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    This section examines the repeatable characteristics of long-haul, multi-hop, 50 MHz Sporadic E in the Northern Hemisphere.  Understanding these characteristics will allow the avid 6M DXer to leverage on these knowns to realize maximum benefit. The repeatable characteristics are SEASONAL and TIMING (Diurnal) for the path of interest. Correlations to Solar Elevation Angle are included with a focus on statistics. The Es_Predict Utility attempts to statistically predict specific paths based upon a specific diurnal model of choice and a sliding time scale that is keyed to the Local Time at the path midpoint. This tool also includes path analysis and a KML Generator that allows plotting the path(s) of interest on Google Earth.

MS Excel Es_Predict v. 3.00 Utility updated 8/29/2015. Right Click- Save target as...


50 MHz Single Hop Es Range Estimates v.3.0



50 MHz Long Haul Es Probability from MULTIPLE SOURCES (UPDATED 2015)


50 MHz Transatlantic Es Probability for Eastern North America 2014 (tnx VE3EN)


2015 Seasonal Comparison of VE3EN and K1SIX Daily Probability



Fig 1A. K1SIX Observed Transatlantic 50 MHz Es Days open by year 1982- 2015


Fig 1B. K0GU Observed Transatlantic 50 MHz Es Days open by year 2000- 2015


Fig 2A. K1SIX Cumulative Opening Intensity By Date 1982-2015


Fig 2B. K1SIX 1982 - 2015 Experimental Derived Quality Factor By Date


Fig 3. K1SIX 2015 SEASONAL Baseline Transatlantic 50 MHz Es Probability CHART (for 14.4 sq. mi. resolution)


Fig 4A. K1SIX 2015 SEASONAL Baseline Transatlantic 50 MHz Es Probability TABLE (for 14.4 sq. mi. resolution)


Fig 4B. 2015 Derived equivalent SINGLE-HOP 50 MHz Es Probability TABLE (for 14.4 sq. mi. resolution)


Fig 5. K1SIX Transatlantic 50 MHz Es Diurnal Variation CHART 2015


Fig 6. K1SIX European F2 for comparison against Es Diurnal


Fig 7. 2015 Updated UTC to LST Correlation for path of interest


2015 Correlation of Diurnal maximum- K1SIX (Eu & N. Africa) vs. K6QXY (JA)


1995 - 2004 EA7KW Diurnal for North America Es Paths

2015 UPDATED K6QXY Diurnal for JA Es Paths

2015 UPDATED K6QXY Diurnal for KH6 Es Paths

2015 UPDATED K6QXY Diurnal for KL7, VY1 & VE8 Es Paths

2015 UPDATED KL7KY Diurnal for European Es Paths



2015 K0GU Diurnal for Au Zone crossing Es QSOs with Europe and N. Africa


2015 K0GU UTC to LST Correlations and midpoint Solar El for paths of interest


2015 UPDATED Compilation of K6QXY Es QSOs with Europe


2014 UPDATED Compilation of K1SIX Es QSOs with the FAR EAST



2015 UPDATED K1SIX- 4 Meter Transatlantic Crossband Test Results




K1SIX Compiled Logs- Cycle 23 6M DX Summary for FUTURE reference






K1SIX- Jan & Feb 2014 WG2XPN/B 70.005 MHz Radio Meteor Counting Test Results


Live WG2XPN/B Meteor Counts from this site are sent here (See K1SIX Plots)




K1SIX- Jan 2014 Atlanta 67.250 MHz Radio Meteor Counting Test Results


Estimated impact of noise degradation on Sporadic Meteor Counts





W7GJ TRACKER MAY BE USED FOR SOLAR ELEVATION



Compilation of papers and reference materials from Jim Kennedy, PhD K6MIO


Mid-Latitude Sporadic-E- A Review, Michael Hawk, Nov. 2001


Thanks & enjoy,
Bob