Custom modifications for the Telrex TB6EM antenna

The TB6EM has a 3.5 inch sleeve over the 3inch boom at the mast mounting position.   This antenna  requires a larger u-bolt than we normally provide and some addition machine work for the u-bolt.  The u-bolts and machine work are provided at no extra charge.   With the larger u-bolt size the Monster model TiltPlate is needed to provide some extra clearance.