I will add that I only need the DB9 hookup. Microham RS232 to P3 (PC)? Then P3 (TXVR) to K3 RS232 ? I have looked at app notes and past listings and cannot for the life of me get my stuff hooked back up correctly. A bit of guidance would be appreciated. Thank you -- Randy Lake N1KWF 73 Gunn Rd. Keene,NH