MIRAGE BD-38-G Dual Band Amplifier
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INSTALLATION AND OPERATION:
The Mirage BD-38-G may be mounted using the bracket (not supplied) or simply
placed in a convenient operating position. In either case, there must be adequate
ventilation for the finned heat sink. This generally means at least 1 inch clearance
from the heat-sink to any surrounding enclosure and an unobstructed flow from the
front to the back of the heat sink. Do not operate the amplifier in places where it will
be exposed to direct sunlight or a nearby heat source such as heaters, radiator, etc.
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CAUTION:
With extended use, the heat sink becomes VERY HOT!
If it is necessary to extend the DC power leads, use wire of the same gauge in order
to avoid a voltage drop on your power leads. Be careful that the DC power supplied
is no higher than 15 Volts or damage may result. A source voltage of 13.8 Vdc and
16 amps is recommended and should be used whenever available. Some automobiles
will generate a high current surge when started. It is recommended that the amplifier
be placed in the
OFF
position when starting your vehicle.
Use a minimum length of good quality 50 Ohm cable between the radio and the
amplifier. The antenna system should have a VSWR of 1.5 : 1 or better for best
performance. If used in a mobile installation, choose a good mobile antenna which
will withstand the power of this amplifier. Be sure to check the SWR for any
degrading once the antenna has been heated by a few minutes of operation. An
antenna with a rating of 100 watts is recommended.
Never connect the "rubber duck" antenna supplied with your tranceiver directly to the
antenna connector of the amplifier unit by use of a SO-239 to BNC converting unit,
or by any other means; It may cause damage to both the amplifier and the "rubber
duck."
When utilizing a mono band antenna, check the transmitting frequency of your radio
and be sure that it is matched to the type of antenna you are using prior to operation.
Furthermore, when inserting coaxial switches to either or both input or output of the
power amplifier in order to operate two sets of tranceivers and antennas of which the
frequencies differ, be sure to carefully check switch positions.
