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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | acclivity |
| 许可： | CC-BY-NC 非商业署名许可协议 |
| 描述： | Worldwide HF radio beacons. Recorded 21 Nov 1999 at 18:10 GMT in Sussex UK. The Morse code identities of the following stations can be heard (time into clip mins:secs): ZS6DN (South Africa, at 0:05) CS3B (Madeira, at 0:45) LU4AA (Argentina, at 0:55) OA4B (Peru, at 1:05) 4U1UN (New York City, at 1:25) W6WX (California, at 1:45). These stations transmit in a 3minute cycle. Each transmission gives the Morse identity, then 4 short carriers transmitted at 100W, 10W, 1W, and 0.1W. They are used to measure worldwide HF radio conditions. This recording was made, I think, on 21.150 MHz. For more info on HF beacons see http://www.ncdxf.org/Beacon/BeaconSchedule.html |
| 标签： | noise static morse anorak radio worldwide beacons |
| 音频格式 | mp3 |
| 声音时长 | 01:59 |
| 文件大小 | 939 KB |
| 比特率 | 689 kbps |
| 声道 | 立体声 |