At 17.33 23/12/02 -0500, Jeff Maass wrote:
>Are any of the many available propagation software packages
>of any use in predicting or tracking 160 meter conditions?
>
>73,
> Jeff Maass jmaass@columbus.rr.com Located near Columbus Ohio
>
>___________________________________________________________________________
>___________________
Hello Jeff:
the properties of propagation on 160 meter have attracted for years the
attention of the Topband fans. The 160 meter band is close to the so-called
electron gyro frequency, which is related in a complicated fashion to how
electrons spiral down the Earth's magnetic field lines.
Most software packages for HF propagation prediction do not reach below the
80 meter band because they don't take into account the gyro frequency.
In my pursuit of correlation between solar flux, sunspots, and A and K
indices of geomagnetic activity, I could not improve on the result of
others Radio Amateur and professional scientists.
For more informations you can read:
Propagation Broadcast and Forecast Demystified - QST Nov. 1991 - autor: NJ2L
The Thrill of 160 Meters - DXing on the Edge - Newington: ARRL 1998 -
autor: K1ZM
An Enigma Shrouded in Mistery - CQ Magazine Mar/Apr 1998 - autors: C.
OLDER - T. Cohen N4XX
Antenna Book Compendium Vol. 7 - ARRL 2002
Good reading and now I wish everybody " MERRY XMAS and HAPPY NEW YEAR "
Peter - IT9ZGY
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