I think it is a matter of signal cleanliness....use the lowest power that allows the communication, with a clean signal.
In PSK, as well as in SSB voice, and many digital modes with an envelope (I am not referring to constant envelope modes as RTTY) a clean signal is a must to conserve bandwidth. It is not a matter of power only. If you must make the contact, switch on your amplifier and run it at LOW POWER, that is, low enough to have a powerful but CLEAN signal with low IMD. Nevertheless, the audio from your TNC or soundcard shall never overload your transceiver input. Linearity shall be mantained from the signal source up to the antenna, no matter if you run milliwatts or full legal power. Happy QSOs, 73 de Jose, CO2JA __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/ More info at http:///www.obriensweb.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> 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/