I have acquired an old Globe Electronics Model AT-3 Globe Matcher Jr. random wire antenna tuner. Does anyone have any info on this unit? What frequencies does it cover? ALL? Also, I hate to bring a plain wire directly into my house and on my shack desk. Can I use a coax or shielded wire to keep the signal out of the house and make the wire antenna feedpoint farther away? Thanks all! Tom Foster KD5TIE