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TOPIC: Heat sink gets quite hot

Heat sink gets quite hot 23 Nov 2018 01:36 #1

  • G0VQY
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My SDR has been switched on constantly for a couple of days, although I've not done much operating. However, I noticed this evening that the heatsink was quite hot. Is it normal for the heatsink to get hot if the radio is not transmission mode?
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Heat sink gets quite hot 23 Nov 2018 07:38 #2

  • Rome
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For SunSDR2 PRO normal temperature in RX mode is 55 Celcius.
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Heat sink gets quite hot 23 Nov 2018 07:38 #3

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For SunSDR2 PRO normal temperature in RX mode is 55 Celcius.
Роман, Roman
Expert Electronics
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Heat sink gets quite hot 23 Nov 2018 11:50 #4

  • Charly
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Hello,
best is to fit a low power PC fan above the heatsink.
There are many ways to do so -
a 120mm (nearly silent) fan fitts well : I use long M4 screws & nuts for the fan covered with some layers of heat shrink tubing.
The covered M4 screws fit nicely into the heasink - there are other good proposals of how to fit a fan on the heatsink.

73, DF5VAE
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