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| To: | "[email protected]" <[email protected]>, [email protected] |
|---|---|
| Subject: | LF: WSPR15 - sort of success |
| From: | Roger Lapthorn <[email protected]> |
| Date: | Sun, 3 Feb 2013 19:23:35 +0000 |
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After several attempts Tom G8HUH managed to decode my WSPR15 transmission on 137.607kHz this evening. As the FT817 was drifting around 4Hz in the 15 minute TX slot with the FT817 on 1837.607kHz (I was using a stabilised sig gen for the LO at 1.7MHz), I think this was messing up the decodes as Tom only gave me -32 and -34dB S/N whereas I have been getting some 6dB BETTER than this with the WSPR2 transmissions. If WSPR15 is going to succeed for me I need a more stable rig (or a 0.5ppm TXCO fitted to the FT817) or a fan to force cool the FT817 - even when running 500mW!Thank you Tom G8HUH, and Trevor G0KTN, for working with me for the last couple of hours to get this as good as I could. |
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