HFU HF Underground
Loggings => Shortwave Broadcast => Topic started by: TRI International on May 18, 2026, 1130 UTC
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1127 UTC Yl & Om speaking in Chinese.
Frequencies reserved for IRDR
Season B25:
Band MHz Worldwide IRDR Frequency (kHz)* Times Already Coordinated (UTC)** Status 18 May 2026
6 5910 ±5 00:00 - 24:00 ✓ completed
7 7400 ±5 00:00 - 24:00 ✓ completed
9 9430 ±5 00:00 - 24:00 ✓ completed
11 11840 ±5 00:00 - 24:00 ✓ completed
13 13620 ±5 00:00 - 24:00 ✓ completed
15 15650 ±5 00:00 - 24:00 ✓ completed
17 17500 ±5 00:00 - 24:00 ✓ completed
19 18950 ±5 00:00 - 24:00 ✓ completed
21 21840 ±5 00:00 - 24:00 ✓ completed
25 26010 ±5 00:00 - 24:00 ✓ completed
SINPO 5/4/4/4/4 via University of Twente Netherlands SDR.