#591

[@gorba2008]

Hello INSAI Guy, very good service. Please, when possible, show us running dynamic tests. I recently bought a TinySA and through your videos I am eliminating all doubts, congratulations and thank you very much !!!

[@gregmay9097]

If you grind or sand down the bottom of the case so the slug is flush with the case and then lap the base and the heatsink you will get a much more efficient heat transfer.

[@subramanianr7206]

+36 dBm in and -16 dBm on the sniffer probe...very handy attenuator for the tiny SA. Yes, you ought to have one such contraption. The idea of having another aluminium heat sink is just ok though not a perfect one; of course there is a layer of heat sink compound to ensure little more efficient heat transfer.

[@JohnTarbox]

Very nice work. 👍

[@robertdixon8238]

Nice mini project. Did you identify the need for extra GND by measuring S11 using the nano VNA? What frequency does the load work to? I'm pleasantly surprised at how simple the "sniffer" is. Do you have an S21 plot for that? From watching your videos, I ordered a nano VNA and a Tiny SA, but USPS is really slow ATM to Australia. Thanks for showing the capabilities of these pieces of gear. Hope your Tiny is sorted soon, and it will be interesting to understand what the issue is.

[@IMSAIGuy]

Yes I used S11. I will show that in a future video what shows some odd behavior. Then a video on fixing an RF ground problem and making the load operate out to 1GHz

[@FEPLabsRadio]

I picked up a Celwave DL-200 off of ebay. It's mostly heatsink, but the same kind of innards. It's rated 200W PEP, so bigger obviously physically. My question is what is the difference in an RF tap like this vs one that is wired up with a divider bridge in it? Is there any inherent goodness of a wired tap vs this inductive type?

[@IMSAIGuy]

probably more repeatable part to part. or predictable level.

[@jimshooting4294]

Are you selling them

[@IMSAIGuy]

no