Links - Locals

  • ex J3CK, JP1JCK
    The original owner of the TS-850S in my shack. SK, Nov. 30, 2015. RIP.

    1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30      

« CQ NA / CQ North America | トップページ | Missing QSL’s Found QSLカード行方不明事件 »

2013年10月 2日 (水)

RBN / Reverse Beacon Network リバース・ビーコン

Last Monday (local time) was an eventful day for my radio operation, as I saw my call signs in the RBN, Reverse Beacon Network page. I had been aware of the site from a couple of articles in the recent issues of the Japanese “CQ” magazine and a comment in JF1SGH’s blog, but I had thought that weak signals such as mine would not be caught by the skimmers in the network. Therefore, I had seen the site a few times to know what it was like, but had not opened the site when I called CQ’s. It came to my mind that recent increase of the number of lookups of my “” page might be explained by the RBN, and I transmitted on the 15 meter band while I was watching the page for the band.
I was surprised to see my call appear immediately after I started sending CQ’s. The skimmers who caught my signals during morning hours of local Monday were KH6LC, VE6AO, K3MM and WA7LNW.


I tried the system during the evening hours of the same day; the dx skimmers who reported my signals were OH6BG and 5B4AGN.


I was able to know that my signals reached dx locations even though there was no caller. However, I cannot be too optimistic as we do not know how big skimmers are using.  The Google photo of the antenna of K3MM in Maryland, U.S.A is shown below. I am sure average stations are not equipped with such an antenna.



コールが無くても電波は届いていることが分かります。当局の強さの信号でも、例えば、8J1SEA/1 とか、WPXハンターには珍となる 7N1xxx/0 とかの相手が興味を持つコールなら、もっと呼ばれるのかも知れません。ただし、IBPのビーコンがアンテナと送信電力に規格があるのに対し、こちらの方は、受信局の設備がまちまちなので、信号がピックアップされたからといって、必ずしも楽観はできません。上のK3MMのアンテナらしき写真が参考になるかと思います。

« CQ NA / CQ North America | トップページ | Missing QSL’s Found QSLカード行方不明事件 »



こんにちは.早く帰ってきたら(2013/10/17 17:00),
DX de JE1SGH-#: 7011.0 JA1JCF/3 20 dB 21 WPM CQ 0806Z
せっかくJCFさんの信号がよく来ているのに,台風のために7MHzのアンテナをたたんだままなのでお呼びできません^^; またの機会によろしくお願いします.




この記事へのトラックバック一覧です: RBN / Reverse Beacon Network リバース・ビーコン:

« CQ NA / CQ North America | トップページ | Missing QSL’s Found QSLカード行方不明事件 »