Tektronix ADA400A Instruction Manual page 28

Reference
18
Bandwidth Limiting
Isolating or Eliminating
Sources of Interference
Limiting the bandwidth is a useful technique for keeping unwanted high
frequency noise from interfering with the display of lower frequency signals. The
ADA4O00A Differential Preamplifier allows you to limit the upper bandwidth to
100 Hz, 3 kHz, 100 MHz, and FULL (1 MHz).
Some pieces of electronic or electrical equipment can generate enormous
amounts of electrical noise. One solution is to isolate or eliminate the noise that
these devices emit:
m= Move sources of noise away from test setup or isolate test setup.
m Shield test setup.
mTM = Make sure all electronic equipment that is connected to the AC power line is
properly grounded through the power cord.
ADA4OOA Instruction Manual