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| To: | <[email protected]> |
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| Subject: | LF: Re: Opera v qrs evaluation |
| From: | "James Moritz" <[email protected]> |
| Date: | Tue, 31 Jan 2012 18:35:55 -0000 |
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Dear Eddie, LF Group,In an attempt to actually make a comparison, I have set my RX to the 500kHz WSPR frequency, with Spec Lab going also. Since it has been running, G3ZJO's QRSS3 has been about 10 - 15dB SNR in 0.3Hz FFT resolution, so say about 6dB above the level needed for "good copy". Opera has so far reported SNR between -23 and -27dB - I don't know how this relates to the detection threshold for the Op4 mode. I'll leave it going for a while... Cheers, Jim Moritz73 de M0BMU |
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