Antenna Location:
ANTENNA LOCATION IS THE MOST CRITICAL PART OF THE
INSTALLATION!
DO:
- Choose an antenna location that maintains line-of-sight between the
antenna and transmitter, as close to the area where the Transmitter will
be used as is practical.
- Try to mount the antenna at least six to ten feet above floor level, in a
vertical orientation.
- Position the antenna in a horizontal orientation if it will be mounted
directly above the area where the Transmitter will be used.
- Choose an antenna location that allows a short (less than 100')
feedline cable run. It is better to run a long, balanced audio cable rather
than a long antenna feedline cable.
- Try different antenna locations if you cannot achieve satisfactory
operation.
DO NOT:
- Mount the antenna on a steel beam or behind a wall that could shield
the antenna. Metal plaster lath, metal studs, foil-backed insulation,
metal ducts, and metal reinforcing bars in concrete walls can all act to
shield radio signals. Wood, glass, fabric, and masonry are generally
transparent to radio signals. People can also block radio signals.
- Mount the antenna at the rear of an auditorium if the Transmitter will
generally be used in the front.
- Position the antenna in a vertical orientation directly above the area
where the transmitter will be used; the antenna is essentially "dead" off
both ends.
- Coil up excess antenna feedline cable. This can act as an inductor and
de-tune the antenna. Cut the cable to length and install a new "F"
connector.
The Antenna Feedline Cable:
The Coaxial Feedline Cable may be extended up to 100 feet if
necessary, with a slight loss in system range. Fifty-foot extension cables
are available from Williams Sound (Part Number WCA 008 50). If you
supply your own extension cable, use RG59 coax with at least 90%
shielding and "F"-type connectors. Do not splice coax cable.
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