[TowerTalk] How lossy are PL-259s at HF?

Jim Brown jim at audiosystemsgroup.com
Tue Jun 18 14:19:00 EDT 2024


On 6/18/2024 8:05 AM, Joe Subich, W4TV wrote:
> Unfortunately, I do not see dimension specifications for the
> contacts ... only the body, threads and *internal* dimension
> of the pin.
> 
> Wikipedia <https://en.wikipedia.org/wiki/UHF_connector>
> gives the center pin of the PL-259 as "approximately 0.156
> inch (4mm) diameter".

The definitions for many (most?) connectors are part of IEC Standards. 
That usually means that they are quite well defined by competent 
engineers. Unfortunately, IEC Standards also cross-reference each other, 
and are so expensive that only mfrs can afford to buy them, and you 
can't read them if you haven't paid up.

Anyone can buy an AES Standard from the AES website, last I looked, for 
$10, free for AES Members.

73, Jim K9YC



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