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From: Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>
Newsgroups: sci.electronics.design
Subject: Re: Dressing RG6
Date: Wed, 15 May 2024 01:52:34 -0000 (UTC)
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John Larkin <jjSNIPlarkin@highNONOlandtechnology.com> wrote:
> On Tue, 14 May 2024 21:46:35 -0000 (UTC), Phil Hobbs
> <pcdhSpamMeSenseless@electrooptical.net> wrote:
> 
>> John Larkin <jjSNIPlarkin@highNONOlandtechnology.com> wrote:
>>> On Tue, 14 May 2024 19:22:12 -0000 (UTC), "Don" <g@crcomp.net> wrote:
>>> 
>>>> Phil Hobbs wrote:
>>>>> Phil Hobbs wrote:
>>>>>> Don Y wrote:
>>>>>>> I've several short (a few feet) lengths of RG6 that I
>>>>>>> would like to "strongly coerce" into assuming a particular
>>>>>>> dressing.
>>>>>>> 
>>>>>>> Securing the cables to a stationary surface isn't practical
>>>>>>> without significantly lengthening them and distorting
>>>>>>> their "natural" routing.
>>>>>>> 
>>>>>>> But, ISTM that I should be able to slip each cable into
>>>>>>> a comparable diameter copper (?) pipe and then use traditional
>>>>>>> tools to bend that pipe into the appropriate configuration.
>>>>>>> I'd have to observe constraints like minimum bend radius
>>>>>>> but are there other issues that I might "discover" down the
>>>>>>> road?
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> You?re planning to make a random- length shotgun balun.
>>>>> 
>>>>> Bazooka balun.
>>>> 
>>>> The parasitic capacitance created between coax and its metal armor can
>>>> open a Pandora's box of potential problems.
>>>> 
>>>> Danke,
>>> 
>>> Capacitance between the coax outer and the copper pipe? Proper coax
>>> shouldn't have any external field.
>>> 
>>> 
>> 
>> If the whole system is really coaxial, that’s true. Leaky shields, ground
>> loops, and so on, will modify that. 
>> 
>> Depending on the application, you may or may not care. 
>>  
> 
> Why can't he just use tie-wraps? Or hot-melt?
> 
> 

What a simplistic suggestion!

This is the Yuniskis world we’re talking about, where nothing is ever so
simple as it might seem. 

You might as well suggest that Baer get a new computer!

(And in my world, RG-58 cables talk to each other all the time.)

Cheers 

Phil Hobbs 



-- 
Dr Philip C D Hobbs  Principal Consultant  ElectroOptical Innovations LLC /
Hobbs ElectroOptics  Optics, Electro-optics, Photonics, Analog Electronics