[arm-allstar] Pi3B+ greatly exceeds expectations!!!

[Doug Crompton]

ANNOUNCING A BIG BREAK THROUGH!

We have lab tested a Pi3B+ this weekend and found it greatly exceeds
expectations. A method to extract heat from the device has allowed us to
push the processor speed to almost 4Ghz and keep the core temperature below
about 60C. This has resulted in the ability to run four radio nodes
flawlessly. We will be testing more but in the initial tests we did not
connect a USB hub to connect further radios. We estimate at least eight
radio nodes running a combination of Allstar, Echolink, and IRLP with
multiple supermon connections would be possible. In our tests the load
average never went above about .10.

We will be publishing the full details in the coming weeks as well as
enhanced software to support the higher speeds. The specialized cooling
mechanism will be required and full construction details will be
forthcoming. Attached are preliminary photos showing the specially designed
"heat tube" which extracts heat from the Pi3B+ processor. It essentially
sucks the heat out and transfers it to the large heat sink where a high
speed fan dissipates the heat.

The other benefit is that the Pi3B+ board even at these greatly extended
speeds draws only slightly more current. The cooling fan actually draws
more current than the Pi itself.

This is a great break through that we will be sharing with the rest of the
world. You may even hear about it on the evening news! Stay tuned for more
information.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
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