jks
About
- Username
- jks
- Joined
- Visits
- 35,631
- Last Active
- Roles
- Member, Administrator, Moderator
- Points
- 602
Reactions
Comments
-
Yeah, it's funny you mention AI and PCB design. Just yesterday (not kidding) I was in KiCAD and had to put together a very large BGA footprint for a part not in the KiCAD standard footprint library. It was moderately annoying because out of the squa…
-
Agree. One thing for me that I didn't fully appreciate is how the stackup can affect loop area for high frequencies more than you might think. Especially since the inter-plane distances can be so much less in the prepreg (e.g. top to L2) compared to…
-
I replied on there. I don't think it's an issue (I just tried it and it worked fine). By default the sampling hosts are not shown unless you change the "TDoA result" menu to "TDoA map with hosts". You have to do this for each run…
-
And there went half my day. This is from the forum server. Goddamn Chinese AI companies. OpenAI.com too (although they were slightly better behaved). I had to beef up the IP filtering on the forum server to match what the proxy/web server (kiwisdr.…
-
L407 is a ferrite bead on the 3V3 going to the ADC preamp. You could (carefully) bridge those pads over with a solder blob using a small soldering iron. It isn't critical to replace the bead.
-
The part about pushing on the board affecting the waterfall speed is completely bizarre. The only thing I can imagine is if there was some corrosion on the inter-board header pins causing the SPI clock to be intermittent. But that seems unlikely. Al…
-
So a few things. First, kiwid always runs at full speed. To achieve the required realtime response on the relatively slow Beagle it uses a programming technique called demand polling. And that means it runs flat-out all the time. This also means tha…
-
Yes, definitely check the CMC as Martin and the link above describe. Another thing to try: Separate the two boards and power the BBG alone via a USB-A to USB-micro cable and an old cell phone 5V USB-A output power supply (1A is fine). The USB-micro …
-
I think there was a discussion about this a long time ago. There are indeed industrial drying machines, amongst others as @studentkra mentions, running huge RF power that cycle on & off to dry wood and other materials. Since they're built as che…
-
Should be better if you restart to get v1.815
-
I happened to catch it shifting down 1.5 kHz at one point: https://forum.kiwisdr.com/uploads/777/ZONNLSP3NEZ1.png
-
Just like a real computer the Beagle has strict requirements on the applied +5V voltage waveform. But because the Kiwi are being fed by user-provided quiet power supplies (hopefully quiet) there are no standards enforced. As you'd see with a compute…
-
Hmm. Haven't been able to replicate here so far. Would help if I could connect as admin to your Kiwi and take a look at the log. Email details to support@kiwisdr.com if possible please.
-
Technically it violates the entire spirit of the Kiwi ethos. Why would you spend money on a Kiwi as an IQ generator to drive SDR software on a PC when there are better alternatives for that kind of setup? But having the option is another point of fl…
-
And now SDR++Brown has Kiwi support. Audio bandwidth only of course (for now). Nice Kiwi map integration. I'm still working on "advanced tech" that will make the bandwidth increases mentioned in the posts above more easily obtained. Which …
-
Well, okay. But you have to remember the purpose and origin of the GPS code used in the Kiwi project before you go comparing it against a commercial GPS timing receiver. The GPS code is from Andrew Holme's "Homemade GPS receiver" (http://w…
-
I think so. But it's been years since I looked at that stuff. WGS84 shows up a lot in the .h files here: https://github.com/jks-prv/KiwiSDR/tree/master/gps
-
Well, as I said initially, I don't know C#. So I cannot say if this code will work or not. You just need to try it and debug it. I didn't know Python when I started working on kiwiclient / kiwirecorder, which was not written by me initially. I only …
-
You can still use C#. But the kiwiclient / kiwirecorder code will show you exactly what you have to do to use the Kiwi API and process the audio stream that is transported over the web socket.
-
I don't know anything about C# Have a look at kiwiclient / kiwirecorder, written in Python. It does everything you need: https://github.com/jks-prv/kiwiclient If you turn off audio compression you won't have to deal with the PCM coding.
-
Don't ask me "what can I do to fix this" without giving me some information to help debug the problem. I am not a mind reader. For a start, what's your serial number? Post here or email support@kiwisdr.com. I can check the logs on the prox…
-
In the next release I'll add a "custom" entry in the SNR measurement interval menu with a corresponding time field where you can enter the number of minutes you want. I think I can also add a checkbox that asks for each ham band to get a s…
-
So this sounds like our old nemesis: a marginal power supply (or voltage drop on a marginal power cable) that is causing trouble when there is higher combined current of the two boards together.