Topband: The Magic-T

[donovanf at erols.com]

This is the corrected URL for Steve's Magic-T video 


www.youtube.com/watch?v=_Bbt1IcC4bk 


73 
Frank 
W3LPL 
----- Original Message -----

From: "VE6WZ_Steve" <ve6wz at shaw.ca> 
To: "topband" <topband at contesting.com> 
Sent: Tuesday, February 9, 2021 10:29:54 PM 
Subject: Topband: The Magic-T 

Today I uploaded a video to my RX series which explains the Magic-T combiner. 
I have received a few emails asking me “how do I make the magic-T”? so I thought a video would be helpful. 

I show the method for winding and building the Magic-T combiner and I explain how it is used in phased RX antennas. 
The associated 2:1 impedance transformer is discussed, and I show the difference between an isolated and auto-transformer architecture. 

I also discuss an error that can be made when building phased RX antennas if care is not taken to avoid an unintentional 180 phase shift at one of the elements, especially if using home-brew matching boxes. 

YouTube video: https://youtu.be/_Bbt1IcC4b <https://youtu.be/_Bbt1IcC4b>- 

73, de steve ve6wz 
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