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15P 15-ampere 120-volt plugs. The round center pin is the safety ground. Do not
remove the safety ground.
CAUTION! Before connecting the power supply to an electrical outlet, always be sure
you have completed the following four steps:
1. Insert the 15-ampere 250V fuses into the two black fuse caps.
2. Insert the fuse and cap assemblies into the power supply’s fuse holders.
The fuses lock in place with a push and slight turn.
3. Connect the power supply to the amplifier.
4. Be sure the amplifier power switch is off.
Caution! Fuses have both voltage and current ratings. Use only 250V rated
fuses in this device. The voltage rating is generally marked on fuses. DO NOT use
automotive-type low voltage fuses in any power line application. See power
supply instructions.
Warning: Never insert the power supply cord into the outlet until you have
completed steps 1 through 4 above!
Position the amplifier at or near the desired location on your operating desk so you have
access to the rear panel, and connect the rear panel cables. Do not connect the
power mains at this time!
Station Ground
Common rumor is a station equipment ground reduces RFI (radio frequency
interference), reduces lightning damage, or improves signal levels. Generally, changes
in RFI or signal quality, with the addition or removal of a station ground, indicate an
antenna or feed line installation problem. Typical problems causing desktop RF
problems include the following:
ɀ Lack of suitable baluns.
ɀ Improper feed line routing near antennas, or improperly designed antennas.
ɀ Antennas too close to the operating position.
ɀ Poor equipment cabinet design, such as non-bonded or grounded equipment
covers or panels.
ɀ Poorly designed low-level audio line shield entrances, such as shields allowed to
enter cabinets instead of grounding at the enclosure entrance.
ɀ Improper antenna feed line building entrance, lacking a properly grounded
entrance panel.
ɀ Rather than patching a system problem at the desk, it is much better to correct
the actual problem source.
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