Unknown Intruder in 21 MHz Band

IARU Monitoring System (IARUMS) Region 1 reports in June they received a new unknown signal in the 15m band. It was on 21003.5 kHz for several days with long-lasting transmissions, and also received several times around 21122 kHz

Although it is probably a radar transmission, as we cannot officially confirm it, we report it as an unknown signal, XXX. TDoA radio locations taken seem to show the area of Iran for this signal.

The International Amateur Radio Union Monitoring System (IARUMS) Region 1 June 2022 newsletter can be read - https://www.iaru-r1.org/wp-content/uploads/2022/07/IARUMS-R1-Newsletter-2022-06.pdf