[Amps] Topband: PL259 type connectors for RG11 LMR400

Fri Apr 9 11:00:53 EDT 2021

Excellent stuff, I use it since 1976.
Over here it is not that expensive, €2,80 per meter.

73
Peter

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Jim
Sent: Freitag, 9. April 2021 04:45
To: amps at contesting.com
Subject: Re: [Amps] Topband: PL259 type connectors for RG11 LMR400

How long of a run?

Bite the bullet... Andrew / Comscope LDF4-50. Lasts forever!  If you 
live near Springfield MO, I have a BUNCH of it, and LDF7-AVA7.

Thanks
73
Jim W7RY

On 4/8/2021 9:27 PM, qrv at kd4e.com wrote:
> Why not the Belden 9913F7, for VHF, please?
>
> https://www.theantennafarm.com/catalog/index.php?main_page=product_info&cPath=342_345_515_544&products_id=1752 
>
>
> It looks to be about the same loss, more flexible, and about the same 
> price as the LMR400.
>
> The RG-213 has a VOC of 66% vs 84%, the 213 is higher loss (even on 
> 6m), 89% shield, and a smaller center conductor.
>
> is there a fair argument to have all cables rated for VHF performance 
> - in case you have to switch cables in a hurry?
>
> Just asking ... I've always just used what I had on-hand, or could 
> afford cheap, but am now trying to upgrade it all.
>
> Thanks,
>
> David KD4E
>
>
>> 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 at 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 at contesting.com>
>>> To: "Raymond Benny" <rayn6vr at gmail.com>, "160" <topband at 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 at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps

_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps