[Elecraft] Re: VK2ICQ: RE: BFO settings?

Mon Mar 17 17:30:01 2003

For those who would like to get Spectrogram, the freeware version is still available:

http://www.hitsquad.com/smm/programs/SPECTROGRAM/

This seems to have all the capability you need for aligning a K2.

73/ Bob - AG5Q

----- Original Message ----- 
From: "David Walker" <[email protected]>
To: "Gary" <[email protected]>
Cc: <[email protected]>
Sent: Monday, March 17, 2003 3:08 PM
Subject: [Elecraft] Re: VK2ICQ: RE: BFO settings?

> Hi Garry,
> 
> Thanks for the tip.... I've downloaded spectrogram before and its gone past
> it's demo period so it won't work for me.  However, I used JE3HHT's DSP
> filter because it shows the same thing as spectrogram - and it's FREE!
> 
> My filters for SSB were perfect but my CW filter's were very skewed.  I have
> them perfect now.
> 
> Thanks,
> 
> Dave.
> ----- Original Message -----
> From: "Gary" <[email protected]>
> To: "'David Walker'" <[email protected]>
> Cc: "CSinfo" <[email protected]>
> Sent: Tuesday, March 18, 2003 4:27 AM
> Subject: VK2ICQ: RE: BFO settings?
> 
> 
> > Hi David,
> >
> > Use the info on our website to do CAL FIL optimally:
> >
> > General info on Spectrogram, including how to download it:
> >
> > http://www.elecraft.com/Apps/new_fil_docs/filter_apps.htm
> >
> > The CW method to adjust CAL FIL:
> >
> > http://www.elecraft.com/Apps/new_fil_docs/k2_cw_gram.pdf
> >
> > The SSB method:
> >
> > http://www.elecraft.com/Apps/new_fil_docs/k2_ssb_gram.pdf
> >
> > The 2nd XFIL mod we recommend when the SSB adapter is installed:
> >
> > http://www.elecraft.com/Apps/new_fil_docs/k2_2nd_xfil_ssb_mod.pdf
> >
> > (not needed on sn. 3000 kits and above.)
> >
> >
> > CAL S LO and CAL S HI often need to be redone whenever CAL FIL is done
> > and the BFO is changed.
> >
> >
> > Narrower CW filters will have less fidelity than the wider fixed SSB
> > filter, if that is what you mean.
> >
> >
> > --
> > 73, Gary AB7MY
> > =========
> > [email protected]
> > Elecraft Technical Support
> > -----Original Message-----
> > From: David Walker [mailto:[email protected]]
> > Sent: Monday, March 17, 2003 1:00 AM
> > To: [email protected]
> > Subject: BFO settings?
> >
> >
> > Hi guys,
> >
> > I've have another query about setting up the filters and the BFO
> > settings.
> >
> > I have set my BFO frequencies and filter widths according to the builder
> > manual and everything is great.  However, on CW the tone is not as clear
> > as on USB or LSB.  It's kind of like listening to the rig with ears full
> > of water (if you know what I mean.)  But I can flip to CW-R and notice
> > almost no change in the CW signals tone - which is ideal right?
> >
> > The other thing I notice is that the S meter now shows S2 constantly -
> > whereas on USB and LSB the S meter is zero without an antenna connected.
> >
> > Why would this be?  Do I need to just adjust S_LO and S_Hi or have I got
> > wrong BFO values in my CW filter?
> >
> > Hope this makes sense, I barely know what I'm doing myself.  If you
> > think I should telephone and discuss this then let me know I'd be happy
> > to phone.
> >
> > 73's
> >
> > Dave
> > VK2ICQ
> > SN: 3222
> >
> >
> 
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be a list member to post to the list. 
> Postings must be plain text (no HTML or attachments). 
> See: http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com