The material contained in this document is the property of Electronics & Innovation Ltd., it is
subject to change without notice.
July 2012 Revision I
10
better than 25 dB down from the fundamental.
(a)
If the above items are found to be outside of the specification, check
the spectral content of the input signal. If this is a pure signal then
the unit needs to be returned to the factory for service.
4.3.1 Measurement of Gain
1. Equipment Required (or equivalent):
a)
Osilloscope - Tektronix T921
b)
Sweep/Generator - HP8601A
c)
Signal Generator - Exact Model 7060
d)
50 ohm Detector - Wavetek D151
e)
Attenuator, 30 dB, 200 Watts Bird
Figure 4-1. Gain Measurement
2. Connect the equipment as shown in Figure 4-1, then proceed as follows:
a)
Set the oscilloscope to DC, Time/cm to Ext. X, and gain to
l0mv/cm.
b)
Set the sweep generator to the video sweep mode with the start
frequency at 10 kHz and the sweep width to 12 MHz.
c)
Disconnect the 2100L from the set-up and connect the
sweep/generator RF output directly to the 30 dB attenuator.
