Path: news.cs.tut.fi!news.funet.fi!news.tele.fi!uunet!psinntp!arrl.org!usenet
Subject: ARLP036 Propagation de KT7H
Newsgroups: rec.radio.info,rec.radio.amateur.misc
Followup-To: rec.radio.amateur.misc
Approved: mtracy@arrl.org
From: w1aw@arrl.org
Organization: American Radio Relay League
Date: Fri, 02 Sep 1994 11:29:21 EDT
Message-ID: <$arlp036.1994@ampr.org>
Lines: 47
Xref: news.cs.tut.fi rec.radio.info:6068 rec.radio.amateur.misc:58071

SB PROP @ ARL $ARLP036
ARLP036 Propagation de KT7H
 
ZCZC AP50
QST de W1AW  
Propagation Forecast Bulletin 36  ARLP036
From Tad Cook, KT7H
Seattle, WA  September 2, 1994
To all radio amateurs 
 
SB PROP ARL ARLP036
ARLP036 Propagation de KT7H
 
Solar flux is up slightly from last week, and with the A index in
the single digits, disturbances remain quite low.  The flux may rise
to around 90 in the next few days, and then spend half of September
dropping around 20 points.
 
Soon we will be moving into Fall propagation modes, which should
show some improvement in worldwide coverage at higher frequencies.
The maximum usable frequency will be limited though by the low
activity as we slide toward the solar minimum.
 
Sharp eyed K8MLV noted that on August 9 WWV reported a solar flux of
75, while this bulletin reported 73.5 for the same date.  Our
Canadian source for solar data transposed some digits, and the
correct value was 75.3.
 
The outlook for this weekend's All Asia DX Contest is fairly good,
with solar flux a little higher than it has been in awhile, and no
disturbances expected.
 
Sunspot Numbers from August 25 through 31 were 15, 18, 14, 22, 24,
45 and 59, with a mean of 28.1.  10.7 cm flux was 71, 72, 71, 71,
77.6, 83.1 and 82.3, with a mean of 75.4.
 
The path for this week is from Dallas, Texas to Japan.
 
80 meters should be open from 0900 to 1200z, and 40 meters from 0830
to 1300.  30 meters should be good around 0730 and again from 1200
to 1400.  Check 20 meters around 0530 and again around 1330.  17
meters looks good from 2200 to 0200.  On most days 15 meters should
open around 2230 to 0000.  12 and 10 meters do not look promising at
this time.
NNNN
/EX