tinySA doing AM and FM generation and analysis

In this video I am using one tinySA as AM/FM modulated signal generator and another tinySA to look at the modulation.
More info on tinysa.org

[@kp4md]

Excellent demonstration. We call the method you use to demodulate the FM signal "slope detection"

[@prydekker]

Nice work Erik. I just bought one from Amazon. I've been working professionally with high end gear out of Keysight and my take away is that being able to bring something like this into the world and making it accessible, lights a spark for inquisitive minds and that's something that works in all directions for all of us. Slimme Nederlander. 🙂 I'm still exploring the corners. Looks like USB needs a little more filtering.

[@hamradio3716]

As usual, nicely done. Very impressive for such an affordable device!

[@AECRADIO1]

AM causes amplitude fluctuations in AM depth. Not frequency derived. % of AM level.

[@franciscojavier4270]

Very nice video Mr Kaashoek! I am a newby to electronics and I wonder if this device is usefull to do the aligment of vintage AM and FM radios like the ones built in a lot of ancient amplifiers from the 70s.

[@ErikKaashoek]

Yes. Look at one of my other videos showing the old radio. Many people are using the tinySA for aligning old radios

[@franciscojavier4270]

@@ErikKaashoek thanks for your fast and kind reply, i'll have a look at it.

[@ErikKaashoek]

Thanks for correcting. That was what I meant

[@MakeDoAndMend1]

Hi Erik . Great video. I have just purchased a Tiny . On mine in the menu screen it has a option save to SD but there's not a SD memory slot. Has yours got the same. If I try it is says failed. Cheers from old George

[@ErikKaashoek]

It's a bug. The menu option should not be there

[@MakeDoAndMend1]

@@ErikKaashoek Whoops sorry I sent the wrong message to wrong person. It's the NanoVna that has save to SD but no slot. But it does have save to memory which works. Cheers from old George 🤠🇬🇧

[@minazulkhan8287]

Hi , i recently purchased tinysa. I am new to it. Can u tell what is pupose of AM and FM modulation in it and how it can be utilized

[@ErikKaashoek]

It is intended for testing receivers

[@ahmetozdemir7173]

Mr. Erik, when I attach the telescopic antenna to tinysa and look at the signals, I see the graph of the frequencies in the fm band. I have a lack of knowledge about something. Are these graphics at that are formed as a result of demodulation when it first boot? Are they carrier signals?

[@ErikKaashoek]

Please join groups.io/g/tinysa/messages for sopport

[@ahmetozdemir7173]

@@ErikKaashoek Unfortunately I couldn't find the answer I was looking for. What I want to learn is; whether the tinysa as a receiver works like a superheterodyne radio.

[@ErikKaashoek]

@@ahmetozdemir7173 Please join the tinySA group via the link I gave you and ask the question there as any answer I give there will benefit more people

[@ahmetozdemir7173]

@@ErikKaashoek ok thanks

[@paolonervi2208]

After you have set the Low Modulation ON, how can you go back to see the spectrum...? tks de IU1CYF

[@ErikKaashoek]

I'm using two tinySA, one in output mode and one in input mode

[@paolonervi2208]

@@ErikKaashoek ok! now it's clear... :-) thank you very much for the time you dedicate in making all your userful videos! 73 de IU1CYF

[@Ibelieve218]

I have tried upgrading the firmware - getting aggravated not that easy.I have the firmware and the st program .the file loads in but i can't select the file to upgrade tinysa i am running windows 10 pro

[@ErikKaashoek]

Please join groups.io/g/tinysa for support

[@Ibelieve218]

question I have a motorola 800mhz 2 way radio can i use this to config the high side? its a handy talkie 5 watts output

[@ErikKaashoek]

If you use a good attenuator of at least 40dB that can handle 5 watt or you use a sample with 40dB attenuation between the radio and the antenna, yes But NEVER connect the radio directly to the tinySA, or even put antenna's close and transmit.

[@Ibelieve218]

@@ErikKaashoek I bought a 40db 15 watt attenuator that should do it?

[@ErikKaashoek]

@@Ibelieve218 Yes

[@sammin5764]

🌟🌟🌟🌟🌟

[@Chris_Grossman]

Slope demodulation.