Oh buy the fingers got ahead of the brain. The intact cable goes from the KPA to the KAT, while the other cable goes from the K3 to the KAT.
I seem to recall that we sent out a few bad cables a while back. This sounds like one of them. Contact tech support to get a replacement cable. Jack Brindle, W6FB Elecraft Engineering Sent from my iPad > On May 2, 2014, at 9:28 AM, Jack Brindle <[email protected]> wrote: > > Interesting. > > I have a slightly different take. The two cables should be identical, with > the same pins missing. If the cable is broken, as Don suggests, you would see > very strange operation, but unless all the pins were broken, you would see > something. the fact that you are seeing nothing tells me that there is an > incompatible signal connected, probably the power-on signal. > > So, my suggestion. Use the cable with all pins intact between the KPA and K3. > Use the other cable from the K3 to the KPA. That should work just fine. > > Jack Brindle, W6FB > > Sent from my iPad > >> On May 2, 2014, at 8:08 AM, Don Wilhelm <[email protected]> wrote: >> >> I would suspect that there is some pin/wire in that KPA/KAT cable which is >> broken. When used for your purposes between the K3 and the KAT500, it is >> not used, but is used for the KAT500 to KPA500 connection. It may be wise >> to replace that cable at some point. I would at least put a tag on it as a >> reminder that it is "flakey". >> >> 73, >> Don W3FPR >> >>> On 5/2/2014 9:49 AM, Ben Collins-Sussman wrote: >>> OK, new test results, followed by an inexplicable resolution to the problem! >>> >>> I'm comparing the two elecraft-specific DB15 cables here, with the >>> suspicion that one of them is broken or defective. >>> >>> 1. *Physical observation* >>> >>> The K3/KPA cable has all pins present. >>> The KPA/KAT cable has pins 1, 6, 7 missing. But it looks deliberate, and >>> those pins are not used anyway (according to documentation.) >>> I do not see any bent pins on either cable. >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [email protected] > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
