[Elecraft] FW: P3 and K3 RS-232 baud rates

[Dick Dievendorff]

The K3 operates at 38400 if a P3 is inline. The PC sees the P3's speed, which can be 4800 thru 38400. Your PC software that requires any particular speed is therefore supported. The P3 to K3 link is a high speed one for low latency. 

Dick, K6KR


Sent from my iPhone

On Sep 14, 2010, at 5:07 PM, "Tommy Alderman" <aldermant at windstream.net> wrote:

> On page 13 of the P3 Owner's Manual, in the section 'RS232 XCVR', the last
> sentence states: "The K3 baud rate is set automatically by the P3 and cannot
> be changed at the K3" Based on that, is it correct that if I set the P3 baud
> rate to 4800 b, then the K3 will be operating at 4800 b even though
> CONFIG:RS232 reads 38400b?
> 
> Thanks,
> 
> Tom - W4BQF
> 
> 
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Tommy Alderman
> Sent: Tuesday, September 14, 2010 6:12 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] P3 and K3 RS-232 baud rates
> 
> P3:    s/n 464        Firmware 00.32      Rcvd 9/14/10
> K3:    s/n 4521    Firmware 4.10        Rcvd 8/2/10
> I have an old logging program that I do not want to lose or have to change.
> My first problem, because this program is so old (YPlog) was solved by
> selecting a Kenwood TS570D as the xcvr and setting the baud rate at 4800/1
> stop bit. That works fine.
> 
> Today, W4TV published an email explaining how to reset the P3 baud rate from
> its default of 38,400 back to 4800. That works. Unfortunately CONFIG:RS232,
> when I change the baud rate from 38400 to 4800 and press MENU/CONFIG again,
> the baud rate change is not saved in the K3 and I can no longer connect to
> my logging program. The only work-around I have found so far is to turn off
> the P3, set the K3 CONFIG:RS232 from 38400 to 4800, then press MENU/CONFIG,
> then turn the P3 ON again, and all works correct.
> 
> Will there be a firmware update that will allow the P3 and the K3 to be set
> at baud rates other than 38400 when BOTH the K3 and the P3 are turned on?  I
> certainly hope so because this YPlog is the only logging program I have
> found in some 20 years that will allow me to send CW at speeds over 60 wpm
> without the CW stuttering due to I/O interrupts from a CPU.
> 
> Thanks and 73,
> 
> Tom - W4BQF
> 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html