Hello Bob, I have used the published velocity factors for years. I made a 4:1 balan for my Telrex 20M546 a few years ago with RG14 coax. After I cut it, I checked it
with my GDO and all was fine. 73 Price W0RI Hi it's still flooded here but I wanted to fire up one of my verticals by itself on 160 and feed it with a half wave of Comscope RG6 since I don't have enough 50 ohm line to reach it. I have a AIM 4170 to cut the line with but my question to the group is - how much variation from published nominal velocity factors have you encountered in practice when cutting lines to length? How accurate do we need to be for 1/4 wave lines? 73 Bob _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK