cathalferris
Now also known as EI4IWB, passed the IRTS/Comreg HAREC exam, and now fully licensed as a Radio Amateur.
About
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- cathalferris
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Comments
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Resurrecting the thread with pertinent information. I've just installed one of these: https://www.sv1afn.com/en/gnss-gps/-7.html LNA / bandpass filter / multiplexer. No external power required, the bias-tee from one of the fed devices works perfect…
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Openwebrx is the software that does the decoding of the radio signal input to show on screen or to pipe to other programs. The original author maintained a semi-public directory of stations that used the software, but he has since stopped working on…
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One more location where sdr.hu is seen: In /var/log/messages on daemon start, I get this line: Jun 12 14:39:37 wikipi-2 kiwid: 00:00:07.455 ........ TIMEZONE: lat/lon from sdr.hu config: (52.660000, -8.550000) Though you might like to k…
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The one useful thing about the current as-implemented values is that they are consistent across all of the installed and up to date Kiwis in the wild. That allow a few projects to log on and get SNR values for various bands and display on a webpage …
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It'll be interesting to see by how much better the numbers look.. I'm hoping I'm right anyway! :) I spent too many years working inside overclocked PCs trying to improve airflow not to try to help if I see something obvious at least.
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That'll work a *lot* better if you seal the space between the fan and the perforated case with e.g. masking tape. Stops a lot of air coming in from the side to be drawn through the fan, and forces ducting of interior air to the fan and out. It's al…
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If you're comfortable with Linux commandline, you can ssh into the beaglebone as root (the ID number of your board should be the password if you haven't already changed it), navigate to /root/Beagle_SDR_GPS and execute an "up" command. See…
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I had thought that AMU is emulatable with USB, and move the bottom of the passband closer to the carrier wave, and similar for an AML. Add in the autonotch filter if the carrier is intruding. I'm open to correction on this, but it makes sense to me.
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I know the weather maps can be saved with the clicking of the red circle in the plugin and you'll be prompted to save it when you click stop, and you can right-click and save-as from the pic as well. I think the RTTY output can be manually selected…
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I saw on github there was an update, so I did a 'git pull' on my two rpi4s that pull wspr streams from my two kiwis, but it would appear that grafana graphs are not taking new measurements. I have confirmed that my spots are still being received at…
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Agreed. A no-power USB cable would also reduce one avenue of possible RFI into the Kiwi as well, though I've not had much problem from that particular route.
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After some time working in the enterprise-level computing environments, I've come to *really* like proper out-of-band access to things, and it's *really* cool to have that on the Kiwi.
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^you'd have fun with that networking setup to be able to access the usb-connected without logging in locally to the ethernet-connected Kiwi. Certainly possible, but nowhere near as clean as a USB hub with 4 ports, each going to the usb on each kiwi,…
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I've had success in networking over USB, specifically with my BeagleboneAI and second Kiwi - but I think that the same procedure would apply without changes to the normal Beaglebone as supplied as standard with KiwiSDR kits. I've connected the BBAI…
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Do you have the Kiwi Ethernet speed set to 10 or to 100? (Admin page, Network tab, Ethernet Adapter Speed). Might be good to set that to 10, if only for RFI minimisation. It may be worth making only one connection possible from each IP (admin page. …
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Github is down at the moment, which will affect Kiwis attempting to update. Nice job with the SAM inclusion. It'll be interesting to try the cross compilation as well, but that's a few weeks away for me.
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I'd prefer to use a decently specified buck regulator in that instance, as pushing 6V in *could* put some components out of their tolerance envelope, and it's very likely to make the power management circuitry run hotter as a direct result. A buck …
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I would suspect something in the neighbourhood. I think I saw something like that with a power supply that was very quickly chopping and changing the frequency it was operating the primary transformer at. All of the peaks seen appear to be spaced i…
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@WA2ZKD My kiwis are aready being listed on your pages. SWLIO52RP in Limerick, Ireland, MFA-30 cheapie amplified antenna as a 4m horizontal dipole literally on the lawn in the garden, gets ~15% of world's wspr transmissions, top 50 is positions. SWL…
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wsprdaemon v2.8a upgraded via 'git pull' and running on two separate Pi4s, apparently without issue at the moment. Looks good.
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What was the cause at the end of it all?
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And that prevention of autoplay is an absolute necessity.
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How many listeners in total are attempting to run on the Pi? Have you recently measured the actual voltage being supplied to the Pi, and have you measured the voltage actually supplied to the Kiwis? Never assume the power supply system is fine - al…
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Something I came across recently - Google group massages standard false colour spectrum gradients for decent improvements in differentiation: https://ai.googleblog.com/2019/08/turbo-improved-rainbow-colormap-for.html The comparisons shown appear to…
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Looks as though all the 192.168.x.x addresses are the local network listeners; but that the Kiwi is reporting all in use though 3 are definitely being shown in the admin interface as being free. Very interesting that the geolocation for VR2BG's L…
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I've updated to 1.383, and I can (at least at the moment) create the error condition on demand. 6 WSPR listeners are active, coming from wsprdaemon.sh version 2.7a on an RPi4 nearby. Open a new normal browser session, click DRM. DRM plugin works fin…
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Understood, thank you.
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More useful pic: (Image)
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Hi John, It has happened again, and this time I'm not doing anything until you're happy for me to do anything. Same URL, same password as before. Please feel free to do whatever you need to, to get what you need. I'll be playing with my other SDRs a…
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^ understood, apologies! Duly noted for any future misbehaviour. In this instance I had the first post up before I tried the mass-kick of users. I'll know better for the future.