RTL SDR BLOG v3 Cooler
prusaprinters
This is a duct to cool an RTL SDR device.This uses:(4) FYSETC stepper motor heatsinks(4) 10mm M3 bolts (self threads into duct)(1) 30mm Raspberry Pi fanPrint as stl is oriented, fan opening down. Prints without supports.Install heat sinks roughly 8mm back from end of body(see pics).Housing slides over body/heat sinks.Fan pulls air through duct body (exhaust orientation).Power fan off 5v header on Raspberry Pi or wire to USB for 5v connection. I used a few Dupont jumpers.I run my RTL SDR at 1090Mhz and the unit runs cooler for sure at around 80-85F while the room it's in is around 75F.The inspiration for this design was… parts already on hand. Fan and heatsinks. :)
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