ka7oei
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When I seem something like that on a waterfall the first words in my mind are "failing switching supply". Having said that, I've run across some OEM Chinese switching wall warts that were devoid of any semblance of RF filtering that radia…
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I noticed that the two KiwiSDRs that did successfully upgrade from '137 to '138 (kiwisdr1.utahsdr.org:8073 and its #2 counterpart) were not able to automatically upgrade from '138 to 139 - and one of these (#1) seemed to unable to restart the SDR af…
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Thanks for that, Rob: I somehow missed that the WDT didn't start with everything else, but reading between the lines I can see that to be so and it started with the "-w a" arguments - and it kinda says as much in the help. The "00:0…
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In using kiwiwspr, I've noticed that the scheduling doesn't seem to work: It seems only to do the "daytime" schedule (below) 24/7. I'm wondering if I've missed a permission somewhere? (The scripts were installed under a user, not root.)…
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I got this "lock file" error on one of three Kiwis that I operate. Interestingly, in the state of "unable to upgrade" the WSPR decoders would not auto-start. Deletion of the lock file and issuing another "up" brought …
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Hi Rob, Thanks for elaborating on that (and, of course, thank you very much for your scripts!). A couple years ago I investigated this same thing and determined that what would seem to be a useful feature in the wspr software was lacking. I, too,…
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Resisting starting a new thread, I'll ask here if wsprd+kiwiwspr, like the WSPR decoder in the Kiwi, has the ability to effectively quash duplicate decodes? I ask this having just switched the KiwiSDRs at the Northern Utah WebSDR site from the buil…
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In messing about with it, I've noticed that the new algorithm seems to be very fussy and I've found it very difficult to get it to work at all: A set of samples (such as 5 MHz WWV, AMN) that gives good results (<25km error with multiple tries/ne…
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Hi, The graph is nice and seems to be helpful - thanks! * * * There *is* something odd that occurs that is most apparent when using narrow filters to copy CW signals. (I don't think that it has much to do with the CW extension.) As with many od…
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Several years ago, I was one of the main people behind the code on the mcHF SDR transceiver and I ran across a "problem" with the Goertzel that I'd encountered when I'd used it before: Trying to make sense out of the detection value it pr…
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A clarification: What I got from sdr.hu was an error about "ip.address.a != ip.address.b" where IP addresses "a" was what "kiwisdr1.utahsdr.org" resolved to and "b" was the odd address that the Kiwi itself wa…
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Hello John, Because the IP address is "fixed" in that situation, I suppose that one could override what the Kiwi saw as the "external" IP address and put it in manually - but this is probably an edge case and is unlikely to be c…
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Being the main "RF" person for the Northern Utah WebSDR, we had a significant AM BCB issue at our site with four 50kW stations (most of them daytime) within about 100kM or so, resulting in some of their signals being in the -20 dBm area on…