[TowerTalk] Crimp on Coax connectors

[John Simmons]

Older Andrew LDF4 connectors had a soldered center pin.

-John NI0K

wc1m73 at gmail.com wrote on 9/8/2019 5:56 PM:
> I stand corrected. It's Amphenol part number 182130-10. The drawing
> indicates the center tube is 3.5mm in diameters, probably closer to 3mm
> opening. LMR-400 center conductor is 2.74mm, so it should fit. Not sure
> about the BuryFlex I use, which may have a slightly larger center conductor.
>
> DXE has them, but price is $33.99 for four ($8.50 each.) Mouser has them for
> $4.67 each at that quantity. Shipping evens it out a little if you buy over
> $100 from DXE, but quantity breaks at Mouser counter. I ordered four from
> Mouser to see how they compare with the DXE center pin solder connectors
> with regard to sizing for the center pin. How solid the crimp looks, etc.
>
> 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
>
> -----Original Message-----
> From: W3YY <w3yy at cox.net>
> Sent: Saturday, September 7, 2019 1:32 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] Crimp on Coax connectors
>
> Hi Dick -
>
>   
>
> It looks like there are Amphenol PL-259 and N-series crimp connectors for
> LMR-400 that allow crimping the center pin. See the DXE chart and the "Hex
> crimp center pin" row in the chart at
>
>   
>
> https://static.dxengineering.com/global/images/chartsguides/d/dxe-ut-kit-crm
> p2_ty.pdf
>
>   
>
> DXE carries at least the PL-259 types in their catalog.
>
> 73, Bob - W3YY
>
> ----------------------------------------------------------------------------
> ----------------------------------------------------------------------------
> -----------------------------------------------------------------
>
> -----Original Message-----
> From: wc1m73 at gmail.com [mailto:wc1m73 at gmail.com]
> Sent: Friday, September 06, 2019 5:46 PM
> To: 'Richard (Rick) Karlquist'; 'W3YY'; towertalk at contesting.com
> Subject: RE: [TowerTalk] Crimp on Coax connectors
>
> You have to solder the center pin if it's not designed to be crimped, as is
> the case with LMR-400 compatible UHF crimp connectors like the ones from
> DXE.
>
>
>
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