
30
TimeSource 3000
Engineering and Ordering
097-72000-02 Issue 6: October 2003
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The minimum horizontal distance from vertical reflective structures (e.g., heating
ducts, equipment housings, etc.) is twice the height of the structure or 10 feet
(Figure 6).
Figure 6 Sample Rooftop Antenna Mount
•
The minimum vertical distance above parapets, obstructions, or horizontal metallic
reflective surfaces is 4 feet.
•
Do not locate the antenna within 30 degrees azimuth of the transmission direction of
any transmitting antenna (to avoid overpowering the GPS reception, even though
the transmitting antenna may operate at a different frequency).
•
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).
•
Mount the antenna in a location with easy and safe access for future maintenance
purposes.
•
Mount the antenna on a mast of 1 inch diameter galvanized metal pipe
(recommended). Do not use metal as a cable conduit.
Содержание TimeSource 3000
Страница 1: ...TimeSource 3000 GPS Primary Reference Source 097 72000 02 Issue 6 October 2003 ...
Страница 47: ...3 Chapter Installation This chapter provides the steps required for installation and power up ...
Страница 107: ...Chapter 4 TL1 Reference This chapter provides information for using the TL1 language ...
Страница 203: ...Chapter 6 Specifications This chapter provides equipment specifications ...