Monitoring System (IARUMS)

OTH Radar from Iran on 10 m

The Over The Horizon (OTH) Radar from Iran is daily transmitting on our 10 m-band, often long lasting on 28245 kHz. You can hear a high and a low tone, corresponding to the sweeprates 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. For more information click here!