RTLSDR Cooling improvement

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bg1ica
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Joined: Tue Apr 14, 2020 5:56 pm

RTLSDR Cooling improvement

Post by bg1ica » Tue Jan 19, 2021 9:57 am

Cooling improvement
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bg1ica
Posts: 3
Joined: Tue Apr 14, 2020 5:56 pm

Re: RTLSDR Cooling improvement

Post by bg1ica » Tue Jan 19, 2021 9:59 am

Cooling improvement
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rtlsdrblog
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Re: RTLSDR Cooling improvement

Post by rtlsdrblog » Wed Jan 20, 2021 5:37 am

There's not really a need to improve cooling, unless you are running them in a really hot environment or in an enclosed space without any sort of natural airflow.

Problem with adding a heatsink inside an enclosure is that a heatsink needs airflow to work. Without airflow in an enclosure space it could actually end up insulating the heat more and making matters worse.

I see that you've added a thermal pad to the RTL2832U's heat sink which should help get that heat onto the case. But the RTL2832U chip doesn't really get hot. The main heat generator is the R820T2 chip which doesn't have the thermal pad link in your photo.

If you need cooling for an extreme situation what i'd suggest is leaving the internals stock, and simply blowing air over the metal case. This works extremely well.

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