n6gn
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Sorry for the delayed response. Here is a screen capture of the 'offending' KiwiSDR. Note that this same symptom, a ~5 dB peak in the noise floor in the region near 17 MHz has followed 2 BeagleBones Greens and one Beagle Bones Black attached to th…
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I need to update my previous posting. I finally received and installed a new BBG. It does seem to come up properly and my network access problem has, at least for the moment, gone away. BUT I also notice an undesirable 'hump' in the spectrum at ab…
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A big capacitor only slows down transitions. But the whole thing operates in the context of the Beagle's brown-out/reset environment, as I understand it. As power comes up, at some point that algorithm decides to try to make it all run. What we d…
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It appears that something >30 MHz is killing you. Try 10-20 dB attenuation at the antenna connector and see if it changes. Glenn n6gn
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I wonder if a monster capacitor on the 5VDC line would cure the problem. You have a 10,000 uF or more at 5V that you could stick across to see? That should keep it up for a few milliseconds. Glenn n6gn
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I had a very similar problem. A 'stock' KiwiSDR had it's networking quit after several months. I did my best to access it to see what was going on. Specifically I tried the USB/console interface that is supposed to exist. It didn't work, the USB d…
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My initial look only a few minutes after loading v 1.242 here is that both the ~24 Hz spurious we reported as well as the SNR degradation we saw and wrote about in the above PDF are substantially or completely gone. It will take a more data gather…
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Well, I did look at WWVB but unless you had commented, I probably wouldn't have stuck around to notice the issue. I see the expected 180 degree flips but there *does* also seem to be a very slow residual rotation. I estimate that it is on the order…
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Yes! That fixed it. It's holding still with just a couple of degrees of jitter which may be either phase noise or simply SNR on the signal. I'm only 13 miles from WWV but there is actually quite a lot of absorption by this frequency ( see my QEX ar…
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I appreciate the addition of the TDoA extension but I see a potential issue; it can tie up a lot of receivers for a lot of the time. My log shows a good deal of activity which while I don't mind it, I would rather like to limit how much of my kiwi(s…
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Now it is no longer doing it for me. I've only seen it when the new session is local. When I access remote kiwis there's no problem. Now local sessions are working OK. I can't explain it, I'm not aware of any changes. If it shows up again I'll t…
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I agree that a distribution amplifier is attractive. It doesn't require the extra kiwi connector and potentially all kiwis always powered on that daisy chaining would and it also keeps kiwis more independent so that clock pollution is less of a pro…
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Not sure yet that it is a password timeout problem. Things go away after a few minutes. Maybe inactivity or a crash. Cause still TBD.Glenn n6gn
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I really like the changes. It allows my completely standalone kiwi (once I add batteries) to power up spotting WSPR into the database if I have a WiFi connection. This is of great interest to me because I can then use a balloon or quadcopter to sup…