I've wondered about this, too. Yet, I have another connector that has
been fine all this time, used on the same length of coax and has not
yet given me any trouble. If it fails in the same way, I'll be more
convinced of the fatigue hypothesis.
In an N-connector, isn't the center pin free to float around a bit?
It's been a while since I dealt with them. Which types are the more
reliable in this regard? Is Amphenol the magic word?
Kim Elmore N5OP
At 05:42 PM 12/22/2008, Michael Tope wrote:
>Kim, I am wondering if this might be a fatigue failure of the solder.
>With 9913, the center
>conductor can move axially during diurnal thermal cycles since it is not
>captured tightly by
>the helical insulating chord that suspends it inside the shield. Perhaps
>the diurnal push-pull
>force between the center conductor and the inside surface of the PL-259
>center pin could
>over time cause the solder to fatigue and crack. I know I have seen
>cheap N-connectors
>fail that were installed on 9913 when the center conductor migration
>caused the
>uncaptivated connector center pin to retract from the mating plane of
>female connector
>(the center pins are captivated on the better connectors).
>
>73, Mike W4EF..............
>
>
>
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