Iz,
According to the email trail the 800 ohm load was selected because that was the maximum the test fixture could produce.?
The 6 dB figure comes from a simulation that I did in my lab. I calibrated the spectrum analyzer/tracking generator combination to 0 with a test cable assembly. I then shunted the S/A input with a 22 ohm resistor, resulting in about a 16 ohm load for the tracking generator. This reduced the displayed power level by 6.5 dB.
What the displayed value on the source RF meter in the test setup would be determined by the output characteristics of the RF source and the probe characteristics of the power meter, neither of which I have access to. I can be assured however that the reading would be wildly inaccurate.
WA8TOD
