zBoost
®
TRIO Pro ZBC775 Manual
4
IMPORTANT: Before Installing, Note These Important Factors in Determining
Performance
1. At least 15
vertical feet is needed between the External Antenna (receives the outside signal)
and the Indoor Antenna (rebroadcasts the signal indoors). Separation less than 15 vertical feet
will result in decreased performance.
If the antennas are too close together, a solid ORANGE light will appear on the Base Unit -
see the Base Unit Light Indicators section (page 10). To capture the best signal, place the
External Antenna as high as possible.
2. Position the External Antenna vertically and keep it at least 3 feet
above any metal.
Grounding the External Antenna
If the External Antenna is placed outdoors, it must be properly grounded. (See page v for a
recommended grounding kit).
The setup must be in accordance with Article 810 of the National Electric Code (NEC). A listed
antenna discharge unit must be provided for the lead-in coaxial cable per NEC article 8.10.20 or the
shield of the coaxial cable must be permanently and effectively grounded in accordance with NEC
article 8.10.21. Please consult a professional installer or electrician for more information
15 ft. of vertical
separation
15 ft. of vertical
separation
15 ft. of vertical
separation
Cell Tower
