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| To: | [email protected] |
|---|---|
| Subject: | Re: LF: LF EbNaut test from JN80 on 137370 |
| From: | Wolfgang Büscher <[email protected]> |
| Date: | Thu, 10 Dec 2015 18:35:10 +0100 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> <CAA8k23RQGU=hgYNB0fQOh-HnU9B-ZCW6_Oki0RcWKBHDxksV7w@mail.gmail.com> <[email protected]> <CAA8k23TqCUokxj9GoN0oPq9rbJWsS2w+-e8e0gCTReNNwzBmGg@mail.gmail.com> <[email protected]> |
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Hmm... the old problem with "I leading Q" or "Q leading I" if the signal
frequency in the complex stream is positive.
When loading Andy's file in a curve editor, I see the 2nd channel leads the 1st by 90 degrees. "positive or negative frequency" per definition ? Cheers, Wolf . Am 10.12.2015 um 13:00 schrieb Paul Nicholson: Andy wrote: > I'll check my generated .WAV files via the waterfall plot > in Spec Lab to make sure the I/Q is the right way > round. Yes, here I will check vlfrx-tools, I think it's the right polarity but maybe not? I notice when I rx I/Q from an RTL2832 SDR I have to invert Q to get the sidebands the right way round which is suspicious. -- Paul Nicholson -- |
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