Info about CW bandwidth has been in the ARRL Handbook for many years; and it does say bandwidth is proportional to speed. Just refer to the handbook if anyone disagrees with you on this one DR. Randy Goff KD8G --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.752 / Virus Database: 503 - Release Date: 9/3/2004