| Hamcall.net | |
| 网站标题： | HamCall.net Amateur Radio Products and Services |
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| dxatlas.com | |
| 网站标题： | DX Atlas: Amateur Radio software |
| 网站简介： | High resolution World Map software for Amateur Radio. Geographic and Azimuthal projection, Ham prefix and QTH lookup, CQ and ITU Zones. |
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| contesting.com | |
| 网站标题： | contesting.com |
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| qrz.com | |
| 网站标题： | Callsign Database by QRZ Ham Radio |
| 网站简介： | Worlds leading amateur radio web site with news, technical articles, discussions, practice exams and more. |
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