K1SIX's 6M SPORADIC E & FAI RELATED INFO PAGE

    The information below focuses on multi-hop (at least TWO or more hops) instances of 50 MHz Es across the paths of interest shown in the table,  during Northern Hemisphere peak Summer Es season: May thru August.  Note that the peak Es season for the Southern Hemisphere also occurs during their Summer months, offset from the Northern Hemisphere by exactly six months.  Both hemispheres experience a minor, short lived peak during their Winter when multi-hop propagation is possible but relatively rare.  

To research summary archive files of K1SIX Summer transatlantic Es results for those years earlier than the link below,  click on the ARCHIVE FILES LINK below and look for files that contain xatlYYYY.htm (where YYYY is the year of interest) and simply click on them.  Always use the filename that contains the .htm extension if one is available.

**  Indicates a link that includes a downloadable ASCII (CSV) data file with a .dat extension that will be updated annually.  For diurnal database files, all times are given as LOCAL SOLAR TIME at the path midpoint and NOT UTC which is shown in the charts.  Diurnal .dat files will are available for only those Es paths that are largely East-West.   All .dat files can be read with a standard text editor like Windows Notepad.

Mid-Latitude Sporadic E (Es)- A Review by Michael Hawk

Sporadic E Reference Page

Es Papers from Mel Wilson, W2BOC are archived here (Tnx WA5IYX)

Article by Pat, WA5IYX

N3DB- Annual Transatlantic Es Results

UKSMG Archived Es Articles

N1BUG: FAI Description

DF5AI: European DX radius Aurora and FAI

DF5AI: North American DX radius Aurora and FAI

Best 73 es Good VHF DXing,
Bob Mobile, K1SIX (ex-WA1OUB)
Hillsboro, NH 03244 USA

If you have comments or suggestions, email me at b_mobile@conknet.com

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Accesses since 03 January 2005