The TOPBAND


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DXCC: 236 worked, 219 confirmed

WAZ: All 40 worked, 37 confirmed

WAS: 41 worked, 38 confirmed



Listening, listening and more listening... that's low band DXing.

Topband = 1.8 MHz radio band, wavelength about 160 meters, only radioamateur band on the medium frequency, MF- range. In Finland band limits are: 1810-1855, 1861-1906 and 1912-2000 kHz.

My very first official Topband QSO was in 26. March 1994 with YU1BW, after I got my general class licence. Since then I have been thrilled about this band. First DX in my log is UA9XMC in year 1996. Biggest boost was vertical project that is continuing process with maintenance and fine tuning. I was QRT several times while working abroad during 1995-2001 and without HF-rig from 2002-2004. I also live 400 km from station for 18 months around 2007. During summer of '04 and winter '05 I built a new rig, Elecraft K2/100. I am active during contests and mainly weekends. Sometimes when get really bitten by Topband decease I go to station also during week. From downtown apartment 160 meters operating won't be possible. My #160 worked DXCC at 160 meters was Greg, ZL3IX, on the 1st of May 2006. My #160 confirmed Topband DXCC country was Mellish Reef VK9GMW in autumn 2009. My #200 worked DXCC at 160 meters was Remi, FK8CP, in Christmas eve 2009. My last zone #6 was worked in 30th of December 2009, 4A1DXXE was the station.

I received
161st, 162nd and 163rd QSLs in 2. November 2009 for Grenada J3/DL7CM, Martinique FM5CD and Senegal 6W1RW.
164th QSL 3. November 2009 for Andorra from C31CT.
165th QSL 6. November 2009 for Guinea from 3X5A.
166th and 167th QSLs 9. November 2009 for Liberia from EL2DX and for Kerguelen from FT5XO.
168th QSL in 13. November 2009 for Chile from CE1/K7CA.
169th QSL in 19. November 2009 for Argentina from LU5YF.
170th QSL in 7. December 2009 for Galapagos Islands from HC8N.
171st QSL in 8. January 2010 for San Andres & Providencia from 5K0T.
172nd QSL in 8. April 2010 for Chesterfield Islands from TX3A.

Started to use Logbook of The World in february 2012. Got several confirmations via that service.

201st QSL in 12. August 2012 for Ogasawara from JD1BMH.

I received
QSL in 27. September 2006 for Zone 3 from N7UA.
QSL in 19. November 2009 for Zone 13 from LU5YF.
QSL in 8. January 2010 for Zone 7 from 5K0T.


PROPAGATION

The Sun affects the radio propagation on all the bands. Northern latitude especially is affected by the auroral activity. My QTH is 62,28 degrees north and 27,15 degrees east.. Here is some links to different sites with solar and geomagnetic data.

FROM NOAA SPACE WEATHER PREDICTION CENTER

Space Weather Enthusiasts

Finnish Meterological Institute

Data from Nurmijärvi, Southern Finland.
Latest magnetogram
24 hours magnetogram from Hankasalmi, 40 km from my location
HAN 24h
Geomagnetic activity nowcast - test version
English

Reverse Beacon Network

I test reverse beacon network with SDR and CW Skimmer. Below is setup in apartment. Not very big signals with coaxial loop. On the 20th of December I put loop outside on balcony.

Test is over, last spot 0248 UTC 23. Dec. CW skimmer 30 day demo ended. This year's ham-budget is already over. Registered in January 2010.

We (read OH4KLU) changed laptop's OS to XP. Installed everything there and now it is working again. Now system in the station with beverage antennas. Sometimes online.

Worked DXCC progress year by year

Year

DXCC worked in year

DXCC worked end of year

QSO count in year

Notes

1994

17

17

21

First QSOs with dipole.

1995

2

18

4

Working in Malaysia most of '95.

1996

46

47

114

Put up inverted L antenna. Still in Malaysia for half year.

1997

32

64

43

Working in Thailand most of '97.

1998

92

102

1369

Still in Thailand. Built 1/4 vertical. Linear amplifier purchased early '98.

1999

16

105

27

Working in Henan, China most of '99.

2000

48

109

254

Still in Henan, China, end of year in Minas Gerais, Brasil.

2001

60

119

454

Few months in Minas Gerais, Brasil.

2002

23

126

110

Sold Icom IC-736.

2003

33

127

188

One bandpoint with loaned TS-430.

2004

35

128

206

Built Elecraft K2/100.

2005

96

148

1177

Upgraded vertical to five element parasitic array.

2006

88

165

584

Moved end of year to Turku southwest Finland, 400 km from station.

2007

77

168

982

CQ160, CQWW, Stew Perry

2008

86

181

393

Moved back close to station.

2009

107

201

1339

Quite active year on the topband with sunspot minimum.

2010

101

209

2224

Year with nice Pacific DX in log.

2011

81

217

1168

-

2012

88

222

1454

-

2013

86

226

1753

-

2014 75 232 584 Sunspot are high, but still some nice DX peditions on lowbands
2015 69 236 854 -

Updated :02-01-2016

© 2000-2015 Jukka Tarvainen