I agree with you Jim on LMR400. I don't like how when I cut off a piece
that has been outside, there is white dry corrosion inside of the jacket.
I got a bunch of 100' pieces from a project that were un-used so I tried
it. Always used type N and UHF connectors for the braid though.
Thanks
73
Jim W7RY
On 4/8/2021 4:18 PM, Jim Garland wrote:
I agree completely with Frank about the virtues of the DXE-PL259CS8U “Next
Generation” UHF PL259 connectors. (Actually, I pretty much always agree with Frank,
whatever the topic.) One thing I especially like about these connectors, aside from their
ease of installation, strength, and adaptability to all RG8 style coax cables, is how easily
they thread onto a female mating connector without cross threading. They are about as
foolproof as one can imagine, and I find myself cutting the ends off good jumper cables and
replacing their old style PL259s with these new ones just to avoid future problems. I think
the ability to solder the center pin and only crimp the braid is a real plus.
On a related topic, I’ve stopped using LMR400 and LMR400UF coax completely for
HF work, using instead trusty, old-time RG-213, with its untinned copper braid. I find
the aluminum foil in LMR cables unneeded and time-consuming to work with, and the
source of failures when mechanically flexed. Soldering to the foil is near impossible,
especially when I find myself belted into a tower!
73,
Jim W8ZR
Sent from Mail for Windows 10
From: donovanf@erols.com
Sent: Thursday, April 8, 2021 1:58 PM
To: 160
Subject: Re: Topband: PL259 type connectors for RG11
The DX Engineering DXE-PL259CS8U-12 crimp coax connector
with solder center center pin should work perfectly on RG-11.
I fold back the RG-11 center conductor about 1/4 inch to provide
more surface area for soldering
73
Frank
W3LPL
----- Original Message -----
From: "Rick Kunath via Topband" <topband@contesting.com>
To: "Raymond Benny" <rayn6vr@gmail.com>, "160" <topband@contesting.com>
Sent: Thursday, April 8, 2021 7:39:36 PM
Subject: Re: Topband: PL259 type connectors for RG11
DX Engineering has some that would work I think. It's a crimp on the
shield and a soldered center pin.
https://www.dxengineering.com/parts/dxe-pl259cs8u-12
Not sure if that would work for your application? I suspect that the
larger sized center pin needed for 50 ohms would make a crimp to the
center pin problematic on 75 ohm cable in a 50- ohm connector.
I've never used these connectors before but I might now that I see them.
Any cables I make up with PL-259 connectors i have been soldering both
the shield and the center pin. On the shield end I strip the jacket and
flux and tin the braid. Then I measure for center pin length, and use a
tubing cutter to cut the tinned shield to the right dimension, clean the
cut edge to remove any bits of metal and screw on the PL-259. After that
I remove the tip of a Weller 125 watt soldering gun and after fluxing
the 4 solder holes in the PL-259 I bridge the connector across the
soldering gun ends where the tip usually goes. The connector becomes the
tip, heats up quickly and a quick application of solder and its soldered
all around. I let it cool before moving it and then quickly solder the
center pin and trim it.
I've had good luck doing that over the years (so far).
For N connectors it's always a shield crimp but I solder the center pin on.
Rick Kunath, K9AO
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|