as I got some emails regarding the relationship between the Solar flux, Sunspots, A-index and QSOs on LB there I am posting quick analyze from last few weeks...
All green line markers in the chart represents more than 2 QSOs on 60m band and 160m band outside EU in my log. In most cases I worked 5-6 QSOs on the low bands using 100W and my small antennas (base coil loaded half sloper for 160m w/apex 11m and inverted Z dipole w/apex 9m).
All of the good nites corresponding to a bit higher A-index and low Solar flux/Sunspot numbers in the chart.
Any comments from LB DXers are highly welcomed.
73 - Petr, OK1RP
Higher flux and SSN creates more D layer adsorption and more QRN as you see on 75 meters. With less SSN and Flux, the D layer is quieter, although perhaps only slightly, but enough to hear stations that are at the noise level with higher SSNs present.
ReplyDeletede K5YY