Ooops - I knew I would get dyslexic - it's LSB, so the necessary shift to a lower TX frequency requires a corresponding shift higher in the audio applied - so you want to center at 1000+(170/2) or 1085Hz.
sorry! - jeff wk6i At 11:30 AM 10/9/2005, Jeff Stai wrote: >You want to set it to the center of the two tones you are using for AFSK. If >1000Hz is your Mark frequency, and 170Hz is your shift, then you should center >at 1000-(170/2) or 915Hz. > >You can do this graphically with Spectrogram using the techniques detailed on >the Elecraft Builders Resources pages. Set the cursors based on the AFSK tones >from your RTTY modulator software or hardware. Then center the filter peak >between the two cursors. > >hope this helps! - jeff wk6i > > >At 10:43 AM 10/9/2005, Charlie, W0YG wrote: >>Since the ability to set filters when using the RTTY mode is different than >>LSB/USB if used for AFSK, what center frequency do you use? Perhaps I should >>rephrase this. When setting filters in the RTTY mode (the K2 defaults to the >>SSB filters when in RTTY mode unless RTTY filters are set) do you use 1000 Hz >>as the center frequency? -- Jeff Stai [EMAIL PROTECTED] Twisted Oak Winery http://www.twistedoak.com/ Rocketry Org. of CA http://www.rocstock.org/ Amateur Radio WK6I ~ Calaveras County, CA _______________________________________________ Elecraft mailing list Post to: [email protected] 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
