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- SB PROP @ ARL $ARLP015
- ARLP015 Propagation de KT7H
-
- ZCZC AP29
- QST de W1AW
- Propagation Forecast Bulletin 15 ARLP015
- >From Tad Cook, KT7H
- Seattle, WA April 15, 1994
- To all radio amateurs
-
- SB PROP ARL ARLP015
- ARLP015 Propagation de KT7H
-
- Poor HF radio conditions persisted last week. Sunspots began to
- reappear after nearly a week of a spotless Sun, but solar flux
- levels have remained low.
-
- Solar flux was down below 75 almost every day last week. When it
- reached 72.6 on April 8 and 9, this was the lowest level of solar
- flux since February, 1987, well on the other side of the current
- solar cycle.
-
- Expect more poor conditions with low solar activity and geomagnetic
- conditions from minor to major storm. Solar flux should slowly rise
- to a peak around 100 at the end of the month, before dropping back
- to current levels. After next week geomagnetic conditions should
- stabilize, but then return to stormy levels by the end of the month.
- The unsettled conditions should continue well into May.
-
- Sunspot Numbers from April 7 through 13 were 0, 11, 11, 14, 15, 17
- and 21, with a mean of 12.7. 10.7 cm flux was 72.8, 72.6, 72.6,
- 75.3, 74.3, 73.9 and73.9, with a mean of 73.6.
-
- The projection for this week is from Seattle, Washington to
- Venezuela.
-
- 80 meters should be open from 0200 to 1030, peaking from 0330 to
- 1000. 40 meters looks good from 1300 to 0900, with the best period
- around 0300 to 0830. Check 30 meters from 0000 to 0700, with best
- conditions after the Sun sets on both ends of the path. 20 meters
- looks good from 1830 to 0430 with the best time toward the end of
- that period. 17 meters may be open from 2000 to 2330. 10, 12 and
- 15 meters do not look good at this time.
- NNNN
- /EX
-
-