Powernumpty
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- Powernumpty
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I use a hard drive enclosure not the Kiwi case but figured I'd admit my probable errors.... Without any great schematic checking I grounded my Kiwi through the SMA threads on the assumption that while testing noise here without a metal case I had gr…
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Ah good to know, it's easy to forget those potential broadband RF amps in many locations.
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I know they lock up at about 6.7V running which is quite a bit higher than the specs would suggest. (and recovered) Please note: This overvoltage test was done by a certified idiot, please do not attempt to reproduce the results at home.
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That's valuable info right there. I wonder if the heatsink pad is marginal or is that too simple a failure mode? I always think of NVidia BGA re-ball kits on ebay and printers that will come back to life if you bake the control board, I had a coupl…
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I learnt something, I hadn't thought about v4 being visible (or not) so good question.
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https://serverfault.com/questions/755765/httpd-listening-in-ipv6-according-netstat-but-reacheable-in-ipv4
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Other nosey parker here.. That is not as bad as mine on a normal Mag loop, It sounds like switchmode but not as harsh as the gaming rigs... How close is the nearest PC? LED lights? With the spectrum on there are obvious repeating peaks like squarew…
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I'm no network guru but from head scratching experience MAC table entries can stay on routers and switches for quite a while, requiring reboots to get to a known point. The more intelligent the switch the greater chance of security getting in the wa…
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Glenn Would be nice to see a full spectrum (with actual spectrum not just waterfall) and a close in look at the signal. Some network kit here causes a rise around 18-21MHz but that is visible zoomed as signals at equal intervals.
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Ah that is a difficult one, power here is underground so although I've found some hot spots with a GQ EMF meter most radiated EMI is from homes (which are close together). I'd be temped to pick up an emf meter as it pays to have a feel for the level…
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Ron I've noticed the same thing and was considering having a cap at the Kiwi end fed via a diode from the 5V so it is at ~4.3V shortly after the 5V is up. Then have a double pole relay short the diode to the 5V power rail and connect that to the Kiw…
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Martin, just out of curiosity did you disconnect the antennas while swapping things about? I ask as my first Kiwi is still going but does not fire up the network in some circumstances, may take a few goes. All I have inboard of the Kiwi now is about…
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Mike, is your loop outside? That looks to me like a switch mode PSU but unless it is really close to the loop it would have to be a plastic cased charger/supply without any filtering often "replacement" laptop power supplies from Ebay/Amaz…
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I'm too much of an appliance user to make anything of it, would love to know more Linux stuff but just can't find the commitment to spend more time sat at a screen, in my own time. The split drive boot method sounds like a good solution, if the use…
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Would be interesting to know if "Plug and Pray" was enabled on the Kiwi and router (also basic network info/ router type). The root no password thing is not exactly going to make it easy to see who was trying, if that was the route, at lea…
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OK well that is not so surprising, I temporarily disabled a router rule while setting up a vpn the other day and was reminded how quickly scanners find open ports and start trying default credentials. I don't allow my Chinese CCTV any web access for…
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Looks clean as viewed from Virustotal URL checker, my local Kiwi same, perhapse it requires a certain radio to be top of the list (if they follow one or more links). Often these reports are checksums so maybe one radio throws a bad number that has b…
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Excellent, will get lots of use here thanks.
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The sticky post option is from the forum admins side and ideally it is then locked (or limited) so that discussion does not go on in the same thread. At work I have a little MediaWiki (TurnkeyLinux) and those once-a-year weird software tweaks get no…
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I think that far down the install is OK I'm thinking about the minimal WSJT-X with dependencies, making sure kiwirecorder is working etc. Its a good post above as someone quite possibly will change the directory name then wonder what is up. For exa…
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If it works OK with a normal Linux skill set it should be easy to list the steps and have others check those actually work on a fresh install. Yesterday I was looking for a file that someone had included as part of a software build but it was (only)…
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Lets say x64, if I have VM's they are generally x64. SDRPlay do a PI image, gets someone going with their kit and a base PI as quickly as writing the image and booting, I'd actually prefer to export myself a clean an OVA file I could import to ESXi…
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Its a Debian VM on VMware ESXi or Ubuntu, I'm not bothered, can be anything but I have an ESXi host running so though it would be a fifteen minute job. You're (respectfully) missing the point, IMHO it would be great to have a run through of steps t…
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Has anyone got an install guide from say Debian net install to working Kiwirecorder and WSPR script? I set up a small virtual machine rather than update the previously used PI, started with headless Debian net install (64Bit) but I found it was a ri…
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I actually got some helpful response from Linode abuse address (the first time anyway) trouble is there are so many bad servers and the CMS company said their CMS was not insecure but "people leave the default credentials on there" (not su…
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OK thanks, that did occur to me but checking back through the logs couldn't see it before so was a bit concerned. I look after a small FTP server for work and we must have got on some BOT list as we'd see a pattern of malicious brute force connectio…
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My second one has arrived, not tested yet, and of course have to work late today.
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I use metal cases like Amazon product B074MSHJND, admittedly I don't have the latest PI so didn't have to make any changes to the CPU lug height. I might modify one for the later PI when I buy one but would not recommend to non-tinkerers it will str…
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With mine it seems to be in autoscroll mode, the up and down directions are within that frequency band so it's real easy to scroll very fast. I could see Morse signals scooting past the waterfall so I hadn't seen anything else amiss, just the fast s…
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Right, list me as well confused. I did the second amp with 700cc rims (covered in heatshrink). I added a link earth socket to CAT5 shield for grounding route options. Angled loop null as best I could for next door, buried the CAT5 and earth drain w…