njc
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FWIW, this is the Google translate of the first image in the OP: https://forum.kiwisdr.com/uploads/340/QNVSDGEUTUP9.jpg
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You've clearly done your homework! You've got me thinking about possibly modifying mine (or making a new one). I'm not using mine on the kiwi though, I'm using it as an RX2 on my HF rig. So it kind of does double duty depending on what I need: L…
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Wow, Martin. Thanks for all of the great insights and advice!
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If cost is the concern, I've had good results with this loop amplifier: https://casarain.com/products/lamb-1b-hf-receiving-loop-amplifier It's only $20 but of course you still need an enclosure for it to keep it dry. For the loop itself, I used 1…
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Thanks for the input and suggestions, guys. My box is metal and it is completely sealed. I expected some issues with this configuration in the summertime but haven't really experienced that. Stu, great minds think alike! Over the weekend when I …
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Greetings, Stu! I'll answer/comment on your questions in the order you presented them: It's located in my shed and it's pretty close to the AP, maybe 100ft, and the AP reports full strength when it's connected. I do not know whether it's booted and …
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@ok1vaw Sorry for the late reply. Yes, mine is running that added CSS: http://kiwisdr.njctech.com
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If it's your kiwiSDR, try adding this at the bottom of the "Webpage" tab in the admin portal: <script type="text/javascript"> ext_set_controls_width_height = function(e, t) { if (e > window.innerWidth) { e = window…
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Also, he's right about static charge buildup. In my case, the beverage antenna is transformer coupled so there is no DC but other antennas can and will have static charges from rain/snow/passing storms/wind/alien spacecraft/etc.
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@jks out of curiosity, what is the part number of the TVS used? It looks like the absolute max input limits on the LTC6401-20 ADC is specified as a max current of 10mA. If I'm reading the datasheet right the lowest input Z is 170 ohms. At 3.3V …
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Indeed they do, but those problems do not result in blown hardware. I think if we are going to be TX-ing in proximity to our kiwisdrs, we have to accept that during tx there will be distortion/overload/mixing products and that the kiwi will probabl…
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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.