On 2/11/2011 3:27 PM, Mike wrote:
> As part of my tower refurbishment I'm giving crimp connectors (NOT clamp) a
> try. The
> first 3 went really smoothly.
>
> No. 4 however had a problem. When I squeezed the crimper, it was like trying
> to crush
> a ground rod. The sleeve was barely deformed. Crimping further away from the
> body,
> over the coax jacket, was normal, but not where it should be.
I have close to 100 crimp on, both UHF and N type inside and out with
RG-8X, CNT-240, LMR-400, Davis Bury flex, to LMR 600. I have both the
standard and UF versions of both the LMR 400 and 600. I do not
recommend the UF versions of either as the jacket does not stand up well.
I also have a few clamp type in use.
So far, I have never had a crimp type fail and as I said I have a lot of
them.
The only time I ran into what you describe was with the wrong set of
dies in the crimper, but that should not be the case here as you were
using the same type fitting in each case. It sounds as if *maybe* you
were too far up on the body where the diameter is larger. There is a
step in size and you may have caught the shoulder which would resist
crimping.
I've been using crimp type for quite a while now. As time progresses,
contrary to Peter, I'm switching over to all crimp type as they are so
much faster and more secure. Proper cable prep, and the proper tools
are critical.
The crimp should be at the close to the connector edge of the band. With
the jacket extending a ways into the other end of the band which remains
uncrimped. Just be careful not to catch the edge of the connector as
the dies will fit over the end of the UHF and I believe the N type if
you slip just a tad too close to the end of the band.
> The coax is Buryflex, and the connector fit it well. All the connectors were
> ordered
> at the same time, and the ones I have left seem to be the same diameters.
>
I'll take a look at the UHF ones I have of that size and see if I can
repeat the problem.
73 es good luck,
Roger (K8RI)
> Anybody have an idea what I ran into?
>
> 73, Mike NF4L
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