From: utzoo!decvax!harpo!floyd!vax135!ariel!deimos!houxi!houxa!houxc!ad7i
Newsgroups: net.ham-radio
Title: Propagation Bulletin 46
Article-I.D.: houxc.297
Posted: Tue Nov 16 08:53:03 1982
Received: Wed Nov 17 01:53:35 1982


qst de w1aw
hr propagation forecast bulletin nr 46	from arrl headquarters
newington ct  november 15, 1982
to all radio amateurs bt

the solar flux rose from 139 november 5 to 168 on the 12th.  in the
same period of the previous solar rotation, beginning october 8, the
flux dropped from 137 to 131.  values have been higher than in the
previous rotation for ten consecutive days, and are expected to
remain so for a few more.  solar activity dropped off slightly on the
13th and 14th, but is expected to rise again through about the 21st.

based on current solar observation, the outlook is for mildly
disturbed conditions in the hf range november 15 through 17.
propagation will improve and the muf will be higher november 18
through 22.  the 50 mhz band has been open east and west in the
lower latitudes, and on transequatorial paths almost daily since late
october.  if there is to be high latitude east west communication
over long distances on 50 mhz this autumn, it will happen after about
the 18th, perhaps for the last time in this solar cycle.  hf
conditions will be more erratic november 22 through 30.  propagation
below 30 mhz will be generally good in early december.

american sunspot numbers for november 4 through 10 were between 60 on
the 5th and 88 on the 10th, for a mean of 76.  they will average
slightly higher this week  ar