k144xv question

[W8ZN]

Hi all,

I've read through the new manual, but I don't see any reference to any type of control cable from the K3 to the transverter for PTT or LO selection. Anyone know if these signals are sent on the IF coax leads or did I miss something? I don't see a schematic for the KXV3A or the K144XV anywhere which would also answer the question.

Thanks,

Terry
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[wayne burdick]

The main K3 MCU controls the XV144 via DC signalling on the IF coax  
cables. Details later. The manual will be posted shortly.

Wayne
N6KR

----
http://www.elecraft.com

On Dec 22, 2009, at 10:44 AM, [hidden email] wrote:

> Hi all,
>
> I've read through the new manual, but I don't see any reference to  
> any type of control cable from the K3 to the transverter for PTT or  
> LO selection. Anyone know if these signals are sent on the IF coax  
> leads or did I miss something? I don't see a schematic for the KXV3A  
> or the K144XV anywhere which would also answer the question.
>
> Thanks,
>
> Terry
> ______________________________________________________________
> 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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[AD6XY]

Very interesting. Hopefully details on how to drive microwave gear to follow too.

I am wondering what to do with the unneeded second crystal.  There is no need at all for 146-148 over here.

[David Pratt]

That raises the question as to how 146-148MHz will transmit inhibited as
would be a licensing requirement in some IARU Regions 1 & 3.  Presumably
this will be possible via the CONFIG menu?

In a recent message, AD6XY <[hidden email]> wrote ...
>
>I am wondering what to do with the unneeded second crystal.  There is no
>need at all for 146-148 over here.

--
David G4DMP
Leeds, England, UK
------



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[wayne burdick]

Yes, we can do this in firmware. On my list.

73,
Wayne
N6KR


On Dec 23, 2009, at 12:07 AM, David Pratt wrote:

> That raises the question as to how 146-148MHz will transmit  
> inhibited as
> would be a licensing requirement in some IARU Regions 1 & 3.  
> Presumably
> this will be possible via the CONFIG menu?
>
> In a recent message, AD6XY <[hidden email]> wrote ...
>>
>> I am wondering what to do with the unneeded second crystal.  There  
>> is no
>> need at all for 146-148 over here.
>
> --
> David G4DMP
> Leeds, England, UK
> ------
>
>
>
> ______________________________________________________________
> 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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[VK4DD]

146 to 148 is perfect for transverter usage.
Even if you don't use that section of the band.