KPA-500 cabling
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G’day all,
Like many others I am waiting, with eager anticipation, for my KPA-500 kit to arrive. I have a question regarding driving a KPA-500 with a IC 756 Pro 3. I know that it can be done using the PA key out/in cabling, no problems there, however I would also like to use the KPA-500 15 auxiliary port connected to my 756 using either the 8 or 13 pin DIN port wired as per the cable connections shown on pg. 17 of the KPA-500 manual. My question is twofold: 1. In the KPA-500 manual it states that a common VGA cable should not be used, apart from the obvious pinout configuration is there any other reason why not? 2. I spoke with Dale at Elecraft and he informed me that Elecraft only supplies an auxiliary cable to suit the K3 (P/No KPAK3AUX), no surprise Hi Hi! I wonder if there is a supplier of a suitable interface cable yet in the states? -- 73 Dale - VK4DMC ______________________________________________________________ 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 |
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On 6/10/2011 1:50 PM, Dale wrote:
> In the KPA-500 manual it states that a common VGA cable should not > be used, apart from the obvious pinout configuration is there any > other reason why not? Pin-out is a very good reason -- many (most?) VGA cables do not have all pins connected. 73, Jim K9YC ______________________________________________________________ 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 |
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On Sat, Jun 11, 2011 at 12:26 AM, Jim Brown <[hidden email]> wrote:
> On 6/10/2011 1:50 PM, Dale wrote: >> In the KPA-500 manual it states that a common VGA cable should not >> be used, apart from the obvious pinout configuration is there any >> other reason why not? > > Pin-out is a very good reason -- many (most?) VGA cables do not have all > pins connected. Further; many of them have the pins that are not used for VGA shorted to the shield at both ends, so even if they pass a continuity test from end-to-end, they won't work very well ;) ~iain / N6ML ______________________________________________________________ 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 |
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In reply to this post by Jim Brown-10
And many of the pins are shorted together in the connector.
Monty K2DLJ On Jun 10, 2011, at 8:26 PM, Jim Brown wrote: > On 6/10/2011 1:50 PM, Dale wrote: >> In the KPA-500 manual it states that a common VGA cable should not >> be used, apart from the obvious pinout configuration is there any >> other reason why not? > > Pin-out is a very good reason -- many (most?) VGA cables do not have all > pins connected. > > 73, Jim K9Y ______________________________________________________________ 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 |
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In reply to this post by Dale
A good cable is the 6-foot SVGA M/F cable from www.cablewholesale.com, part
number 10H1-01206. All 15 pins are connected through, no pins are shorted together, and there is a foil shield with drain wire - and the cable is only $3.25. Here is the spec sheet on that cable: www.cablewholesale.com/pdfspecs/10h1-012.pdf. So for non-K3 users, just cut off the male end and connect your radio-specific connector. For K3 users, you can just remove the unnecessary male pins (use needle nose pliers to twist and pull out). Or you can use a 31H1-05200 HD15 M/F adapter ($1.76) and break out the pins on this M/F adapter should you wish to preserve the cable as-is. Cable Wholesale also sells a SVGA splitter (2xfemale-to-male) with all pins connected through. Part number is 10H1-27708 and these are $3.46 each. I have no connection to these folks, other than I've been using their cables and adapters. Phil - AD5X ______________________________________________________________ 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 |
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Please note that several pins must be broken off or removed so that not all signal lines are passed from K3 to the amp.
Eric www.elecraft.com _..._ On Jun 11, 2011, at 7:15 AM, "Phil & Debbie Salas" <[hidden email]> wrote: > A good cable is the 6-foot SVGA M/F cable from www.cablewholesale.com, part > number 10H1-01206. All 15 pins are connected through, no pins are shorted > together, and there is a foil shield with drain wire - and the cable is only > $3.25. Here is the spec sheet on that cable: > www.cablewholesale.com/pdfspecs/10h1-012.pdf. > > So for non-K3 users, just cut off the male end and connect your > radio-specific connector. For K3 users, you can just remove the unnecessary > male pins (use needle nose pliers to twist and pull out). Or you can use a > 31H1-05200 HD15 M/F adapter ($1.76) and break out the pins on this M/F > adapter should you wish to preserve the cable as-is. > > Cable Wholesale also sells a SVGA splitter (2xfemale-to-male) with all pins > connected through. Part number is 10H1-27708 and these are $3.46 each. > > I have no connection to these folks, other than I've been using their cables > and adapters. > > Phil - AD5X > > ______________________________________________________________ > 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 |
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