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oz7igyqsl-1957

OZ7IGY dates back to the International Geophysical Year in 1957. From its start on 144 MHz it has been on air on more and more bands. Today OZ7IGY transmits on 28 MHz, 40 MHz, 50 MHz, 70 MHz, 144 MHz, 432 MHz, 1,3 GHz, 2,3 GHz, 3,4 GHz, 5,7 GHz, 10 GHz and 24 GHz. In the past most of the equipment was modified land mobile equipment. For the microwave bands most of the technology was dedicated radio amateur beacon designs and power amplifiers surplus. Today all the  OZ7IGY beacons use the Next Generation Beacons platform.

Frequency [MHz] USB dial*
ERP [W] ASL [m] Accuracy [mHz] Year QRV
28,271 28.270.200 10 98 <1 2009
40,071 40.070.200 10 94 <1 2007
50,471 50.470.200 40 100 <1 1990
70,021 70.020.200 40 102 <1 2003
144,471 144.470.200 40 104 1 1957
432,471 432.470.200 10 105 4 1958
1 296,930 1.296.929.200 20 96 13 1978
2 320,930 2.320.929.200 15 100 23 1985
3 400,930 3.400.929.200 25 97 34 2006
5 760,930 5.760.929.200 70 99 57 1992
10 368,930 10.368.929.200 1000 96 104 1999
24 048,930 24.048.929.200 4 98 241 2012
Notes: Active beacon Out of service Upcoming maintenance, see event log  *: On most radios

The beacons transmit in a 60 s mixed mode sequence (PI4 + CW + carrier) and are GPS locked ensuring a transmitted frequency accuracy as 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