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| To: | [email protected] |
|---|---|
| Subject: | Re: VLF: 3 and 1.3 kHz at VE7TIL |
| From: | Scott Tilley <[email protected]> |
| Date: | Mon, 11 Jul 2011 11:08:42 -0700 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
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Hi Stefan What you are seeing is natural. See this paper: http://www.vlf.it/naturalnoisefloor/naturalnoisefloor.htm 73 Scott VE7TIL On 7/11/2011 7:02 AM, Stefan Schäfer wrote: Hi Scott, VLF,Scott, i just took a look on your VLF grabber and saw the sferics are interestingly (clear!) attenuated in the range of 1.3 and 3 Khz. There is a sharp limit where the sferics are not visible. Is there a man made reason or is it due to a natural effect? Most people have strong QRM/hum on that QRG...73, Stefan/DK7FC |
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