[Elecraft] Re: ATU efficiency and the Elecraft T1

[wayne burdick]

On Aug 8, 2005, at 10:01 AM, Darrell Bellerive wrote:

> If I recall the BL1 was designed for a 200 ohm load. Will
> it still do a 4:1 conversion if the load is 1000 or 2000 ohms?

Yes, although the higher the impedance, the more the balun's own strays 
will come into play. (Note also that at QRP levels, a large balun such 
as the BL1 should have negligible heating loss over a very wide 
impedance range.)

I'd suggest experimenting ahead of time with the tuner, balun, and 
typical antennas.

73,
Wayne
N6KR


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