ARRL

ARRL Propagation Bulletin ARLP010 (1996)

SB PROP @ ARL $ARLP010
ARLP010 Propagation de KT7H

ZCZC AP31
QST de W1AW
Propagation Forecast Bulletin 10  ARLP010
From Tad Cook, KT7H
Seattle, WA  March 8, 1996
To all radio amateurs

SB PROP ARL ARLP010
ARLP010 Propagation de KT7H

Solar activity was down last week compared to the week previous,
with no visible spots over five of the seven days.  Average solar
flux was down several points, and the average sunspot number was
only 7.3.

Geomagnetic disturbances were at a minimum, with plenty of periods
with the K index at one or zero.  Low solar flux and low geomagnetic
activity are ideal conditions for low frequency work on 160 and 80
meters.

Look for unsettled geomagnetic conditions centered on March 10 and
11, and the possibility of even more disturbed conditions around
March 22.

A slowly rising solar flux should peak in the mid-seventies around
this time also.  Watch for very stable conditions around March 29.

There should be some slight seasonal improvement in the upper bands
as we move toward the equinox on March 20.

Sunspot Numbers for February 29 through March 6  were 27, 0, 0, 0,
0, 0 and 24, with a mean of 7.3.  10.7 cm flux was 72.2, 71.9, 71.1,
70.2, 69.2, 69.1 and 69.4, with a mean of 70.4.
NNNN
/EX