User’s manual
Although RigExpert AA-1500 ZOOM is designed for high performance without any
calibration, an
open-short-load calibration may be applied for better precision.
The
standards used for calibration should be of high quality. This requirement is
especially important for high frequencies (100 MHz and upper). Three different
calibration standards should be used: an “
open
”, a “
short
” and a “
load
” (usually, a
50-Ohm resistor). A place where these standards are connected during calibration is
called a
reference plane. If the calibration is done at the far end of a transmission line,
parameters of this line will be subtracted from measurement results and the analyzer
will display “true” parameters of a load.
36
Annex 6
Calibration
