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A
Caring for Connectors
Therefore the mechanical specifications of Type-N connectors give a maximum
protrusion of the female contact fingers in front of the outer conductor mating
plane and a minimum recession of the shoulder of the male contact pin behind the
outer conductor mating plane.
As Type-N connectors wear, the protrusion of the female contact fingers generally
increases, due to wear of the outer conductor mating plane inside the female
connector. This decreases the total center conductor contact separation and
should be monitored carefully.
75 Ω Type-N connectors
75 Ω Type-N connectors differ from 50 Ω Type-N connectors most significantly in
that the center conductor, male contact pin, and female contact hole are smaller.
Therefore, mating a male 50 Ω Type-N connector with a female 75 Ω Type-N
connector will destroy the female 75 Ω connector by spreading the female
contact fingers apart permanently or even breaking them.
If both 75 Ω and 50 Ω Type-N connectors are among those on the devices you
NOTE
are using, identify the 75 Ω Type-N connectors to be sure that they are never
mated with any 50 Ω Type-N connectors.
70
Keysight N4000/1/2A Operating and Service Manual
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