We have an application that involves over 1000 N type connectors
exposed to the elements and from time to time tests indicate that the
phase or attenuation values are outside limits.

Often an investigation reveals that the inner copper conductor has
tarnished/turned black/blue and a clean with some fine sandpaper and a
re tighten returns the connector to a serviceable state.

However, for some of these connectors we find a short time later that
they have once again tarnished and thus we suspect that there must be
moisture in the cable and it is a constant battle repairing these.

Recently someone suggested we use Conductive Silver Grease on the
conductor inner.

I have concerns that perhaps silver may react with the copper, or that
as these connectors withstand extremes in temperature and this may
cause the silver grease to slowly weep and find a way that results in
the dielectric becoming contaminated over time.

The length of these cables are important so if the end was to be
contaminated cutting the cable would present a serious issue.

Anyone had experience using conductive silver grease for this type of
application.

The cable is LDF450 and the connectors are RFS-H15566001 and
temperature ranges from 0 - 50 deg.

The technical data indicates that it is good for this range but mainly
concerned that over time the grease will move especially as the
connectors are unfavorably oriented and exposed to the elements.

Cheers Justin
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