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| To: | [email protected] |
|---|---|
| Subject: | Re: LF: Re: 500kHz attenuation graphs? |
| From: | Ian Marsh <[email protected]> |
| Date: | Wed, 04 Nov 2009 22:05:17 +0000 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]>, <002b01ca5c10$0ccec4f0$0201a8c0@Clemens04> <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| User-agent: | Thunderbird 2.0.0.23 (Windows/20090812) |
Wonder if this would help. It's a free BBC document on the estimation of LF/MF broadcast service areas. There are graphs for the 200 KHz to 1500 KHz region for differing ground conductivities. It's available at: http://downloads.bbc.co.uk/rd/pubs/reports/1975-01.pdfOlder editions of the NAB Engineering Handbook at least had graphs for the MW broadcast band if I remember correctly but someone seems to have lifted our work copy and the latest edition is priced at $199. Cheers Ian / G4EXD |
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