Mryntu

Why do I get two different answers for this counting problem?

Stopping power of mountain vs road bike

How much of data wrangling is a data scientist's job?

Took a trip to a parallel universe, need help deciphering

Would Slavery Reparations be considered Bills of Attainder and hence Illegal?

Doing something right before you need it - expression for this?

Could gravitational lensing be used to protect a spaceship from a laser?

How to say in German "enjoying home comforts"

What killed these X2 caps?

How to take photos in burst mode, without vibration?

90's TV series where a boy goes to another dimension through portal near power lines

What exploit are these user agents trying to use?

Is it canonical bit space?

What is the intuition behind short exact sequences of groups; in particular, what is the intuition behind group extensions?

What mechanic is there to disable a threat instead of killing it?

Western buddy movie with a supernatural twist where a woman turns into an eagle at the end

Why is consensus so controversial in Britain?

Can one be a co-translator of a book, if he does not know the language that the book is translated into?

Is it unprofessional to ask if a job posting on GlassDoor is real?

What's the difference between 'rename' and 'mv'?

Intersection of two sorted vectors in C++

How can I make my BBEG immortal short of making them a Lich or Vampire?

How could indestructible materials be used in power generation?

Is it inappropriate for a student to attend their mentor's dissertation defense?

RG-213 Cable with electric strained wire as metallic shield of Coaxial cable

How do I extend broken coaxial cable?How to keep a disconnected coaxial connector weatherproof?How to choose a coaxial cableConnect Printed Yagi-Uda Dipole Array with Balun to coaxial cable correctlyUnderstanding coax radiation and “current on the shield”Why isn't twisted pair used for feedlines?Does a balun need to be made with coax?Current flow in a coaxial cableSoldering PL-259.. with a torch?Why does ladder line generally have a lower loss than coaxial cable?

1

$begingroup$

I'm using RG-213 coaxial cable for two-way ham radio communication. But due to weather conditions, the metallic shield of my coaxial cable (RG-213) become rusty and carbonated.

If I use copper electrical cable 3/.029 as metallic shield with aforesaid (rusty metallic shield ) Coaxial Cable, what will be the result? Will it be the best solution for my damage metallic shield coaxial cable or not? Can i get the best two way communication with this method?

coaxial-cable

share|improve this question

edited 7 hours ago

Kevin Reid AG6YO♦

16.6k33171

asked 7 hours ago

ajmal nawaz

$endgroup$

migrated from electronics.stackexchange.com 7 hours ago

This question came from our site for electronics and electrical engineering professionals, students, and enthusiasts.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Is it possible to cut out the damaged section, put connectors on the ends and join the salvaged cable with a "barrel" connector (e.g., 83-1J)?
  $endgroup$
  – Brian K1LI
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  What is the maximum frequency that this coax will be used for?
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  

add a comment | 

1

$begingroup$

I'm using RG-213 coaxial cable for two-way ham radio communication. But due to weather conditions, the metallic shield of my coaxial cable (RG-213) become rusty and carbonated.

If I use copper electrical cable 3/.029 as metallic shield with aforesaid (rusty metallic shield ) Coaxial Cable, what will be the result? Will it be the best solution for my damage metallic shield coaxial cable or not? Can i get the best two way communication with this method?

coaxial-cable

share|improve this question

edited 7 hours ago

Kevin Reid AG6YO♦

16.6k33171

asked 7 hours ago

ajmal nawaz

$endgroup$

migrated from electronics.stackexchange.com 7 hours ago

This question came from our site for electronics and electrical engineering professionals, students, and enthusiasts.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Is it possible to cut out the damaged section, put connectors on the ends and join the salvaged cable with a "barrel" connector (e.g., 83-1J)?
  $endgroup$
  – Brian K1LI
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  What is the maximum frequency that this coax will be used for?
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

I'm using RG-213 coaxial cable for two-way ham radio communication. But due to weather conditions, the metallic shield of my coaxial cable (RG-213) become rusty and carbonated.

If I use copper electrical cable 3/.029 as metallic shield with aforesaid (rusty metallic shield ) Coaxial Cable, what will be the result? Will it be the best solution for my damage metallic shield coaxial cable or not? Can i get the best two way communication with this method?

coaxial-cable

share|improve this question

edited 7 hours ago

Kevin Reid AG6YO♦

16.6k33171

asked 7 hours ago

ajmal nawaz

$endgroup$

share|improve this question

edited 7 hours ago

Kevin Reid AG6YO♦

16.6k33171

asked 7 hours ago

ajmal nawaz

share|improve this question

edited 7 hours ago

Kevin Reid AG6YO♦

16.6k33171

asked 7 hours ago

ajmal nawaz

edited 7 hours ago

Kevin Reid AG6YO♦

16.6k33171

edited 7 hours ago

Kevin Reid AG6YO♦

16.6k33171

2 Answers
2

active

oldest

votes

2

$begingroup$

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter if it does not have high-SWR protection.

Weather-damaged coaxial cable should be replaced with new coaxial cable. Be sure to apply suitable sealing tape (self-amalgamating tape) to the end connectors after tightening them down if they will be exposed to moisture.

---

The one thing you can do for damaged cable is to cut off the damaged section and install a connector (a proper coaxial connector, not a splice) to join it to a new length. However, this is not a good idea for outdoor installations since it introduces more places for water to get in.

share|improve this answer

edited 6 hours ago

answered 7 hours ago

Kevin Reid AG6YO♦Kevin Reid AG6YO

16.6k33171

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  That impedance bump has a minuscule effect below 50 Mhz, as it's only a tiny fraction of the wavelength.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @MikeWaters I understood the question as asking about replacing a long length of shield with other wire. We don't know what the length is (I removed "bump" from the answer to improve it), and the question isn't about HF specifically either.
  $endgroup$
  – Kevin Reid AG6YO♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Yes, he does not specify the frequency of interest (I just asked that), thus my comment.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I get that now. But what is "electric strained wire"? :-)
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Also, "this is not a good idea for outdoor installations since it introduces more places for water to get in" is generally very good advice indeed. We've had years of practice and experience doing just that, and with great success. Others -especially newbies- have not.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  

add a comment | 

1

$begingroup$

If part or all of the shield of your coax is corroded, then that entire portion of the coaxial cable must be discarded.

• The corrosion causes the individual strands of the shield to be isolated from one another, significantly reducing the shielding effect of the braid.




• It also causes noise to be heard in your receiver.

And as Kevin correctly stated in another answer here:

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter ...

share|improve this answer

edited 6 hours ago

answered 6 hours ago

Mike Waters♦Mike Waters

3,6332635

$endgroup$

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function ()
return StackExchange.using("mathjaxEditing", function ()
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix)
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
);
);
, "mathjax-editing");

StackExchange.ifUsing("editor", function ()
return StackExchange.using("schematics", function ()
StackExchange.schematics.init();
);
, "cicuitlab");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "520"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fham.stackexchange.com%2fquestions%2f13195%2frg-213-cable-with-electric-strained-wire-as-metallic-shield-of-coaxial-cable%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

2

$begingroup$

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter if it does not have high-SWR protection.

Weather-damaged coaxial cable should be replaced with new coaxial cable. Be sure to apply suitable sealing tape (self-amalgamating tape) to the end connectors after tightening them down if they will be exposed to moisture.

---

The one thing you can do for damaged cable is to cut off the damaged section and install a connector (a proper coaxial connector, not a splice) to join it to a new length. However, this is not a good idea for outdoor installations since it introduces more places for water to get in.

share|improve this answer

edited 6 hours ago

answered 7 hours ago

Kevin Reid AG6YO♦Kevin Reid AG6YO

16.6k33171

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  That impedance bump has a minuscule effect below 50 Mhz, as it's only a tiny fraction of the wavelength.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @MikeWaters I understood the question as asking about replacing a long length of shield with other wire. We don't know what the length is (I removed "bump" from the answer to improve it), and the question isn't about HF specifically either.
  $endgroup$
  – Kevin Reid AG6YO♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Yes, he does not specify the frequency of interest (I just asked that), thus my comment.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I get that now. But what is "electric strained wire"? :-)
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Also, "this is not a good idea for outdoor installations since it introduces more places for water to get in" is generally very good advice indeed. We've had years of practice and experience doing just that, and with great success. Others -especially newbies- have not.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  

add a comment | 

2

$begingroup$

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter if it does not have high-SWR protection.

Weather-damaged coaxial cable should be replaced with new coaxial cable. Be sure to apply suitable sealing tape (self-amalgamating tape) to the end connectors after tightening them down if they will be exposed to moisture.

---

The one thing you can do for damaged cable is to cut off the damaged section and install a connector (a proper coaxial connector, not a splice) to join it to a new length. However, this is not a good idea for outdoor installations since it introduces more places for water to get in.

share|improve this answer

edited 6 hours ago

answered 7 hours ago

Kevin Reid AG6YO♦Kevin Reid AG6YO

16.6k33171

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  That impedance bump has a minuscule effect below 50 Mhz, as it's only a tiny fraction of the wavelength.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @MikeWaters I understood the question as asking about replacing a long length of shield with other wire. We don't know what the length is (I removed "bump" from the answer to improve it), and the question isn't about HF specifically either.
  $endgroup$
  – Kevin Reid AG6YO♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Yes, he does not specify the frequency of interest (I just asked that), thus my comment.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I get that now. But what is "electric strained wire"? :-)
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Also, "this is not a good idea for outdoor installations since it introduces more places for water to get in" is generally very good advice indeed. We've had years of practice and experience doing just that, and with great success. Others -especially newbies- have not.
  $endgroup$
  – Mike Waters♦
  6 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter if it does not have high-SWR protection.

Weather-damaged coaxial cable should be replaced with new coaxial cable. Be sure to apply suitable sealing tape (self-amalgamating tape) to the end connectors after tightening them down if they will be exposed to moisture.

---

The one thing you can do for damaged cable is to cut off the damaged section and install a connector (a proper coaxial connector, not a splice) to join it to a new length. However, this is not a good idea for outdoor installations since it introduces more places for water to get in.

share|improve this answer

edited 6 hours ago

answered 7 hours ago

Kevin Reid AG6YO♦Kevin Reid AG6YO

16.6k33171

$endgroup$

share|improve this answer

edited 6 hours ago

answered 7 hours ago

Kevin Reid AG6YO♦Kevin Reid AG6YO

16.6k33171

answered 7 hours ago

Kevin Reid AG6YO♦Kevin Reid AG6YO

16.6k33171

answered 7 hours ago

Kevin Reid AG6YO♦Kevin Reid AG6YO

16.6k33171

1

$begingroup$

If part or all of the shield of your coax is corroded, then that entire portion of the coaxial cable must be discarded.

• The corrosion causes the individual strands of the shield to be isolated from one another, significantly reducing the shielding effect of the braid.




• It also causes noise to be heard in your receiver.

And as Kevin correctly stated in another answer here:

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter ...

share|improve this answer

edited 6 hours ago

answered 6 hours ago

Mike Waters♦Mike Waters

3,6332635

$endgroup$

add a comment | 

1

$begingroup$

If part or all of the shield of your coax is corroded, then that entire portion of the coaxial cable must be discarded.

• The corrosion causes the individual strands of the shield to be isolated from one another, significantly reducing the shielding effect of the braid.




• It also causes noise to be heard in your receiver.

And as Kevin correctly stated in another answer here:

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter ...

share|improve this answer

edited 6 hours ago

answered 6 hours ago

Mike Waters♦Mike Waters

3,6332635

$endgroup$

add a comment | 

$begingroup$

If part or all of the shield of your coax is corroded, then that entire portion of the coaxial cable must be discarded.

• The corrosion causes the individual strands of the shield to be isolated from one another, significantly reducing the shielding effect of the braid.




• It also causes noise to be heard in your receiver.

And as Kevin correctly stated in another answer here:

You cannot repair a coaxial cable by wrapping or replacing the outer conductor (shield) with ordinary wire. The shape of the shield is critical to its functioning (determining the characteristic impedance) and the different impedance created by using differently shaped conductors will lead to reduced performance, and possibly damage your transmitter ...

share|improve this answer

edited 6 hours ago

answered 6 hours ago

Mike Waters♦Mike Waters

3,6332635

$endgroup$

share|improve this answer

edited 6 hours ago

answered 6 hours ago

Mike Waters♦Mike Waters

3,6332635

answered 6 hours ago

Mike Waters♦Mike Waters

3,6332635

answered 6 hours ago

Mike Waters♦Mike Waters

3,6332635