Giga-tronics 2500B Series Microwave Signal Generators
Special Modes
Operation Manual, Part Number 34737, Rev C, June 30, 2011
Page 67
Chapter 6
Special Modes
The 2500B has special modes that accommodate a wide variety of test configurations. These modes are:
Cable Correction; Creates a power level correction-versus-frequency table to change the power output of the
2500B. The cable correction table is created based on a power measurement procedure performed prior to
normal testing. If the normal test setup is changed, the power measurement procedure must be performed
again in order to re-create the cable correction table.
See page 68.
External ALC; Uses a constant feedback loop to measure the power level externally, typically at the DUT.
External ALC operation allows automatic adjustment of the RF power output of the 2500B to maintain a
constant, known power level at the DUT.
See page 71.
External frequency reference: Uses an external 10 MHz or 100 MHz source as the frequency reference for the
2500B.
See page 74.
