SO-239 hood?

[Mark Whittington]

N connectors are great but putting them on cables is not.  If I really need
a 50 ohm connector I'll use BNC or SMA; the "serious hams" can keep all the
N connectors for themselves.

As for the crimp SO-239's, I haven't had any problem with them.  I usually
put adhesive heat shrink over the crimp side and for outdoor use I wrap
with coax sealing tape.  Works great, probably less great if you plan to
use them in a puddle or in your pool though.

I'll check later and see if I've got any in my collection.  If I do I'd be
happy to drop a couple in your mailbox this weekend.



On Fri, Jan 8, 2021 at 1:19 PM Alex Fraser <beatnic at comcast.net> wrote:

> First of all "UHF female crimp connectors" sounds oddly exciting, even at
> my age.
>
> Wandering back to the point I have seen those in my searches and will
> probably buy a couple to see what they look like.   Does crimping hold up
> well outside?
>
> I have a metal lathe and I'm comfortable with making threads.  The outer
> body of a So-239 would be easy, but that inner part the the center pin fits
> into would be trick to make. Also the crimp they use to hold in the
> insulating material could be a problem.  I don't have any test gear, not
> the skill to figure out the electrical qualities of these connectors.  I
> seem to remember seeing the specs for teflon vs bakelite somewhere.  So
> often the electrical specs just aren't given. My application in this case
> is HF and I'm sure the old UHF connectors are adequate.  I can almost here
> the "tsk. tsk, tsk" of more serious hams wondering why I don't use N
> connectors...
>
>
> On 1/6/2021 4:31 AM, Mark Whittington wrote:
>
> Also, is there a reason to use these instead of UHF female crimp
> connectors?
>
> On Wed, Jan 6, 2021 at 4:30 AM Mark Whittington <markwhi at gmail.com> wrote:
>
>> You probably could make them, but they're ~$9/each in qty 1 from Newark
>> so probably not worth the effort.
>>
>>
>> https://www.newark.com/amphenol-rf/83-765-ug-177-u/hood-uhf-coaxial-connector/dp/39F038
>>
>> On Tue, Jan 5, 2021 at 7:08 PM Alex Fraser <beatnic50 at gmail.com> wrote:
>>
>>> Ha, I found one in my junk box and it had a number on it!  I found a
>>> match for "UHF hood".  Damn, they ain't cheap!  I wonder if I can make them
>>> out of old .308 brass?
>>>
>>> The pic is from Arcade Electronics and they have a note that they aren't
>>> available.
>>>
>>> On 1/5/2021 6:23 PM, Alex Fraser wrote:
>>>
>>> I have seen an adapter for an SO-239 that allows you to connect a
>>> regular 4 bolt panel jack (SO-239) to the end of a bit of coax. It is like
>>> a cone shaped hood with the top shaped so you can solder the braid to it
>>> and the wide part of the cone flares out so you can use screws to attach
>>> the jack. IIRC it had a small hole in the side to solder the center
>>> connector.  It was a stamping.
>>>
>>> So what is it called and where do you get them?
>>>
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>>
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