Just out of curiosity has anybody on this list something to say about using a GPS receiver and a 1.5GHz Pentium near each other (e.g. within 1-3 meters) ? In view of the apalling RFI record of PCs I would expect some form of interference. Peter -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics