22
Important Notes on Operation
• Avoid installing the units:
- near a window or metal paneling
- immediately adjacent to electrical equipment, which may produce RF interference
- where they are vulnerable to physical damage.
• Keep the coaxial cables as short as possible and keep the same lengths.
• See the table below for the relationship between gain setting and approximate length of the
coaxial cable. Note, however, that excessive or low gain may result depending on the
conditions of use. Be sure to set the gain after checking the operation of the antenna.
Guide for coaxial cable length (for RG-212/U cable)
• Operating frequencies: 600-MHz band
• Operating frequencies: 800-MHz band
On Using the Antenna
• This unit must be used within a
temperature range of 0 °C to 50 °C
(32 °F to 122 °F).
• Operating this unit near electrical
equipment (motors, transformers, or
dimmers) may cause it to be affected by
electromagnetic induction. Keep this unit
as far from such equipment as possible.
• The presence of the lighting equipment
may produce electrical interference over
the entire frequency range. Position this
unit so that interference is minimized.
• To avoid degradation of the signal-to-
noise ratio, do not use this unit in noisy
places or in locations subject to vibration,
such as the following:
- near electrical equipment, such as
motors, transformers or dimmers
Distance between the transmitters and the receiving
antennas
Approximately 30 meters
(100 feet)
Approximately 60 meters
(200 feet)
Gain setting of
the booster
0 dB
0 to 12 meters (0 to 36 feet) 0 to 6 meters (0 to 18 feet)
10 dB
12 to 90 meters
(36 to 270 feet)
6 to 60 meters
(18 to 180 feet)
18 dB
90 to 180 meters
(270 to 540 feet)
60 to 120 meters
(180 to 360 feet)
Distance between the transmitters and the receiving
antennas
Approximately 30 meters
(100 feet)
Approximately 60 meters
(200 feet)
Gain setting of
the booster
0 dB
0 to 10 meters (0 to 30 feet) 0 to 5 meters (0 to 15 feet)
10 dB
10 to 75 meters
(30 to 225 feet)
5 to 50 meters
(15 to 150 feet)
18 dB
75 to 150 meters
(225 to 450 feet)
50 to 100 meters
(150 to 300 feet)
