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Cautions
1. Power Supply:
(1) This amplifier is designed to work from 13.8VDC power supply.
Never connect to an AC line such as 115/120/220/240 VAC.
Such inadvertent connection will kill the amplifier.
(2) Higher supply voltage above 14VDC will lead to damage of the amp.
Keep the power supply at the designed voltage of 13.8VDC.
(3) High current will run with the amplifier at the time of transmission.
Use a stabilized DC power supply with a sufficient current capacity having a
good regulation.
If the regulation of the power supply is poor, the designed maximum output
power will not be achieved.
When extending the power supply cable, try to use cables thicker than 8
square millimeters in the shortest possible length.
The use of thinner cables will result in a voltage drop.
2. Antenna:
(1) Use an antenna that can withstand a continuous 300W transmission.
The use of a lower-power designed antenna can be heated, deteriorating
the SWR as the time passes.
In that case, the WARNING circuit will trip and/or the amplifier may be
damaged.
(2) This model is a high-gain/high-power linear amplifier.
If the antenna is located near the amplifier, RF intrusion will likely occur,
causing troubles due to unexpected oscillation.
Try to locate the antenna far away (as much as possible) from the amplifier.
3. Installation:
(1) Avoid setting the amplifier near the room heater or in the direct sun ray.
(2) Do not block the air vent at the top cover.
Several inches of clearance are needed for the rear panel and wall.
The forced air-cooling fan intakes air from the top cover, and exhausts from
the rear panel.
If the air intake port and/or exhaust port of the amplifier is/are blocked, the
cooling effect inside will deteriorate, causing the inside temperature to be
abnormally high.
Such abnormally high temperature can bring troubles to the amplifier.
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