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Its a low ESR cap for extra decoupling of the 3.3V. Not sure its needed. -- HBTE Files section: /g/HBTE/files Erik, PD0EK

Great work.? Thanks for sharing.? I see an electrolytic cap in your picture that I can not quite see what it is connected to.

http://www.download-dll.com/dll-msvcr100d.dll.html I downloaded the file and put it in the same SA.exe folder/directory. Ricardo Arakaki Sent: sexta-feira, 6 de dezembro de 2019 14:10 To:

I uploaded a small document describing how to connect the various modules of the tiny spectrum analyzer. You MUST use a 3.3V compatible Arduino (such as zero or due or compatible). Arduino code and a

I'm not saying the PL365 was a bad choice. I have a PL360, have used it a lot. But for a SW antenna, probably best to stick with just attaching a long wire to the PL365's whip antenna. The front end

Emi, Those are some wide open questions, so tough to answer. For example, most high performance antennas are designed to operate well only at certain frequencies, you apparently are interested in all

I see I uploaded the debug version. Have replaced it with the release version. Can you download again? You may need to install VC++ 2010 runtime more info here

Erik, I am sorry, I missed your post that said the same thing. I downloaded it but when I try to run it (Windows 10 Home 64) it says it needs MSVCR100D.dll Where do I find that? Gary WB6OGD

The windows SW executable can be found in the files section (see at the end of this post) You can test the SW without HW using the build in mockup device. Select "Mockup" at start and click? ok --

Erik, Yes, thank you.? I think I need to build one of these. I just did a quick search of ebay, looks like total part cost is about $35 (USD)...? that is fantastic. I was planning to build Farhan's

Erik, This is really excellent work. Thank you for sharing it with the group! Mike M. KU4QO

Thank you. Time to order some parts ;) Karl Heinz - K5KHK

I did tidy up and uploaded also the windows executable for controlling the tiny spectrum analyzer to the file area

When measuring the harmonics from my Softrock Ensemble RXTX I noticed a number of strange (e.g. none harmonic) signals such as at 0.8MHz , 9MHz, 12.8MHz and 13.8MHz Is the output of the RXTX really

The Tiny Spectrum Analyzer is limited in its frequency range by the highest frequency the SI4432 can generate and the choice of IF. With an IF of 434MHz and a maximum generated frequency of 960MHz and

It would be nice if the tiny spectrum analyzer would also have a tracking generator. It turns out to be rather easy to add such functionality. As a prototype I removed the 434MHz filter between the

OK,? I will run thru it and tidy up a bit. I will post it after I get the parts to test it out.

I won't mind if you tidy up the arduino code and post an updated version.... These are the commands used by the PC SW for the tiny spectrum analyzer: v : select VFO o: set output frequency a: start of

Hi Erik OK thank you, that *analogReference call* threw me for a while but I think I have worked it out. ON the GUI understood, I was a developer for many year.s? I never liked to let my code free

@Jim, The windows GUI SW is managed C++ that I hacked together in a couple of hours. I do not want to share it as its rather dirty code For the Arduino SW I upload the relevant code to the files