I bought one and watched your videos to figure this device out. The spectrum analysis is interesting, theres a lot that I don’t know, but am learning. I especially like the Broadcast band signal generator for doing IF alignment, peak method and swept. These features alone make it a well worthwhile tool for my bench.
I'm struggling to find documentation on the FM deviation measurement on the latest firmware. It asks for frequency, modulation frequency and I assume expected deviation bandwidth? This then displays deviation. Is that correct? This is an amazing device by the way. Great work!
For the OIP3 - measurement it is neccessary to bring the two signals (10 MHz and 11 MHz in your video) together. On the tinysa.org website you state there is a "circuit" to do this. I assume, your are using a resistive combiner for this purpose, which introduces a 6 dB loss. Can you confirm or eleborate on this circuit? Thanks for this device, the videos and all the other work you put into this project!
I'm using first two 6dB attenuators connected to the two generators and than a resistive combiner with 6dB loss. The generators I was using for this demo where not very good and therefore you get the 9dB OIP3 with better generators, low pass filtering and the combiner you get a much cleaner two tone signal so you can measure the Input IP3 of the tinySA mixer. More info in the wiki: tinysa.org/wiki/pmwiki.php?n=Main.IIP3
@@ErikKaashoek As an Electrical Engineer that was educated back in the 80s I commend you on this accomplishment. Never thought that this was possible. If only people can really appreciate this.
I bought one and watched your videos to figure this device out. The spectrum analysis is interesting, theres a lot that I don’t know, but am learning. I especially like the Broadcast band signal generator for doing IF alignment, peak method and swept. These features alone make it a well worthwhile tool for my bench.
Excellent step-wise explanation of the use of this device for specific measurements
This is amazing! I just received my (original) TinySA, and looking forward to dwell into these special measurements.
I am late to the game. I did not buy the TinySA, but I bought the TinySA Ultra. Excellent! Thank yuo!
I'm struggling to find documentation on the FM deviation measurement on the latest firmware.
It asks for frequency, modulation frequency and I assume expected deviation bandwidth?
This then displays deviation.
Is that correct?
This is an amazing device by the way. Great work!
Yes. All forrect
For the OIP3 - measurement it is neccessary to bring the two signals (10 MHz and 11 MHz in your video) together. On the tinysa.org website you state there is a "circuit" to do this.
I assume, your are using a resistive combiner for this purpose, which introduces a 6 dB loss. Can you confirm or eleborate on this circuit?
Thanks for this device, the videos and all the other work you put into this project!
I'm using first two 6dB attenuators connected to the two generators and than a resistive combiner with 6dB loss. The generators I was using for this demo where not very good and therefore you get the 9dB OIP3 with better generators, low pass filtering and the combiner you get a much cleaner two tone signal so you can measure the Input IP3 of the tinySA mixer. More info in the wiki: tinysa.org/wiki/pmwiki.php?n=Main.IIP3
at 13:45 4.294GHz should be 4.294kHz
Yes, indeed. The latest FW does the bandwidth calculation
@@ErikKaashoek As an Electrical Engineer that was educated back in the 80s I commend you on this accomplishment. Never thought that this was possible. If only people can really appreciate this.