Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site mgweed.UUCP
Path: utzoo!watmath!clyde!burl!mgnetp!mgweed!rjr
From: rjr@mgweed.UUCP (Bob Roehrig)
Newsgroups: net.ham-radio
Subject: arrl propagation forecast bulletin nr 27
Message-ID: <10431@mgweed.UUCP>
Date: Tue, 3-Jul-84 13:15:37 EDT
Article-I.D.: mgweed.10431
Posted: Tue Jul  3 13:15:37 1984
Date-Received: Wed, 4-Jul-84 04:14:35 EDT
Organization: AT&T Consumer Products - Montgomery Illinois
Lines: 31


qst de k9eui
hr  propagation  bulletin  nr  27    from   arrl   headquarters
newington ct july 2 1984   to all radio amateurs  bt

the solar flux average for june  was  100.4,  the  lowest  this
year,  though there were two months below 100 in 1983.  perhaps
more significant is that there  was  only  a  19  point  spread
during  june.   these  facts  emphasize  the  difference in the
character of the sun in the low years of the solar cycle.

there will be less day to day variation in the solar numbers in
the  next  few years.  this will improve f layer propagation on
the lower amateur frequencies, at the  expense  of  the  higher
bands.   though  this  summer  has  been  poor  for  sporadic e
activity on 28, 50 and 144 mhz, this  is  not  necessarily  the
result  of declining sun spot numbers and lower solar flux. the
w6jkv 50 mhz expedition to greenland this past week produced  a
surprising  number  of qsos over a greater expanse of territory
than had been expected.  then at the weeks  end,  there  was  a
surprise  transatlantic  opening  to  the  channel islands from
northeastern  u.s.  and  adjacent  canada.   reception  of  the
gibraltar 6 meter beacon zb2vhf, and the british beacon gb3six,
was reported over a wide area in this country.

for  the  forecast  week,  generally  poor  hf  conditions  are
expected through july 5, improving july 6 and july 9 to 12.

american sunspot numbers for june 21 to 27 were between 39  and
54 with a mean of 47.9.  ar