Comments in line. At 09:23 PM 9/22/2006, you wrote in part >Today, we don't have these limitations. We do need a standard, and >the standard is still to transmit the mark as the high frequency, and >the space as the low frequency. The shift for FSK is now 170 >Hz. Terminal units that used filter techniques, had filters set up >for 2125 and 2295 Hz for Mark and Space respectively. With these >standards it was still a requirement to receive on LSB. >Today most >sound card programs don't care what the mark and space frequencies >are for demodulation, as long as the shift is correct.
This is a problem for me as my ST-6 terminal unit does care what the mark and space frequencies is. Off be more then a few Hz and I can't copy. Same holds true for the 200 Hz shift TNC - can't copy them. Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
