[Elecraft] [KX3] PCB Layers

[Wayne Burdick]

Yes, the KX3's PC boards have 4 layers. This is more expensive but  
allows for much cleaner signal routing, including nearly unbroken  
internal ground and power planes. It would be essentially impossible  
to pack a 160-6 meter, state-of-the-art radio in to 1.5 pounds without  
this and other techniques we used.

Wayne
N6KR


On Apr 15, 2012, at 9:09 AM, Niel Skousen wrote:

> given the chipset and technologies, its extraordinarily unlikely  
> that the KX3 is not multi-layer.   The interconnection density and  
> pin arraignments on these chips virtually ensure that multilayer is  
> the only way to build a compatible PCB.   Even the lo-res video's  
> posted todate, show component densities which ensure multi-layer.
>
> Someday, after the shipping backlog is down etc,  It would be VERY  
> VERY interesting to see a KX3 technology presentation.   The  
> management of digital, RF and audio in a very small package on  
> multilayer PCB to achieve the performance of the K3 and KX3 would be  
> fascinating.  Even a layer plan (what functions on which layers)  
> would be of interest.
>
> Niel
>
> On Apr 15, 2012, at 9:37 AM, Gary K9GS wrote:
>
>> Hello Pierre,
>>
>> No idea what's inside the KX3 but it's probably a multi-layer PCB.   
>> If
>> you look very carefully at the edge of the board you can probably  
>> count
>> the layers.  Sometimes it helps if you moisten the edge...it makes it
>> easier to see the layers.  When I say moisten, that doesn't mean  
>> get it
>> wet.  Just dip you finger in water, shake off the excess, and rub  
>> your
>> finger along the edge.
>>
>> Multilayer typically means more than 2 layers.
>>
>>
>>
>> On 4/15/2012 7:26 AM, Pierre wrote:
>>> Hi Elecrafters
>>>
>>> Other posts refer to the KX3's PCBs as of the mutilayer type. Does  
>>> it means "double sided" or are there also other layers inside the  
>>> PCB? And if so, how many?
>>>
>>> 73
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>>
>> -- 
>>
>>
>> 73,
>>
>> Gary K9GS
>>
>> Greater Milwaukee DX Association: http://www.gmdxa.org
>> Society of Midwest Contesters: http://www.w9smc.com
>> CW Ops #1032   http://www.cwops.org
>>
>> ************************************************
>>
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