G8JNJ
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It all seems OK to me. What browser are you using, have you tried another ? Also have you tried clearing the cache ? Regards, Martin
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Hi Jim, It does have a fairly comprehensive EiBi database as standard but it usually isn't the defult. Try shift & pipe ( | symbol next to the left shit key) to toggle between the local database and the EiBi one. I use the local database as my l…
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Hi Jimmy, That's odd. What happens if you ask for it's status using the webrowser as normal with /status after the port number, assuming you are using 8073 192.168.1.151:8073/status Unfortunately that's about my limit with Linux too, but it looks li…
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Try clearing your browser cache or try another browser. It may just take a while to update fully, so I would leave it for a while before considering a recovery. Can you ping it or SSH into it ? Regards, Martin
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Thanks John, Much appreciated. Regards, Martin
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Hi John, Hope you are well. With the recent improvements in propagation conditions, I've been doing a lot of listening to NBFM signals on the upper HF bands. I've also been playing with SDRangel to control and stream I/Q from the KiWi and then use S…
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https://forum.kiwisdr.com/index.php?p=/discussion/comment/15303#Comment_15303 Ha, Good catch Richard, I should have thought of the obvious explanation first :-) Regards, Martin
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https://forum.kiwisdr.com/index.php?p=/discussion/comment/15296#Comment_15296 Hi Andy, It's often called the rusty bolt effect, where the layer of rust forms a crude diode junction, a bit like the old cats whisker, coherer or carborundum detectors u…
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https://forum.kiwisdr.com/index.php?p=/discussion/comment/15293#Comment_15293 If you add 10dB of attenuation and the 'ghost' signal only reduces by 10dB, then it's likely to be something ahead of the attenuator (at the antenna) that is causing the s…
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Hi Joe, Yes I've been successfully using N30 cores in lossless feedback (Norton) amplifiers, mainly in Wellbrook clones. Regards, Martin
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Hi, N30 material is pretty good for this application, probably slightly better than 73 mix. I've used similar N30 cores in broadband loop antenna amplifier circuits, and they performed very well. Regards, Martin
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Hi Jimmy, Regarding the interference that can be seem around 300kHz (and some other frequencies). https://forum.kiwisdr.com/uploads/462/9OGRB57X50OK.png I think the two light blue wiggly signals are from the same source, as the changes in frequenc…
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Hi Jimmy, OK sounds good. Iron powder ring cores do have their uses, and may make some difference to your level of interference. However if you can get hold of the correct type of ferrite rings, they are much more likely to be effective on the short…
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From a previous posting, if you are really stuck, you could try this method, but only if you have nothing else to loose. Backup your existing configs first, so that you can restore them if required. "Your Git clone of the Kiwi sources may be tr…
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Ha yes, their description is confusing too. Green Iron Power Ferrite Toroid Core 63mm Outside Diameter Specifications: Product Name Ferrite Core Material Iron Color Green Overall Size63 x 38 x 25mm/ 2.5" x 1.5" x 1"(Outside Dia.*Inne…
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Hi Jimmy, I may be wrong, but to me the green ring in your photo doesn't look like a 'ferrite' ring, but it is more likely to be 'iron powder', as they are normally coated in a shiny epoxy paint and colour coded according to their properties. They a…
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Hi Jimmy, Ha, perhaps it is a 'Ming well' supply after all :-) In my experience Meanwell supplies are usually pretty good. But with all of my Switched Mode Supplies, I tend to modify them by adding a large electrolytic (ideally greater than 2200uF) …
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https://forum.kiwisdr.com/index.php?p=/discussion/comment/15265#Comment_15265 OK, some more questions and suggestions... Where is the antenna mounted relative to your property ?, as it may be picking up noise directly. Even if your KiWi power suppl…
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Hi, It's probably interference from a swicthed mode power supply. A choke balun may help, but the best first step would be to determine if it is being produced by any equipment in your property. Most interference is usually made by something very cl…
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Hi ArturPL, That's a good solution, I didn't realise you could do that. I think I'll try that myself. Regards, Martin
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https://forum.kiwisdr.com/index.php?p=/discussion/comment/15250#Comment_15250 Unfortunately that's how it tends to go, you fix one noise source and then find another. I seem to spend a lot of my time trying to track down and fix individual noise so…
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https://forum.kiwisdr.com/index.php?p=/discussion/comment/15249#Comment_15249 Creating DX labels is a good solution as the CB channels have gaps between them and don't always follow the standard plan. In addition there is a mixture of AM / NBFM and …
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I've also had a lot of Alibaba addresses, just sitting on a random frequency for hours on end, and that was on a currently non-public KiWi that I'm testing. I added 8.192.0.0/11 to my personal balcklist as a precaution, but I'm not sure of a suitabl…
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Hi Rob, I also noticed that the band bars in the DX labels window don't seem to appear on frequencies above 32MHz, and I wondered if it was somehow possible to remove this limit. Regards, Martin
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I'm pretty sure very little of any political, military or tactical value or other similar information can be obtained by semi-casual monitoring of traffic on these frequencies, or indeed any others on the Short Wave bands. An internet search will u…
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https://forum.kiwisdr.com/index.php?p=/discussion/comment/15192#Comment_15192 This is tricky. It's probably because the lightning rod is a 1/2 wave some where around 4MHz and 1/4 wave at around 2MHz. The only real solution is to use a balanced anten…
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Hi John, Thanks for the HFDL updates, the yellow current aircraft marker is a great addition. Regards, Martin
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In the Security tab on the admin interface, leave the Admin password blank (no password) this should prevent any external internet access to the admin interface. Regards, Martin
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Hi Steve, I just tried a TDoA and it alll worked fine with a position report returned to me a few seconds after the audio sampling had been completed. Try this TDoA which should show the TX location as Cornwall. http://kernow.hopto.org:8073/?f=5109.…
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Binocular cores have a much more enclosed magnetic path, which reduces flux leakage and improves coupling, so you shouldn't need to twist the wires. If you are not interested in frequencies below 1.8MHz, then two turns may be OK, personally I'd not …