Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site mgweed.UUCP Path: utzoo!watmath!clyde!cbosgd!ihnp4!mgnetp!mgweed!rjr From: rjr@mgweed.UUCP (Bob Roehrig) Newsgroups: net.ham-radio Subject: arrl propagation forecast bulletin nr 49 Message-ID: <13977@mgweed.UUCP> Date: Mon, 3-Dec-84 21:18:27 EST Article-I.D.: mgweed.13977 Posted: Mon Dec 3 21:18:27 1984 Date-Received: Tue, 4-Dec-84 08:45:03 EST Organization: AT&T Consumer Products - Montgomery Illinois Lines: 31 qst de k9eui hr propagation forecast bulletin nr 49 from arrl headquarters newington ct december 3, 1984 to all radio amateurs bt the gradual solar flux rise reported last week continued through november 26. its peak value, 86, the highest since early september, came a bit late in the autumn season to be of benefit, but it brought a welcome improvement in dx conditions on 21 and 28 mhz. two major active areas of the sun responsible for this new lease on life have moved around the west limb now, dropping the solar flux to 79. another area is due back this week, so a large decline is imminent. it is unlikely that the solar flux will reach levels used for propagation charts appearing in qst for november and december, so look for maximum useable frequencies and duration of dx openings somewhat lower than predicted. only moderate peaks of geomagnetic activity are expected until december 12, so propagation should be fair to good until then. of special interest to users of 28, 50 and 144 mhz is the annual gemenids meteor shower peaking december 10 through 14. short term ionization produced by these meteors burning up (garble) but large peaks in signal levels on these bands, at distances up to about 1200 miles. american sunspot numbers for november 22 through 28 were between 17 and 43 for a mean of 31.1 ar