Cable and Antenna Analyzer Mode
Selecting the Frequency
For the OSL or FlexCal calibration method the frequency range for the desired measure-
ment must be set. The Site Master will automatically set the frequency when a particular
signal standard is selected, or the frequency can be manually set using the F1 and F2 soft
keys.
To set the frequency to a specific signal standard for an OSL or FlexCal calibration:
Step 1.
Press the
FREQ/DIST
key.
Step 2.
Press the
Signal Standard
soft key.
Step 3.
Use the Up/Down arrow key to highlight the desired standard, then press the
ENTER
key to select.
To manually select the frequency range for an OSL or FlexCal calibration:
Step 1.
Press the
FREQ/DIST
key.
Step 2.
Press the
F1
soft key.
Step 3.
Enter the desired start frequency using the key pad or the Up/Down arrow key.
Step 4.
Press
ENTER
to set F1 to the desired frequency.
Step 5.
Press the
F2
soft key.
Step 6.
Enter the desired stop frequency using the keypad or the Up/Down arrow key.
Step 7.
Press
ENTER
to set F2 to the desired frequency.
Step 8.
Check that the start and stop frequencies displayed match the desired measure-
ment range.
Calibration
Calibration Methods
For accurate results, the Site Master must be calibrated before making any measurements.
The Site Master must be re-calibrated whenever the setup frequency changes, the tempera-
ture exceeds the calibration temperature range or when the test port extension cable is re-
moved or replaced.
The two methods of calibrating the Site Master, FlexCal and OSL calibration, can each be
accomplished with either discrete components or with the InstaCal Module, providing four
calibration techniques for maximum user flexibility. FlexCal is a broadband frequency (25
MHz to 4000 MHz) calibration that remains valid if the frequency is changed. An OSL
calibration is an Open, Short and Load calibration for a selected frequency range, and is no
longer valid if the frequency is changed. The default calibration mode is OSL.
With either calibration method, the Site Master may be calibrated manually with Open,
Short, Load (OSL) calibration components, or by using the InstaCal module.
If a Test Port Extension Cable is to be used, the Site Master must be calibrated with the
Test Port Extension Cable in place. The Test Port Extension Cable is a phase stable cable
3-2
Chapter 3 Getting Started