OZ7IGY, Radio beacon station in Jystrup, Denmark
OZ7IGY is a radio beacon station near Jystrup that transmits on several amateur radio bands. The station broadcasts on different frequencies in the 10-meter, 2-meter, and 6-centimeter ranges to provide signals for radio experimenters.
The station started operations in 1957 during the International Geophysical Year. It has operated continuously since then, making it one of the longest-running radio beacons in VHF and UHF bands globally.
The station maintains connections with international radio communities through specialized digital modulation systems, contributing to global amateur radio advancement.
The station transmits in one-minute cycles using various modulation types, including digital modes and continuous carriers. These regular signals let radio amateurs monitor propagation conditions and test their receivers.
Frequency stability is maintained better than 5 ppm through GPS synchronization, enabling precise measurements for radio propagation studies. This high accuracy makes it a valuable tool for radio amateur experiments worldwide.
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