Hi Peter & the list, That was my initial first guess too. I looked at the numbers in the molded plastic (since it is accurate on both sides) and then tested them with a DVM to make sure that they matched at all four ends (K2, 144, 222, 432) and they do. I need to go run a couple of errands this afternoon. Just for grins I will stop at RShack and see if they have a couple of DP9's on the shelf. If so I will likely make up a quick cable that I can use for direct K2 to one transverter for bench testing. (I am crossing my fingers that it is something simple like that.)
FYI... I just went back to the work bench, swapped the JP7 & JP8 jumpers and then disabled the DIP that controls the resistor network for the TRN address, power cycled them and all three transverters respond as expected. Of course I would prefer to use them with the K2 for auto switching so I will need to figure this out. Please keep sending me your ideas. I will see if I can get the parts to make a test cable this afternoon. (50 miles round trip for 2 DB9... becomes an expensive part.) 73 -- John Hoaglun NG0R - EN25 http://www.hoaglun.com On Sun, 2010-08-15 at 11:48 -0500, Peter Wollan wrote: > My K2 - XV50 setup did this -- the transverter didn't respond to the > K2 commands in any way, but powered up independently. In my case, it > was that I had soldered up the cable with one DB9 connector > mirror-imaged, so no surprise it didn't work. > > DB9 pin numbers are printed in the plastic, inside the back of the > male and on the front of the female. The diagram in the manual is > only labeled with pin numbers in one place -- each color wire goes to > the same pin number on the next connector. > > If it's something else, I can't help. > > Peter W0LLN > > On Sun, Aug 15, 2010 at 11:08 AM, John Hoaglun <[email protected]> wrote: > > I am in need of a little bit of guidance for where to start looking..... > > > (...) > > > (...) > > I have built the custom serial cable snake and it tests out fine with > > the DVM on pins 1,6,8,9. > > > > When I change the jumpers on the transverters to the K2 specs and hookup > > the serial cable and then select either the 144 or 222 transverter > > nothing occurs. I am expecting that the front panel light of the > > transverter should be activated when that band is selected via the band > > up/down buttons on the K2 when appropriate. > > > > What am I am missing? It is like the K2 is not selecting the > > transverters via the serial 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
