Symmetricom TimeSource 3600 User Manual page 45

To reduce multipath signal distortions, the minimum horizontal distance from vertical
reflective structures (e.g., heating ducts, equipment housings, etc.) is twice the
height of the structure, and no less than 3 meters (see Figure 2-3.).
Do not locate the antenna underneath high power lines. If this cannot be avoided,
ensure the antenna is placed at least twice as far from the power line as the power
line is high (to avoid danger to personnel and multipath effects).
Cables must be run as straight as possible. All cables should be routed in
accordance with local company practices.
Note: Keep all impedances as low as possible, otherwise the
grounding scheme may be defeated.
Observe the following guidelines during the placement and installation of the
cables:
Route cables as straight as possible (bends in the cable increase impedance at
lightning frequencies), in accordance with local company practices.
Any opening where conduit enters the building must be waterproofed per local
company practices.
Treat all exposed connections with an electrically conductive anti-corrosion
compound (Kopr-Shield or equivalent).
Caution: To prevent damage to cables, avoid small-radius turns and
unnecessary turns.
097-72060-01 Revision J – June, 2007
Chapter 2 Engineering & Ordering
Antenna Guidelines
TimeSource 3600 User's Guide 45