Andrew/CommScope transmission lines hold up very well outdoors but LDF4 does not work well with rotating antennas. I use RG-213 for coax loops. John KK9A Rob Atkinson K5UJ . I'd replace the Times Microwave feedline with LDF4-50 or whatever RFS calls the original Andrew line. 1/2 inch foam dielectric line. 73 Rob K5UJ