Region 1 reports that the Over The Horizon (OTH) Radar from Iran is
daily transmitting on our 10 m-band, often long lasting on 28245 kHz
can hear a high and a low tone, corresponding to the sweep rates of 870
and 307 sweeps/sec. The system is about 60 kHz wide, the splatters are
covering +/- 250 kHz.
The Austrian, Dutch, Swiss and German PTTs have been informed.
More information - http://www.iarums-r1.org/iarums/latest.pdf