[Elecraft] FSK problem with my K3

[wayne burdick]

I've already completed the FSK POL menu entry, too, in case that is  
needed. I've sent it to a few testers.

73,
Wayne
N6KR

On Jan 28, 2009, at 7:01 PM, Don Wilhelm wrote:

> Jerry,
>
> I just looked at the fldigi files on the web, and it appears that  
> fldigi
> does not do FSK, but all its RTTY operation is in AFSK.  If that is the
> case, you will need to connect the soundcard to the line in and line  
> out
> connectors on the K3 rather than connecting to the ACC connector pin 1.
> See http://www.w1hkj.com/FldigiHelp/RTTYFSK.html for the source of my
> information it states that "All of the modem signals that fldigi
> produces are audio signals."
>
> If you have implemented the circuit shown in
> http://www.w1hkj.com/FldigiHelp/PseudoFSK.html to produce Pseudo FSK,  
> it
> does state that you may have to invert the sense of the keying signal.
> A second 2N2222 stage like the one shown should accomplish the  
> inversion.
>
> 73,
> Don W3FPR
>
> n2uz wrote:
>> Hi all,
>>
>> First of all, I prefer to use FSK instead of AFSK.  ASFK works fine.
>>
>> My problem is that I have the wrong polarity coming out of my rtty
>> program (fldigi under linux). It is hooked up to pin 1 of the ACC 15  
>> pin
>> connector. It is changing polarity fine (looking at it with my oscope.
>> How can I invert it in the K3?  I tried the CONFIG param FSK POL  and
>> that does not do it.  I read an email on the archives saying that the
>> config item FSK POL  does not work.  If that is the case, when will it
>> be fixed?
>> I have the latest code 2.78.
>>
>> On the air I get no print from other hams.  As a test I use my K2 with
>> another pc to check and ASFK is fine by garbage with FSK.
>>
>>
>> Jerry, N2UZ
>>
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