Gen Load
The Gen Load (Device Input Impedance) measurement function is
available by pressing the FUNCTION GEN LOAD key.
The Gen Load function is used to measure the input impedance of a
device under test. It does this by generating a signal through the
internal 600 Ω source impedance of the generator. Then, the voltage
at the output is measured. The input impedance of the device under
test can then be calculated as a voltage divider.
The upper left section of the display shows the measured input
impedance in ohms. No other units are available, and the upper left
soft key has no effect. The upper right section of the display shows the
Figure 4-34. Main panel in GEN LOAD function
FREQUENCY
COUNTER
PRIMARY
READING
DETECTOR
GENERATOR
OUTPUTS
B
A
INPUT
RANGING
LCD DISPLAY
INTERNAL
JUMPER
INPUT
MONITOR
SPEAKER/
HEADPHONE
READING
MONITOR
600
DUT'S LOAD
RESISTANCE
CHANNEL A
DUT'S LOAD
RESISTANCE
CHANNEL B
ANALOG
GENERATOR
Figure 4-35. Block diagram of genrator loading measurement
4 Functions
Gen Load Function Descriptions
4-38 ATS-1Access User's Manual
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