ENIGMA 2000 Newsletter - Issue 21

March 2004
Articles, newsreports and Items of interest :enigma2000-owner@yahoogroups.com

Propagation and noise

Keith of Kent sent his logs [Tnx K] and also wrote on the variation of band conditions, as commented on Group, “Daytime conditions seem to vary greatly; a couple of days last week [letter dated 21.02] were terrible but at least it seems to improve after dark..”

Keith also offered some mention of noise, “I notice several people have commented on the amount sheer noise on the bands apart from the usual TV and Computer hash. It is mostly likened to a frying noise, I assume it is due to Solar Radiation and is at its worst when signals are weakest.” [Tnx Keith].

Keith took time to thank all the regular contributors who make the Newsletter enjoyable, mentioning that some seem to be on watch for 24 hours a day.

On 16^th February PLondon noted poor conditions on the 40 and 20M bands. On making comment via group he was informed that conditions were ok. The fact that the person who offered that was 3000+ miles away just goes to show how local these effects can be. A QSO with an IV3 30mins earlier on 20M confirmed that the condx were also poor in other regions. A local QSO with GB2ANZ also indicated by comments of those waiting to work the exhibition station [Anniversary of Battle for Anzio] that the conditions were poor on 40M and were being felt the length of Great Britain. Those poor condx, whilst not apparent in the US were apparent in Europe.