2 wrote:
>>
>>2 Wrote:
>>
>>>Type-C connectors have more current carrying ability and more voltage
>>>withstanding ability than Type-N. Type-C are moisture proof, and bayonet
>>>mount.
>>>
>>While that is true, they suffer from the same problem as BNC, in that
>>the bayonet locking force comes from compressing a rubber gasket, which
>>eventually softens and loosens the connector.
>
>// Silicone rubber is virtually non compressive.
>
I used to use several C connectors which had come from testgear at a
local research facility. After several years of sitting in a rack, the
gaskets had compressed and you could spin the plugs quite freely in the
sockets... exactly like an old BNC.
The problem with all bayonet-type mechanisms is that they cannot apply
maximum compression to the spring or gasket when locked - if they did,
you wouldn't be able to operate the twist-lock.
>>A better solution might
>>have been type SC ("Screw C") or LC but these always seem to have been
>>scarce.
>>
>// Screws can loosen.
But you have control over that, unlike the ageing of a gasket.
73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.com/g3sek
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