On Mon, 27 Jun 2005 15:13:05 GMT, "Chris Trask"
wrote:

Whoa, let's reign back here a bit. The test was still for a 200-ohm
load, but it was made asymmetric (150-ohms and 50-ohms) in order to
accomodate the 50-ohm network analyzer.

Hi Chris,

You state you have several of these units, performing back-to-back
applications would resolve what you call asymmetry.

The 6dB loss is a result of the

Where did the 6dB come from? I didn't notice this mentioned anywhere.

Further, there is a strong 2dB/Octave frequency characteristic that is
not explained as an issue of symmetry.

voltage at the test port being Vin/2, but the voltage at the other output
port with the 150-ohm resistor is 3Vin/2, so there is no excessive loss
through the balun.

I don't know where this Vin/2 comes from. What is this divisor you've
injected into the discussion? As you offer it has no obvious
correlation to frequency, it stands that that same 2dB/Octave roll-off
is part and parcel to the unit's loss.

In actuality, there is less than 0.1dB of power loss in
the prototype that I made.

No where in your paper do you show the method to determine this, nor
do you reveal such a figure.

The test was made to determine if the balance
was correct.

The word "balance" occurs only once in your paper, and that as an
unsupported declaration. I see no work nor data to offer it as a
conclusion.

73's
Richard Clark, KB7QHC