ARLP033 Propagation de KT7H: August 9, 1996

Propagation Forecast Bulletin 33 ARLP033
From Tad Cook, KT7H
Seattle, WA August 9, 1996
To all radio amateurs

SB PROP ARL ARLP033 ARLP033 Propagation de KT7H

Solar flux is expected to go below 70 until August 22, and then peak around the mid-seventies again on August 28. The geomagnetic field is expected to stay stable over the month. 40 meters remains the best worldwide band at night, while 20 meters is most reliable during daylight hours.

W4VOS wrote a nice note pointing out an error in the text of ARLP031, which stated that there were sunspots visible on July 19, when it was really July 20 when we saw a sunspot count of 12. Also in the mail this week was a generous gift from W7EYE of the 1953 edition of The Sun, by Gerard Kuiper.

Sunspot Numbers for August 1 through 7 were 32, 34, 30, 29, 20, 13 and 26, with a mean of 26.3. 10.7 cm flux was 80.4, 79.6, 79.3, 77.6, 74.1, 73, and 71.6, with a mean of 76.5.

This week we have a special path projection from the United States for the Worked All Europe CW Contest this weekend.

From the East coast, check 80 meters from 0000z to 0600z, with signals peaking around 0230-0330z. 40 meters looks good from 2230z to 0730z, with strongest signals around 0030z to 0430z. 30 meters looks good from 2100z to 0330z and again from 0500z to 0630z and around 0900z. Strongest 30 meter signals should be from 2300z to 0300z. Check 20 meters from 1500z to 0130z, with the best bet from 2200z to 0030z. 15 meters may open around 1900z to 2100z.

From the mid-USA check 80 meters from 2230z to 1300z, with your best shot around 0130z-0300z. 40 meters should be open around the clock with the best period around 0100z and weakest signals around 0830z and again at 1800z. Check 30 meters from 1200z to 0430z, and 20 meters around 1430z-1530z and 2000z-2130z.

From the West coast check 80 meters from 0200z to 1100z, with best signals around 0400z-1000z. 40 meters should open from 0030z to 1300z, with strongest signals also around 0400z-1000z. 30 meters looks good from 1230z to 1600z and 2200z to 0600z, with strongest signals from 0200z to 0600z. Check 20 meters from 1430z to 0330z, with best conditions around 1700z to 2200z.