[KX3] PCB Layers
Locked
 
|
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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
|
|
On 04/15/2012 07:26 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 I have no idea whether the KX3 uses a multi-layer board or not but it wouldn't surprise me. Most all electronics these days use multi-layer boards. The motherboard in the computer you posted your email with has at least four and probably six layers. Multi-layer boards help keep the size down. -- R. Kevin Stover AC0H ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
|
|
In reply to this post by Pierre
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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- 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 ************************************************ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
|
|
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 >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > -- > > > 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 > > ************************************************ > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
|
Administrator
|
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 >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[hidden email] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> >> >> -- >> >> >> 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 >> >> ************************************************ >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
«
Return to [KX3]
|
1 view|%1 views
| Free forum by Nabble | Edit this page |