On 2/11/2011 1:12 PM, Paul Christensen wrote:
> A few weeks ago, Ian, GM3SEK suggested looking into a clamp-type UHF/PL-259
> connector (not crimp) that offered easy assembly and a weather-resistant
> backing for outdoor installations. The only soldering required is for the
> inner conductor.
>
> I ordered a dozen connectors through Newark Electronics and the shipment
> arrived today. I had a RG-214 jumper that needed shortening so I tried the
> new connectors this morning.
>
> http://www.newark.com/jsp/search/productdetail.jsp?SKU=94M6035
>
> These connectors are specific to the larger RG-213/214 and LMR400 class of
> cables. However Multicomp offers a smaller clamp-style connector for RG-58.
>
> Cable prep for the Multicomp clamp UHF connector could hardly be easier.
> When Ian said it was a one cut prep with no special tools required, he meant
> it. I used a ChannelLock cable cutter (seen on the bench) but a utility
> knife could also be used to make the single cut. I simply took the cable
> cutter to rotate a single cut at one time through the jacket, braid,
> dielectric, and stopped at the inner conductor. The jacket, braid, and
> dielectric are spun off in one twist and discarded. Next, a flanged
> metallic and non-metallic bushing are inserted onto the end of the cable.
> The result looks like this:
>
> http://72.52.250.47/images/PL-259-1.jpg
>
> You can see I first installed the connector on a section of discarded LMR400
> for a trial. Notice the end clamp and red non-metallic bushing on the
> cable. The connector inner pin must be milled out just a bit to accommodate
> the LMR400's solid inner conductor. I inserted a 7/64 drill bit and twisted
> until the opening widened. This step is not required with the RG cables and
> may not be necessary with other LMR400 variants like UF.
UF has a larger center conductor than regular LMR-400
73
Roger (K8RI)
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