Whichever impedance transformation you want. Depends on antenna being used.
One thing. A balun becomes lossy when used to match a very reactive load.
If you have a load of say 300 ohms, a 4: 1 balun would be most suitable even
though there would be still a slight mismatch. (It wants to see 200 ohms
with a 50 ohm output transmitter)
Again, although it will "work", try and avoid using a balun with a highly
reactive load, especially if you are running higher power!
73,
Sandy W5TVW
----- Original Message -----
From: "bob conley" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Sunday, September 09, 2007 11:30 AM
Subject: [Elecraft] 1:1 / 4:1 baluns
I'm showing my ignorance again!
What determines which balun you use
RC
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