Hey folks... Some of you may have read my other post regarding a TNC-X for winlink and digipeating. It is back at the developer for ROM revisions due to code problems with digipeating for Winlink. In the meantime I dug up a clean PK232MBX from a friend that I would like to set up for RMS Express and possibly as a stand alone digipeater. Not looking to use it on HF - just VHF. I know there are upgrades available, but according to the manufacturer, I should be good with what I have if I can get it to key the radio. I can do terminal to terminal keyboarding over the air with another ham. I have it hooked up to my PC and VHF radio and it checks out ok - I can make the radio transmit. I've selected the PK232 TNC in RMS Express but it won't start a session. The modem initializes fine, but upon starting a session it says the COM port is unavailable. Knowing almost nothing about the PK232's setup, I'm guessing I have to put the TNC into the proper mode before I can use it - just not sure what that is So far searches have revealed little help here and elsewhere for the VHF side of things.