[TowerTalk] Crimp on Coax connectors
Steve Maki
lists at oakcom.org
Sun Sep 8 21:46:22 EDT 2019
On 09/08/19 21:26 PM, Steve Maki wrote:
I meant brass style
> Older Heliax connectors - the bronze style (I'm talking old here) - had
> solder center pins. Nowadays they are of the captured center pin style,
> as are most LMR connectors like EZ400's and COMP-400's.
>
> For braided coax with a solid center conductor, I like connectors that
> have precision captured center pins, where the (beveled) center
> conductor squeezes in with force. After installation, it can slide back
> and forth a tiny bit in the pin if needed due to temperature extremes
> without breaking anything or moving the pin and losing contact with the
> mating connector. Which IS a thing. Maybe not with UHF connectors, but
> with N's, definitely. Not sure if there IS a PL-259 like that, if not,
> there should be.
>
> If the center conductor is stranded, there is no captured center pin
> connector available, for obvious reasons. Well if it's not obvious, it's
> because it would take a miracle to get all the strands inserted into a
> precision pin, and there would be no way to know for sure how successful
> you were.
>
> In that case take your pick, solder or crimp or both...
>
> -Steve K8LX
>
> On 09/08/19 18:56 PM, wc1m73 at gmail.com wrote:
>
>> One point on crimp vs solder center conductors: All the heliax I've ever
>> used relies on mechanical connections for the shield and center
>> conductor.
>> There's less flexing, but depending on the application (e.g., not a rotor
>> loop) I don't see why crimp isn't just as good as solder.
>>
>> 73, Dick WC1M
>
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