I bought an add-on serial card only to find that there is no TXD. Does anyone know of any add-on cards that do have a TXD line. I need it for FSK and rig control. Thanks Ed W3NR --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.580 / Virus Database: 367 - Release Date: 2/6/2004