looooooong link :)