I have run across an old Heath HD-4040 TNC-1 with the WB6ECE KISS eprom in it. Is there a way to test it with a terminal program? I tried connecting it to UIView as KISS but didn't see any indication of activity. I know... it's really old, but if it works.... Steve Steve Look KA9SZW Monticello, IL Piatt Co. ARRL EC Ubiquitous Radio Club Trustee