[KCDXC] Fw: ARLP011 Propagation de K7VVV

[Steve Lufcy]

Subject: Fw: ARLP011 Propagation de K7VVV


> Sent: Friday, March 15, 2002 7:50 AM
> Subject: ARLP011 Propagation de K7VVV
> 
> 
> > SB PROP @ ARL $ARLP011
> > ARLP011 Propagation de K7VVV
> > 
> > ZCZC AP11
> > QST de W1AW  
> > Propagation Forecast Bulletin 11  ARLP011
> > From Tad Cook, K7VVV
> > Seattle, WA  March 15, 2002
> > To all radio amateurs 
> > 
> > SB PROP ARL ARLP011
> > ARLP011 Propagation de K7VVV
> > 
> > Next Wednesday is the vernal equinox, when the earth's position
> > relative to the sun makes daylight equal over the northern and
> > southern hemispheres. This is also a great time for HF DX. 12 and 10
> > meter conditions have been seasonally improving recently, but
> > worldwide DX on these bands should decline after the equinox.
> > 
> > With equal sunlight in both hemispheres, neither experiences
> > seasonally low MUFs, and neither has the problem of shorter band
> > openings due to shorter days.
> > 
> > Solar flux and sunspot numbers have been flat, and there haven't
> > been any big geomagnetic upsets this week. Average daily sunspot
> > numbers were lower this week by 38, and solar flux was down nearly
> > four points.
> > 
> > There was an M5 class solar flare on Thursday, but there is little
> > chance of it affecting us. The current outlook is for solar flux
> > staying about the same, but gradually rising over the next week to
> > around 200. Currently the short term peak in activity is predicted
> > for March 23-25.
> > 
> > Do you have propagation questions? Check K9LA's introduction to
> > propagation at http://www.arrl.org/tis/info/k9la-prop.html . You may
> > also write to the author of this bulletin at K7VVV@arrl.net .
> > 
> > Sunspot numbers for March 7 through 13 were 152, 133, 107, 114, 153,
> > 139 and 154 with a mean of 136. 10.7 cm flux was 179.7, 176.8, 184,
> > 179.3, 182.3, 178.4 and 184.3, with a mean of 180.7, and estimated
> > planetary A indices were 10, 4, 5, 9, 9, 10 and 5 with a mean of
> > 7.4.
> > NNNN
> > /EX
> 
>