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| To: | [email protected] |
|---|---|
| Subject: | Re: LF: VLF Tinkering |
| From: | Paul Nicholson <[email protected]> |
| Date: | Mon, 09 Nov 2015 18:06:04 +0000 |
| In-reply-to: | <[email protected]> |
| References: | <CAA8k23Qtq4Wm2Z-qzx=9o=n909ZekEkWwT3UCXDxw0_ysGSnUA@mail.gmail.com> <[email protected]> <CAA8k23QzeGo_Pb+sq+-T_CDANfzG0881ViO88QW9az_gHOrK7w@mail.gmail.com> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
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Joe VO1NA wrote: > A GPS unit is now on hand. It provides NMEA strings but > I'm not sure about the pps. PPS essential if you're using Spectrum Lab or vlfrx-tools. The GPS that I use these days is this one http://uk.mouser.com/ProductDetail/mikroElektronika/MIKROE-362/?qs=sGAEpiMZZMuNcqZxhMNT368vTF1vBnGt http://www.mikroe.com/eng/products/view/122/smartgps-board/ After some arithmetic and comparison with other signals, I reckon that if you can muster 40uW, it will be possible to decode messages at 8277 Hz here the UK, and 20uW would be enough for a carrier detection. That assumes a suitably precise oscillator. -- Paul Nicholson -- |
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