G8JNJ
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Sounds like a jerk. Send them a note saying "thank you for bringing this to my attention", and that you have notcied that they have "outstanding and unpaid invoices for their previous 'metered' commercial usage of your KiWi", and…
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Check the DIL resistor packs between the ADC output and FPGA before you do that.
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One slight problem, and this one is for John. I've been using the waterfall time stamp function. Which has generally been OK. However if I use the very slow waterfall speed of 1Hz, the time stamps are very erratic. Sometimes they are present, someti…
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Only if the KiWi admin has decided to put it in three channel mode during initial configuration. Plenty of previous discussions in this forum about the number of channels vs. bandwidth. From the KiWi admin configuration page. "The original Kiw…
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OK I originally used ctrl+shift+j , but that does bring up a different console in Firefox. F12 works just fine. Note that you do have to permit automatic and multiple downloads in the browser config for it to work correctly. Thanks, Martin
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Hmm, that's strange. Any ideas why it says export waterfall is not defined as the error message ? Regards, Martin
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It was the Firefox browser console I used. https://forum.kiwisdr.com/uploads/933/ZO3KUYE6Z7S2.png However it worked in Chrome. Regards, Martin
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Hi, I just tried this but I get an error message ReferenceError: export_waterfall is not defined However using the method as defined in the previous thread, I did manage to grab this solar burst event earlier today. https://forum.kiwisdr.com/uploa…
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I usually find re-soldering the easy part. Removing multi pin parts without damaging the PCB tracks can be challenging. Sometimes you have to destroy the part in order to make it easer to remove the individual pins. Once you have cleared the board.…
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Do you actually use the external clock input ? If not then you could just remove U403/U406 and replace the switched RF paths with wire links. But either way it would be a quick method of testing for the fault. Regards, Martin
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Hi John, As I suspected, I was misunderstanding how this functions. I camped without queuing, so when the user I was camped on left, the audio was disconnected, but the GUI remained. This periodically happened to a few of the other folks on the net …
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Hi John, Oh dear, yeh that should be way down the list. But don't worry, for all your good work, I'm sure you will end up being hosted in 'The Cloud'. Regards, Martin
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Ah OK, that doesn't look good. Assuming all the supply rails are good, and clock signals are present, I can't think of what else to try other than piping clock & ADC output signals into the dud board from a good working one to see where the sign…
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I think if you can't select a frequency then I suspect the firmware may be corrupted. Have you tried restoring it from an SD card backup ? I had a problem with one of my KWi's that affected the ADC, but I could still tune to different frequencies, e…
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Hi John, Ah OK, I wasn't aware of this. So in that case, I don't understand why KiWi's with large masked chunks of spectrum still get such good SNR scores. Is it because the average is across a smaller number of bins that are included in the calcula…
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"Thanks to all for the info but I don't want to pay too much attention to things like signal-to-noise scores etc. As an example: Number 1 in this top 200 is the SDR from VK3KHZ, Croydon, Victoria, Australia. Someone ignorant would think "h…
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An interesting initiative, and anything that can be used to provide a better indication of the better KiWi's is to be encouraged. There are lots of previous SNR discussions on this subject that can be found in this forum. Some time ago I also asked …
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Agreed only about 10% of all the KiWis are performing at anything like their full potential. Use this dynamic list of KiWi's, but only bother with the first 100. http://rx.linkfanel.net/snr.html If you sort by the second column, Internal HF new, by …
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Use USB or similar and tune 1kHz off from a carrier, then reduce the bandwidth about the carrier. Can you still hear the carrier, assuming it is actually within the very narrow passband. If this works, try it with fast morse or a single RTTY tone i…
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Hi Rod, I'm not sure I understand what you are describing. However I have a suggestion for a test you could try. Choose a KiWi and get yourself and your other net users to use up all of the receiver slots. Make sure one of you tunes to the frequency…
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Ha, Maybe they don't know it is just that ? It is quite strong and it does sound fairly spectacular, so it must be conveying a secret message, right yeh... If the frequency range is unusable due to the noise, why not just mask it ? Alternatively ad…
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Hi John, Yes I checked the KiWi version was v1.608 (or later) before I updated the antenna switch extension. My confusion was regarding the correct GitHub repository, and finally using https://github.com/jks-prv/KiwiSDR-antenna-switch-extension.git …
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Hi John, Thanks for this. For others that may be upgrading, please be aware that the installation instructions on the JKS Github page jks-prv /KiwiSDR-antenna-switch-extension Iink to the original OH1KK Github repository git clone https://github.c…
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Hi Glen, If you take a look at the spectrum analyser plots in the previous thread I linked to, you will see that even with the standard metal case, there is a significant amount of radiated noise at <150MHz , 450MHz, 750MHz & 1.5GHz. My conc…
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Yes the formatting is all over the place. I have perviously tried extracting the Transmitter co-ordinates to convert into a .kml file and it is a mess. Regards, Martin
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My KiWi metal case modifications were illustrated in this previous thread. https://forum.kiwisdr.com/index.php?p=/discussion/comment/7539 Regards, Martin
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And yes, I know I'm being very picky....
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Hi John, OK I didn't describe the problem correctly. When the TDoA has been completed and I choose to see the TDoA map with Hosts, I can see the selected KiWi's in yellow and the TDoA heat map. Maybe I'm doing something wrong, but I can't find a wa…
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Hi John, Thanks for adding the sample time options to the TDoA extension, much appreciated. However I've just noticed that the reference locations and KiWi hosts don't seem to show up on the TDoA results map with hosts. I don't know if this is some…
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Ak OK, I misunderstood that point, it makes sense now. No wonder I got confused about what I was seeing. I don't think it will allow me to examine what I hoped I could, but never mind I'll just continue to use the Oscilloscope software. Regards, Mar…