Hello Roy,
There is nothing strange about this.
When you perform a calibration, you pass the dummy load parameters
to the analyzer as a reference.
And when, after calibration, you measure the parameters of the
same load, then the situation turns out when you compare the
standard with the standard. Of course, the resulting parameters
will be very high.
RL 80 dB is a VSWR equal to 1.0002
Of course, for practical purposes, we absolutely do not need such
accuracy.
Regards, Alex
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No matter which OSL
or 50 ohm load I use for OSL calibration, the measurements are
coming back with crazy high values. Using the SWR meter, the
return loos reading jumps all over the place. Using an OSL that
typically has an RL of 42 to 44 dB, I performed an OSL
calibration. In return loss mode the return loss chart max
reading was 84 dB at 193 MHz. If I run the same test with the
cal turned off I get much much more realistic readings that are
fairly similar to what I get using high performance return loss
bridge and my spectrum analyzer. Is there something wrong with
my unit or could I be doing something wrong??
Alex RigExpert