Ron,
OK on the SMA connectors. I have seen several types. Some are similar
the the BNC chassis mount while others have a "nut" on the outside that
one can grasp with a wrench (and makes my suggestion of screwing on a
mating connector a moot point).
I do believe my points about using a male connector to provide something
for pliers to grasp as well as the star lockwasher placement are valid
points for the chassis mount BNC as well as for *some* SMA connector
applications.
I did not check the exact SMA connector for the K3/S EXT REF SMA
connector before responding, and it has been a while since I have
installed one.
My comments were general and apply only to those BNC and SMA connectors
that fasten directly to the chassis.
73,
Don W3FPR
On 4/2/2016 7:33 PM, Ron D'Eau Claire wrote:
Don, in this case the lock washer would jam into the opening for the
connector. If you look at the setup in the manual you'll see that panel hole
is oversized and the engineers put an o-ring on the connector that centers
it in the hole. The inside surface of the panel is masked to provide good
contact with a large flat washer that goes against the rear panel opening
and provides a good surface for the nut and lock washer that secures the
connector to bear against.
The connector has a hex cut on the inside ferrule. Tightening is done with a
wrench or pliers on the nut outside while holding the hex cut ferrule on the
inside to keep it from turning.
73, Ron AC7AC
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