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A question for net 27/09/2023 .
2023-09-26 23:37 |
Moderator Registered: 2 years ago Posts: 94 |
| A question for the net on 27/09/2023 as operator Do you know what SSN and SFI mean and what effect(s) they have on HF propagation ? comments off join us on the net de M7SBC.. | |
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