Ah okay, so you want to change the SDR (Hardware). That has nothing to do with the Satellites
You can use any SDR that can receive on around 1,5Ghz (L-Band) without any Problems. Which of the SDRs did you get?
I had both of them and they are working fine.
So you have overheating issues?
Also it would be helpfull to know where you live (country is enough).
regards from Germany,