Service manual

8510XF Network Analyzer Systems 3-45
Operation
Alternative 1.0 mm Calibrations
Broadband TRM This is a method of calibrating across the entire frequency range of the
8510XF, using the Thru-Reflect-Match technique.
NOTE When this technique is used, the performance of the 8510XF is not specified.
Use broadband TRM calibration only in situations where saving time is
more important than insuring accuracy.
Broadband TRM
Standards
The broadband TRM calibration process is essentially the same as TRM
process already described under “TRL (TRM) 2-Port” on page 3-19:
{THRU} Connect Port 1 to Port 2 through a cable.
{S11 REFLECT
SHORT}
Connect a short to Port 1 (use offset short No. 1, male or
female, as appropriate).
{S22 REFLECT
SHORT}
Connect a short to Port 2 (use offset short No. 1, male or
female, as appropriate).
{ISOLATION
LOAD}
Connect isolation standards to Port 1 and Port 2. The
isolation standard is a broadband load, which consists of
a 50 GHz load (male or female, as appropriate) combined
with a lossy delay line from the 1.0 mm calibration kit
(male or female, as appropriate).
{LINE MATCH
MATCH}
Connect match standards to Port 1 and Port 2. The match
standard is a broadband load, which consists of a 50 GHz
load (male or female, as appropriate) combined with a
lossy delay line from the 1.0 mm calibration kit (male or
female, as appropriate).
{LOWBAND
REFLECT’N}
This standard is not used in connection with the 1.0 mm
calibration kit (for information regarding its use with
other calibration kits, see the manuals for those kits).