Sujet : Re: Dressing RG6
De : g (at) *nospam* crcomp.net (Don)
Groupes : sci.electronics.designDate : 14. May 2024, 23:20:56
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <20240514c@crcomp.net>
References : 1 2 3 4 5
John Larkin wrote:
Don 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.
>
Capacitance between the coax outer and the copper pipe? Proper coax
shouldn't have any external field.
Does a ferrite bead by any other name (eg metal armor) contain parasitic
capacitance?
... A ferrite bead can be modeled as a simplified circuit
consisting of resistors, an inductor, and a capacitor ...
<
https://www.analog.com/en/resources/analog-dialogue/articles/ferrite-beads-demystified.html>
Danke,
-- Don, KB7RPU, https://www.qsl.net/kb7rpuThere was a young lady named Bright Whose speed was far faster than light;She set out one day In a relative way And returned on the previous night.