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

[David McGough]

Ideal for mountain top repeater sites or any location with limited power 
availability. Runs your repeater for years on a single banana peel!

http://dl36mmdz94630.cloudfront.net/uploads/assets/images/000/035/936/large/Screen_Shot_2015-08-10_at_9.46.03_PM.jpg




On Sun, 1 Apr 2018, "Jay Urish via arm-allstar" wrote:

> Where is the USB connected Mr. Fusion? I wanna run my node on banana 
> peels, bud light and coffee filters!
> 
> 
> 
> On 03/31/2018 10:42 PM, "Doug Crompton via arm-allstar" wrote:
> > 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>
> > *
> >