Symmetricom TimeSource 3600 User Manual page 61

Procedure 3-1. Mounting a Roof Antenna and Connecting the Cable (Continued)
Step
2. Mount the antenna and mast assembly to the "L" bracket
Connect the mast to the flange using PVC glue.
Feed the cable through the bottom of the mast as illustrated.
Connect the cable to the antenna "pigtail" and pull the cable back through the mast.
Mount the antenna to the mast using the supplied shims.
Mount the antenna and mast assembly to the "L" bracket using the supplied nuts, bolts,
and washers.
3. Using a plumb line or bubble level, ensure the antenna is within 5° of vertical (perpendicular
to the horizon), and tighten the mounting bracket bolts.
4. Bolt the lightning suppressor mounting plate to a flange that is attached to a valid earth
ground. The roof ring ground system, a Central Office grounding plate, and building
structural steel are examples of valid earth ground points. If the mounting plate cannot be
bolted to a valid earth ground, bolt the mounting plate to a point within 4.6 m of the chosen
valid earth ground. If the mounting plate is to be installed in a nonmetallic junction box,
perform the installation, and bolt the assembly near the chosen valid earth ground.
097-72060-01 Revision J – June, 2007
Chapter 3 Installing the TimeSource 3600
Procedure
TimeSource 3600 User's Guide
Installing the Antenna
61