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Radio Stations Use Compressed Air ??? |
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Because of the High Power we send through the hollow copper 'Coaxial'Lines, we need to insure moisture will never seep into
them.
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If moisture DID get in, we'd have arcing, burning, and the copper pipes could melt in a matter of seconds. |
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We use a special air compressor for this; called a dehydrator, it takes normal air from the room, drys it out, and then pumps it into the hollow lines at low
pressure. |
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Each one of the hollow lines is fed through its own port on the output manifold. We usually keep between 3 and 6 pounds of pressure on each line.
This makes sure the inside of the line stays dry and free of any moisture.
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Line Pressure as read at the Studio
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Line Pressure as read at the Transmitter Site
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The amount of pressure is measured and sent back to the studio so we can keep an eye on it. Shortly after the new plant went on the air, a 'gas barrier' at the end of
one of the lines burst. We found this when the pressure suddenly read '0'..., rather than the expected 3-6 lbs. |
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Needless to say, no time was wasted repairing the problem. Even while the line was leaking, the dehydrator kept pumping dry air into the system,
keeping the moisture out. |
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