Re: K3 / P3 - RS232 ???

[HP]

New K3 user -- it boots up in transmit if the RS232 attached laptop has not
been booted up first . And no amount of button pushing that I have found
will take it out of transmit. (other than power off - but back on and still
in transmit)

What do I have set wrong ???  This is a real RS232 not a USB-RS232 dongle.
All works fine if computer is booted up first - communicates with N1MM etc
etc


Hank K7HP

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[Cady, Fred]

Hi Hank,
That is a standard problem with RS232 ports when they have not been powered up before the K3. One solution is to go into your CW WGHT menu and tap the 4 key to select VOX AUTOOFF. This takes the K3 out of VOX mode when you turn the K3 off so when you turn it on again it can't be keyed, either by the internal keyer, the back panel KEY IN or the RTS/DTR signals (the culprits) in the RS232 interface. Then, after you power up the computer you can hold VOX to be able to send or transmit using VOX. The K3 will display VOX=OFF the first time you try to send without re-enabling VOX. I often program the power-on banner (using the K3 utility) to display VOX OFF.
Cheers and 73,
Fred
KE7X

Fred Cady
"The Elecraft K3: Design, Configuration and Operation 2nd Ed"
"The Elecraft KX3 - Going for the Summit"
www.ke7x.com
www.lulu.com (July 20% discount is JULYBOOKS13)
fcady at ieee dot org

> -----Original Message-----
> From: [hidden email] [mailto:elecraft-
> [hidden email]] On Behalf Of Pfizenmayer
> Sent: Thursday, July 11, 2013 3:07 PM
> To: [hidden email]
> Subject: Re: [Elecraft] K3 / P3 - RS232 ???
>
> New K3 user -- it boots up in transmit if the RS232 attached laptop has
> not
> been booted up first . And no amount of button pushing that I have
> found
> will take it out of transmit. (other than power off - but back on and
> still
> in transmit)
>
> What do I have set wrong ???  This is a real RS232 not a USB-RS232
> dongle.
> All works fine if computer is booted up first - communicates with N1MM
> etc
> etc
>
>
> Hank K7HP
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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[k6dgw]

On 7/11/2013 2:07 PM, Pfizenmayer wrote:
> New K3 user -- it boots up in transmit if the RS232 attached laptop has
> not been booted up first . And no amount of button pushing that I have
> found will take it out of transmit. (other than power off - but back on
> and still in transmit)
>
> What do I have set wrong ???  This is a real RS232 not a USB-RS232 dongle.
> All works fine if computer is booted up first - communicates with N1MM
> etc etc

RTS and DTR can be configured to assert PTT and key the K3.  It is
controlled by a menu entry CONFIG:RS-232, and there are several choices
including turning it off.  Turn them off in the menu and your problem
should go away.  I think you have to have CONFIG:TECH MD set to ON to
see the RS-232 menu entry.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org


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[Iain MacDonnell - N6ML-2]

On Thu, Jul 11, 2013 at 2:29 PM, Fred Jensen <[hidden email]> wrote:

> On 7/11/2013 2:07 PM, Pfizenmayer wrote:
>>
>> New K3 user -- it boots up in transmit if the RS232 attached laptop has
>> not been booted up first . And no amount of button pushing that I have
>> found will take it out of transmit. (other than power off - but back on
>> and still in transmit)
>>
>> What do I have set wrong ???  This is a real RS232 not a USB-RS232 dongle.
>> All works fine if computer is booted up first - communicates with N1MM
>> etc etc
>
>
> RTS and DTR can be configured to assert PTT and key the K3.  It is
> controlled by a menu entry CONFIG:RS-232, and there are several choices
> including turning it off.  Turn them off in the menu and your problem should
> go away.  I think you have to have CONFIG:TECH MD set to ON to see the
> RS-232 menu entry.

Actually it's "CONFIG:PTT-KEY", and TECH MD is not required.

73,

    ~iain / N6ML
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