i1JTQ "Sporadic E" Page
Patchy ionization of the E region of the ionosphere can propagates on all Very High Frequency signals between 800 to 2500 km. This is most common in May, June, July and middle of August.
Usually the E sporadic opening,
starts early in the morning on low VHF (< 50MHz) and it is
possible to foresee the 2 meters band event, just
using a receiver for all VHF bands and looking the M.U.F.
I use a Panoramic Receiver (30-300MHz) with 2 differents
front-end, the first one (30 to 60 MHz) connected to a TV channel A two elements yagi antenna, the other one (60 to 300
MHz) connected to an
Aircraft-band G.P. antenna.
Now, we can have a very good help using the G7RAU "Live Muf Software", thank you Dave!
QSOs during E Sporadic opening are
very easy (pile-up permitting); I worked many stations over 1.000 km with only 3 Watt into a 2 elements HB9CV antenna.
This is the list of my 144 MHz Sporadic E opening, worked from my home QTH (Turin city) since 1979:
YEAR MM DD U.T.C. END COUNTRY N. OF QSOs
1979 06 28 14.25 14.43 9H1 2 1981 06 09 16.16 16.25 9H1 5 1981 06 10 15.09 15.37 SV-LZ 4 1981 08 11 18.04 18.15 CT1 1 1982 06 05 18.28 19.-- G-GW-F 1 1983 06 10 16.54 16.5- EA1 1 1983 06 12 12.40 12.50 YU1-YO 2 1983 06 15 15.15 16.20 SV-4X4 2 1983 06 20 17.22 17.40 9H1-IT9 9 1983 07 15 16.29 17.31 SV-I7-YU5 17 1984 06 08 17.45 20.35 SM-OH-UQ2 34 1984 06 19 18.01 18.08 SV 2 1984 07 08 16.28 16.30 SV 1 1985 06 02 15.10 17.00 SV-4X4 3 1985 06 04 17.24 17.30 LZ 2 1986 06 06 17.01 17.24 SV-4X4 5 1987 06 04 16.09 16.18 SV 0 1987 06 07 09.25 11.40 LZ-SV 11 1987 06 07 16.42 17.12 UB5 7 1988 05 24 16.34 16.37 YO 2 1988 06 04 16.30 16.35 EI5 0 1988 06 07 16.28 18.21 UB5-YO3-LZ2 16 1989 06 05 17.42 19.01 UT5-UT4-RB5-YO3 6 1989 06 10 18.15 18.45 LZ2-UT5 2 1989 06 12 17.26 18.53 RB5-SV1-RA3 5 1990 06 01 18.15 18.45 RB5-RA3 1 1990 06 18 18.21 18.23 GI 1 1990 07 05 17.50 18.10 EA7 1 1991 06 10 16.34 16.50 9H-IT9 4 1991 06 16 07.30 09.30 UB5 0 1991 06 17 21.54 22.05 YO3 1 1992 06 03 15.45 17.10 LZ-SV 10 1992 06 04 17.10 17.30 IT9-9H1 6 1992 06 06 11.34 11.50 UO5-YO 3 1992 06 07 10.25 11.30 GM-GI 13 1992 06 22 17.40 19.40 GM-LA-PA-9H1 17 1993 05 12 15.30 19.00 SV-4N-LZ 7 1993 06 10 15.50 21.10 G-GI-GW-OY9 31 1993 06 11 06.55 10.20 OZ-UB5 2 1993 06 13 10.10 10.35 SM 3 1993 06 17 17.45 17.50 ZB0 0 1993 06 20 07.50 07.55 HA 0 1993 06 22 17.20 17.25 IT9 1 1993 06 27 08.35 08.40 CN8 1 1993 07 08 16.50 16.55 SM5 1 1993 07 17 11.25 11.30 UB5 0 1994 05 16 16.10 16.35 SV-SV9 2 1994 05 18 18.10 18.20 G-EI 0 1994 05 21 12.08 12.35 EA7 0 1994 06 19 10.55 11.05 CT 2 1994 06 24 19.25 19.30 CT 1 1994 08 13 10.30 10.40 9H 0 1995 06 02 11.44 12.30 LZ-YU 13 1995 06 05 15.55 16.15 EA7 5 1995 06 06 11.20 11.25 EA9 1 1995 06 12 14.35 15.15 EI 8 1995 06 16 17.56 18.00 SV9 0 1995 06 19 10.30 11.00 9H1 0 1995 06 20 15.50 16.45 LZ-SV 13 1995 07 15 18.15 18.25 I7-SV 2 1995 07 20 15.30 15.35 CT1 1 1996 05 18 08.45 17.25 9H-EA9-YO-UT-SV9 18 1996 05 19 16.45 16.50 YO 1 1996 05 23 13.45 16.30 LZ-YO-UT-UX-RZ 29 1996 06 15 09.15 09.20 EA7 1 1996 07 06 15.45 15.50 SV 1 1997 05 23 15.08 16.00 YO-LZ-UB5 11 1997 06 04 07.00 07.45 YO 5 1997 06 05 06.50 08.10 UA-OH-SM 4 1997 06 18 13.45 13.50 G 1 1998 05 03 12.00 12.10 SV9 1 1998 06 11 17.45 19.30 EA7-CT1 3 1998 08 09 09.55 10.30 9H 0 1998 08 15 09.00 10.00 LY - RZ3 0 1999 05 24 13.00 15.00 F(in78)- G(io70) 2 1999 05 29 11,05 11,10 YO(kn34-44) 2 1999 05 30 17,45 18,45 EA7 - EA9 1 1999 05 31 13,30 14,30 LZ(kn43,12,22)- YO(kn34,44) 11 1999 06 20 10,30 16,30 LZ-YU1-YO-LY-ES-RA3 38 1999 06 22 14,55 15,55 LZ (kn23)- YO (kn35) 2 1999 06 23 10,40 11,10 SM4 (jp60) - OZ (jo57) 3 1999 06 24 17,30 18,00 Lybia (no ham) 0 1999 07 18 15,28 16,10 LZ - SV - SV5 - SV9 11 1999 08 04 17,44 17,47 GW 0 2000 05 27 17,20 18,15 LZ - 9H - IT9 - SV9 22 2000 05 28 15,10 16,10 SV - SV5 - ZA 15 2000 05 28 20,00 20,30 SM - SP - LY 3 2000 06 09 13,30 17,00 CN - CT - EA 2 2000 06 10 18,55 19,10 GM 2 2000 06 13 19,35 20,40 EI - GI - GW - G 5 2000 06 27 12,00 12,30 EA4 - CT1 3 2000 06 30 12,10 12,40 EI 2 2000 07 17 15,40 17,15 SV5 - SV9 - SV1 - 4X 5 2000 07 22 17,05 18,30 LY - EA9 2 2001 07 07 19,05 19,10 G - GW 1 2002 06 02 11,10 14,25 EA9 - EA 5 2002 06 08 18,40 19,05 SV - SV9 4 2002 06 10 17,55 18,00 YO 1 2003 05 25 18,25 18,45 SP - LY 4 2003 06 16 15,45 15,50 G - F 1 2003 06 28 16,30 16,35 SV9 1 2003 06 29 17,40 17,50 YO 2 2003 07 05 07,55 08,25 SV - LZ 6 2005 06 11 18,00 18,15 SM 2 2006 06 04 14,15 17,15 SV - YO 3 2006 06 05 14,20 15,15 LZ - YO 3 2006 06 09 16,55 17,00 F - EI 2 2006 06 11 16,10 18,20 CT - EA 6 2006 06 12 11,00 11,05 GM 1 2006 06 14 07,45 16,00 RA - UT - YO 8 2006 06 16 08,35 10,55 UA - TA - LZ 4 2006 06 18 10,00 12,00 GM - GI - G - EI 13 2006 07 07 10,34 14,40 G - GM - EA7(IM66) 13 2006 07 09 08,30 08,45 I7 (JN80) 1 2006 07 11 15,15 15,17 LZ 1 2006 07 12 12,30 21,10 TA LZ SV Z35 YO ZA1 EI GI GM UT 22 2006 07 16 15,05 15,30 9H CT 2 2007 05 27 08,45 18,30 CT EA1 SV9 SV 4 2007 05 28 16,00 16,10 EA1 1 2007 05 29 15,45 15,55 LZ 3 2007 06 02 14,25 18,55 LZ CT YO EW LY 11 2007 06 06 15,10 17,00 9H CT EA7 6 2007 06 13 17,00 18,00 CT CN 0 2007 06 14 06,50 07,20 YO UT 3 2007 06 19 14,30 15,15 YO LZ ER 14 2007 06 25 17,25 18,00 G GW EI 2 2007 06 26 15,40 16,10 TA 1 2007 07 01 14,05 14,40 TA LZ 4 2007 07 14 17,30 18,15 OZ 1 2008 05 27 14,15 15,50 SV TA LZ 6 2008 05 28 09,12 09,20 TA (KM38) 1 2008 06 22 08,25 08,35 LZ 4 2008 06 28 08,59 09,01 I8 IT9 1 2008 07 02 08,46 09,50 F (IN78) 2 2008 07 10 19,32 20,10 EA1 2 2008 07 17 15,55 16,00 CT 1 2009 06 15 17,00 17,30 TA LZ YO 6 2009 06 17 14,30 15,40 SV SV9 3 2009 06 29 17,55 18,05 LZ 1
total QSO = 670
Audio WAVE file:
EA9IB
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