At 1/11/2006 02:38 PM, you wrote:
>Everything depends on everything Bob. I've seen some
>poor quality N elbows that ruined an 800MHz trunking
>system (round body type). Replacing the round body
>elbows with the better made square body N-Elbow brought
>the trunking system rx pre-selector back to life.
Did the round body N elbows have a solid inner shielding ring on the male
side (as opposed to the split-finger style)? If so, these are actually
made for microwave use up to 18 GHz. They do work down to DC of course,
but the mating tolerances with the female side are more critical because
there is much less spring action with the solid ring. I found in some
cases that if the connector wasn't wrenched down tight, a deep resonance
showed up just below 1 GHz. Sounds like maybe that's what happened in your
case.
Bob NO6B
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