K2 #5601 Speaker Wiring

[Bernard Gaffney, N8PVZ/QRP]

Well, I managed to open up the box, check out the
speaker wiring (all OK!) and close it up again, all
with out ripping out any wires (I hope! ;~)) )

Next stop is to do more on air AF level testing;i.e.,
find some decent signals, and see how audio responds.

Then on to setting the RTTY filters, initially the
same as the SSB filters. Eventually, using Spectogram.
Have to see about getting an N-Gen, appears to me
that's the most accurate way. Doesn't appear to be too
difficult a build.

Thanks to all who replied on/off group to my questions
on audio.

  72 de N8PVZ
    ---bernie




Yabba Dabba Doo!

      ---Fred Flinstone



 
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[Don Wilhelm-3]

Bernie,

I would suggest that you go with Spectrogram now - for all the filters.  It
is harder to explain than to do it.  See the information at my website
http://w3fpr.qrpradio.com - the CAL FIL info is inside part 3 of the article
on K2 dial calibration.

The noise generator will not provide more accuracy than noise from a 'dead
band'.  In these days of low sunspot activity, you should easily find a band
that is a bit noisy and contains no discrete signals.  Yes, the NGEN is
convenient, but it should not be any stopping block for you to get your K2
filters aligned - even the internal receiver noise (turn the preamp on) will
give you an adequate amplitude of the receiver passband to align the
filters.

You really should align the filters before attempting any qualitative
evaluations of the received signal quality - the filter alignment is
critical to what you hear.

73,
Don W3FPR

> -----Original Message-----
>
> Well, I managed to open up the box, check out the
> speaker wiring (all OK!) and close it up again, all
> with out ripping out any wires (I hope! ;~)) )
>
> Next stop is to do more on air AF level testing;i.e.,
> find some decent signals, and see how audio responds.
>
> Then on to setting the RTTY filters, initially the
> same as the SSB filters. Eventually, using Spectogram.
> Have to see about getting an N-Gen, appears to me
> that's the most accurate way. Doesn't appear to be too
> difficult a build.
>
> Thanks to all who replied on/off group to my questions
> on audio.
>
>   72 de N8PVZ
>     ---bernie
>
>
>
>
> Yabba Dabba Doo!
>
>       ---Fred Flinstone
>
>
>
>
> __________________________________________________________________
> __________________
> Need Mail bonding?
> Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers users.
> http://answers.yahoo.com/dir/?link=list&sid=396546091
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
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