[Amps] Topband: PL259 type connectors for RG11 LMR400

Fri Apr 9 10:49:42 EDT 2021

Wow, nice stuff!

https://www.theantennafarm.com/catalog/index.php?main_page=product_info&products_id=1484

I'm at a bit of a distance in SE-GA.

Thanks,

David, KD4E

> 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