ARRL

ARRL Propagation Bulletin ARLP044 (1996)

SB PROP @ ARL $ARLP044
ARLP044 Propagation de KT7H

ZCZC AP64
QST de W1AW
Propagation Forecast Bulletin 44  ARLP044
From Tad Cook, KT7H
Seattle, WA  October 25, 1996
To all radio amateurs

SB PROP ARL ARLP044
ARLP044 Propagation de KT7H

Solar activity was still low last week, but there was more
geomagnetic activity.  Conditions were disturbed over the past few
days, and the average A index was about double this week when
compared to the week previous.

Disturbed conditions are expected to fade through this contest
weekend, and then become upset again around November 9 and again
around November 15.  Solar flux is expected to stay about the same.

Last week an error was reported here when the times listed for
updates of the K indices on WWV was on the hour every three hours.
Actually it is broadcast at 18 minutes after every hour on WWV and
45 minutes after on WWVH, so new K indices will appear at 0018,
0318, 0618, 0918, etc.

Sunspot Numbers for October 17 through 23 were 0, 0, 0, 0, 11, 0 and
0, with a mean of 1.6.  10.7 cm flux was 68.5, 69.6, 71, 71.3, 69.7,
69.8 and 67.8, with a mean of 69.7.  Planetary A indices for the
same period were 6, 21, 31, 15, 7, 28, and 35, with a mean of 20.4.
NNNN
/EX