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Old 10-16-2012, 04:01 PM   #122
freemind
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Kerfed or squared?

Squared(sharp right angles)tend to make some noise at higher power levels. That makes for port noise that hurts SQ.

Kerfed is a slow rounded edge that helps eliminate port noise period. This is a much better port design period.

Round ports are not worth the trouble IMO.
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