Mating your coax to ladder line.


 According to Roger (AE4VJ), interfacing your coaxial cable with ladder line needn't be a difficult problem.  Just follow the guide given in this video, and you'll be able to use whatever cable or ladder line is available in your shack for a simple coax to ladder line connection

Just be aware that a direct tie between ladder line and coax involves major swr problems, since the impedance of coax is around 50 ohms, while ladder line can show an impedance of approximately 450 ohms.  

A balanced line "tuner" can help tame the impedance mismatch.

The video is done well, and Roger explains how the mismatch issue can be solve in a variety of ways.

If you can't see the video, please insert this title URL into your brower search box:  https://www.youtube.com/watch?v=3uw5fpFd0Sk.

Here are some comments from Roger (VE4VJ):

In this episode, we go over how to transition from coax to ladder line. Its not that complicated really. Sometimes, all you need is someone to spark an idea and it becomes very clear. This is a very simple and clean way to mate your coax to your ladder line fed antenna such as the ZS6BKW or G0GSF antenna. Tools you'll need: Ladder Line Coax End insulator Screws Washers A couple of nuts for the screws above Some ring terminals Heat Shrink tubing or black tape Wire strippers Proper crimper for the ring terminals Parts I used: Alpha Delta End Insulator DX Engineering https://www.dxengineering.com/parts/a... $2.99 ea Ring Terminal Kit https://www.amazon.com/gp/product/B07... Heat Shrink Kit https://www.amazon.com/gp/product/B07... Ladder Line https://www.dxengineering.com/parts/d...

How To Attach Your Ladder Line To Coax

0:58

Spade Connectors

2:03

Prep Your Ladder Line

3:52

Differences between the Insulated and Non-Insulated

7:57

Prepping Your Coax

12:20

Prepping Your Coax To Mate up to the Ladder

12:37

Heat Shrink

14:06

Minimal Cost

28:54

Follow along using the transcript.

AE4VJ

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Thank you for visiting my Amateur Radio Blog. I value your comments and suggestions. For Amateur Radio Antenna Topics and Discussions, stay here. For Amateur Radio News and Trends, please visit my news site at https://bigislandarrlnews.com.
Aloha es 73 de Russ (KH6JRM).

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