Arbitrary and Function Generator
R&S AM300
E-1007.9922.12
6-136
Operating manual, 02/2005
6.2.1.6.2
Entering the Terminating Impedance
Application
In order to adapt the signal amplitude display to the connected terminating
impedance, the value of the load being delivered to the output can be
entered. The R&S AM300 uses this value to calculate the voltage present at
the output. The corrected voltage value is displayed.
The upper limit and lower limit values are also recalculated internally.
Entering the
output load
1.
In the
menu
press the
function key
.
An entry field containing the currently applicable setting is displayed. The
default setting is "50
Ω
".
2.
Enter a new value ( 5-55).
The permissible entry range for the output load is:
1
Ω
≤
Output Load
≤
1 M
Ω
in
1
Ω
steps
The new setting is stored and the corrected voltage value is displayed.
Display
The currently applicable output voltage for the output load concerned is
displayed in the parameter field below both channel names CH1 and
CH2, e.g.: for CH1 at 50
Ω
"Ampl: 2 V
pp
"
for CH2 at 1 k
Ω
"Ampl: 3.81 V
pp
".
Note
: The output situation of both channels was the same: "Ampl: 2 V
pp
at 50
Ω
“. The terminating impedance on channel CH2 was then switched
to 1 k
Ω
.
Note
It is only possible to enter the signal amplitude in dBm if 50
Ω
has been
selected as the terminating impedance ( 6-136).
To deliver the output signal to the output complete with all the functions and
parameters that have been set, you need to switch the channel on ( 6-143).
Содержание AM 300
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