[Elecraft] K3 RS232 Query

[Dick Dievendorff]

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:jdpetters at btinternet.com] 
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