| K0KOC.com | |
| 网站标题： | * |
| 网站简介： | K0KOC FM19ig Beacon Reception |
| 关键字： | beacon FM19hj IARU DX radio amateur radio k0koc NCDXF scientific propagation sun spot sunspot solar flux beacon monitoring Sergej Zyrianov |
| gmdx.org.uk | |
| 网站标题： | gmdx.org.uk |
| 网站简介： | gmdx.org.uk |
| 关键字： | gmdx.org.uk |
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