To: | [email protected] |
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Subject: | Re: LF: Re: Re: 8270Hz - on air |
From: | Paul Nicholson <[email protected]> |
Date: | Sun, 03 May 2015 06:16:31 +0000 |
In-reply-to: | <39057AB697834433BAF97C1532272E0E@White> |
References: | <39057AB697834433BAF97C1532272E0E@White> |
Reply-to: | [email protected] |
Sender: | [email protected] |
User-agent: | Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 |
Markus wrote: > somewhat patchy on Paul's steerable VLF-spectrogram. Yes, there is something wrong with the phase. The problem is at my end - looks like a software change to the receive timing about a week ago has produced a problem. There is, intermittently, a lot of spiky phase noise. It is a delicate compromise between responding quickly to A/D clock drift and maintaining a low phase noise. Today I will fix it, if necessary I'll revert to an earlier version. Your signal is somewhere between 0.05 and 0.10 fT and that should have produced a quite solid trace on the spectrogram. -- Paul Nicholson -- |
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