No, it's just the three pins, RxD on 2, RxD on 3, and signal ground on 5. If you can read IF unsolicited data from the K3 but it does not respond to commands, perhaps TxD is not wiggling? If the K3 configuration menu is set to AUTOINF = AUTO 1 then the K3 will send an IF packet on VFO A change without requiring a command.
Can the K3 Utility connect to the K3 with your cable? http://www.db9-pinout.com/ Could you borrow a straight-thru 9-pin serial cable to help isolate the problem? 73 de Dick, K6KR -----Original Message----- From: John Petters [mailto:[email protected]] Sent: Monday, October 15, 2012 2:06 PM To: Dick Dievendorff Cc: john petters; Elecraft Subject: Re: [Elecraft] K3 RS232 Query Hi Dick, Just connected the USB adaptor to the serial lead on com 8, where it is, and opened Winlog32 OK with full control. Disconnected USB and plugged the serial lead into Com 1 and re-set the programme to Com 1 and it will display the the frequency as I spin the VFO, but I cannot control the K3 with the computer. I'm using the three wires as specified in the manual. Pins 2, 3 & 5. Do I need to connect the other two pins? Haven't got any other serial devices I can try, but no reason to believe the Com ports should be faulty. 73 John On 14/10/2012 22:34, Dick Dievendorff wrote: > Can another program find the K3 using your lead. serial port speed issue? Do Com1 and 2 work with any other devices? Are the com ports OK in the Windows device manager? > > Dick, K6KR -- John Petters www.traditional-jazz.com Amateur Radio Station G3YPZ ______________________________________________________________ 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
