Hi, Serial communications is thinked for two buddies with crossed tx and rx., not for three. You have too many tx on the same cable. Remove the tx from the db15 of expert you don't need it. For the expert is enough READ (rx) the frequency that set the CAT coming from the PC (TX). Remove the tx from the expert db 15 and try again. I have similar setup but with k3s instead of kx3. There are cable schemas on my site, if you want give a look.
Good luck, 73 de IW2NOY http://www.iw2noy.it/index.php?id=87 Inviato da BlueMail Il giorno 1 mar 2018 09:53, alle ore 09:53, Andre Bourbon <andre.bour...@on7yk.eu> ha scritto: >My setup is : KX3 --- PC ----Expert Ampli 1K-fa or 1.3k-fa > > > >Using the ACC1 port : > > > >Kx3 Connect to my pc with KXUSB cable and DX-lab logging prg --------- >band >changing is ok > >KX3 connect with my Expert ampli DB15 ( txd,rxd,gnd ) ( flex radio cat >settings ) -band changing is ok > > > >I will do it now together : > >I put 1 cable wired on parallel : txd, rxd, gnd > > 1 cable goes from the KX3 to the expert ampli > > 1 cable goes from the KX3 via KX3USB to the pc > > > >----band changing totally NOT working any more . > >Its look like there is a conflict or the voltage from the kx3 is to low >to >change the band info to the pc and on the same time to the cat port >(Expert >ampli.) > >Any advice, or solution ??? > >André ON7YK > > > > > > > > > > > >--- >Deze e-mail is gecontroleerd op virussen door AVG. >http://www.avg.com >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to grazi...@roccon.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
