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

[Tony Ross]

UTC laddie, UTC.

On 03/31/2018 08:45 PM, "Kevin Walsh via arm-allstar" wrote:
> It’s not midnight yet....
>
> Kevin
> W8KHW
>
> On Mar 31, 2018, at 11:42 PM, Doug Crompton via arm-allstar 
> <arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>> 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>
>> *
>>
>> <DSC03249.jpg>
>> <DSC03248.jpg>
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>
>
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