Thanks Jeff. I think your answer summarized the issue I am having. I'm
beginning to wonder if the prior batches of connectors that "worked" may have
been slightly over sized or perhaps as you mention the centre conductor strands
are un ravelling some what when I strip the cable.
All the best
Mark S
VE7AFZ
Sent from my iPhone
On Jun 7, 2016, at 12:11 PM, Jeff DePolo <jd0@broadsci.com> wrote:
>> Hi does anyone have any recent experience buying generic PL
>> 259 style crimp connectors for RG 400 style cable and if so
>> could they share their vendor contract info with me ?
>
> I don't specifically buy "generic" connectors, but of all of the PL-259
> crimp connectors for 0.195" OD coax that I've used, trying to put them on a
> cable with a stranded center conductor like RG400 has always been
> problematic, if not for the stranded conductor being too large, but also for
> the fact that the strands unravel easily when trying to install the
> connector on the end of the cable. For that reason, I avoid stranded-center
> cables in that size range when I have to use PL-259's. A viable replacement
> for your RG400 would be RG142/B, which is effectively the same cable but
> with a solid center conductor.
>
> If you do want to try to stick with RG400, I'd suggest using PL-259's
> designed to be used on LMR200. LMR200 has a 0.195" OD like RG400 and
> others, but has a larger-gauge center conductor due to the lower dielectric
> constant of LMR-type cables as compared to teflon or poly. As such, you
> will have a better chance of getting the RG400 strands to cooperate with the
> larger center pin aperture on an LMR200 connector.
>
> 73.
> --- Jeff WN3A
>
>
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