njc
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1N4148 diodes in parallel facing opposite directions across the input. The term "back-to-back" has always been a pet peeve since it incorrectly describes what we are trying to do. You want to limit the voltage to Vf in both directions. Y…
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Probably just a typo - but the correct port is 8073.
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All valid concerns for sure. I also have constant attacks on my firewall, but I'm running mail and other services so I'm more of a target. For months I've had continuous attacks from bot nets. Same vectors, different IP each time. Bastards. Anyw…
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What could be the purpose of using multiple channels to monitor CHU on a 1-2+ second delay?
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Ben, Since it seems like the problem is under the FPGA, I would try a reflow operation. No guarantees it would work but not much to lose either. If you have access to a heat gun capable of 500°F or so you could try it. Use kapton tape over the part…
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I agree, those caps are not needed. The choke probably be could be omitted (shorted across) too...
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I had assumed that 5VE (5VEXT) would be tied somewhere to 5V but apparently not. So my best guess is 5VE feeds power from the kiwi barrel connector to the BBG, then the BBG would provide the other power rails (including 5V) to the kiwi. When you d…
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Thanks, guys. It's likely I used too much flux, but it seemed necessary. Maybe I should hold the board vertical, heat the chip (not to solder melt temps but enough to liquify the flux) , and apply IPA to the top and let it flow down and wash out. Te…
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Does your power supply have sense lines? You might consider a supply that has them for your application. It will compensate for V drop in the cables. It will also prevent an overvoltage condition which could happen if you cranked it up and then h…
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This is likely not your issue, but something that came up recently for me was Cisco's "port security" which rather inconveniently will shut down a port when MAC addresses are detected that it doesn't expect. In my case, we brought some ne…
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I used the really small and thin solder wick and an iron, being careful not to rip anything up or scrape any solder mask. It took patience. I used a microscope to inspect and went over any pads that I wasn't satisfied with. Then I cleaned them wi…
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So the kiwi has been working great...until Sunday! After some debug, I found that the 1.0V rail was shorted to ground. I eliminated components by removing the diode, and then the inductor on the power supply. Using a FLIR device and running some …
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The noise blankers seem to work well for me also. Other options are to seek out and repair any "bad" connections on those fences...or use wire cutters😁
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It's not just Windows 10 as I seem to have the problem on Windows Server 2012R2, Ubuntu, and even Android. It seems to be Chrome/Chromium related. Brave has the problem, Midori and Firefox seem fine. As always, YMMV.
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Confirmed, the latest Chrome Canary does NOT have the popping problem!
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John, Thanks for your continued efforts. I still have the popping on v1.446. I noticed something interesting that might be a clue. If I change the sample rate via windows control panel (mmsys.cpl) I can change the frequency of the pops. At 192k t…
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I made a new discovery. The popping stops when I select "null LSB" or "null USB" on SAM.
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See this thread: http://forum.kiwisdr.com/index.php?p=/discussion/2251/v1-440-c-quam-channel-queueing-camping
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Confirmed, Midori (portable) seems fine.
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I think it might be a Chrome/Chromium issue, perhaps OS dependent. I installed Firefox on Win2012 Server R2 and it does not have the pops. Also on my Android phone Chrome has the pops, Firefox doesn't. So it seems for now the work around is to use …
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Oh and I can confirm that it is NOT present on the recordings.
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OK I just played with it for quite a while. SAM/SAS/SAL/SAU/QAM/CW and IQ modes all pop. In fact it's most obvious in CW (with the carrier in the passband). I don't hear it in the AM or SSB modes. It happens on strong and weak AM signals. It does …
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I just tried this. The popping does not stop in IQ, even after waiting a while. It stops when in regular AM mode. I've found the pops happen on Windows 10 and my Android Pixel2 (Chrome). One thing to note: My popping is not as regular as Stu's…
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Yeah, it is a pain. I also found that in order for the wifi to connect, eth0 (wired) needed to be disconnected so keep that in mind. I wasted several hours (days?) on that...
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Understood. My comment was mainly "tongue-in-cheek" anyway. Thanks for everything you've done and continue to do with this project.
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Yes, the "camping" feature is great! A thought: It seems that when the primary user disconnects the "campers" are cut off. Would it be possible for one of them (the first one?) to take over so as to avoid the interruption? I kn…
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If the resistance on the barrel connector (kiwi board by itself) looks good, try to apply power (5V, 2A or more) and check the voltage rails. You can also check if anything is getting hot. See this thread/comment: http://forum.kiwisdr.com/index.php…
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I did a little sleuthing. This kiwi from Edinburgh, IN receives WZZB from Seymour, IN quite well. WZZB is on the C-QUAM list and is a music station. Here's the online stream for verification: https://wzzb1390.com/stream-wzzb Nick W1NJC
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Slightly off topic here but related nonetheless. Verizon FIOS recently changed their routers to not report TTL data on ICMP traffic (at least that is what I think). This causes tracert in windows to return data like this: C:\Users\njc>tracert f…
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OK so it's not a DNS issue. The output from tracert 50.116.2.70 will be useful.