User`s guide

1-44 Chapter1
System Verification and Performance Tests
Performance Tests
6. Test Port Input Noise Floor Level
Perform this test to determine the Port 1, Port 2, and Port 3 noise floor
levels at the input ports.
NOTE Port 1 and Port 3 are separated into four measurements (two IF
bandwidths per each frequency range with two frequency ranges being
measured).
Port 2 is separated into eight different measurements consisting of two
IF bandwidths per each frequency range on two channel paths —
channel A and channel B. Channel A is the path from Port 2 to the
A sampler. Channel B is the path from Port 2 to the B sampler. Each
channel path (A or B) is then separated into four measurements (two IF
bandwidths per each frequency range, with two frequency ranges being
measured). This totals the eight different measurements being done for
Port 2.