Ongoing saga here. When keyed there is no plus voltage from pin 3 the TXD line. There is a minus 6 volts when unkeyed as there should be. Sorry I'm just lost. Ed W3NR --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.467 / Virus Database: 266 - Release Date: 4/1/2003