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oz7igy  

On 30 March 2017 the OZ7IGY beacons turn 60 years old.

The 60th anniversary is being marked by running the NAC-contests of March from the OZ7IGY QTH: Slettebjerg, JO55WM, with the call sign OZ7IGY. Would you like to be one of our operators? Or to join us at our open house party? Click here to read much more.


OZ7IGY dates back to the International Geophysical Year in 1957. Initially active on 144 MHz but later followed by more bands so that OZ7IGY now transmits from 28 MHz to 24 GHz including 40 MHz and 70 MHz.  All the beacons use the Next Generation Beacons platform.

Frequency [MHz] USB dial*
ERP [W] ASL [m] 99% accuracy [mHz] Year QRV
28,271 28.270.200 10 95 1 2009
40,071 40.070.200 10 97 1 2007
50,471 50.470.200 25 98 1 1990
70,021 70.020.200 25 100 1 2003
144,471 144.470.200 50 102 3 1957
432,471 432.470.200 75 103 9 1958
1 296,930 1.296.929.200 90 95 26 1978
2 320,930 2.320.929.200 30 98 46 1985
3 400,930 3.400.929.200 50 96 68 2006
5 760,930 5.760.929.200 50 98 115 1992
10 368,930 10.368.929.200 100 97 237 1999
24 048,930 24.048.929.200 20 97 481 2012
Notes: Active beacon Out of service Upcoming maintenance, see event log  *: On most radios

All the beacons transmit in a 60 s mixed mode sequence (PI4 + CW + carrier) and are GPS locked. This ensures that the transmitted frequencies 99% of the time are better than the values listed above.

On 30 October 2012 the first two Next Generation Beacons were put on air. The Next Generation Beacons platform is open to others and the software can easily be adapted to other modulations and sequences. Emanuele, IW9GDC and beacon manager of IW9GDC/B that also uses the Next Generation Beacons platform says: “… I can really say that this hardware is actually the best ever made … 4 km straight line and cannot detect any issue with the signal.”

PI4 decoded and DX cluster spots

Next Generation Beacons – PI4