2461Type C User Manual
Racal Instruments
1998
Performance Verification and Adjustments 6-15
Use the equation :
or
to verify compliance.
Input 2 Filter
Check
Set the UCT to its default state. Select 50
Ω
impedance for Input
2.
Configure the UCT as follows:
*RST
returns unit to default state
INP2:IMP 50
selects 50
Ω
impedance for Input 2
Connect the UCT to the signal generator as shown in Figure 6-8.
Figure 6-8, Input 2 Filter Check Configuration
Set the generator to 50kHz, 1Vrms. Check that the UCT is
measuring 50kHz and the peak to peak signal level is:
Command Syntax Notes
MEAS2:FREQ? Confirm 50kHz
MEAS2:VOLT:MAX? V
P1
MEAS2:VOLT:MIN? V
N1
Switch in the input filter for channel 2 and again check that the
counter measures a frequency of 50kHz. Measure the peak to
peak signal and verify that the signal amplitude is reduced by
greater than 2dB.
GATE
IN
1
VT1
VT2
ARM
T2
IN
STD
OUT
IN
2
OSC
UCT
IN 3
SIGNAL GENERATOR
RF OUT
INPUT 2
(
) (
)
(
)
0
.
2
/
log
*
20
2
2
1
P1
>
−
−
N
P
N
V
V
V
V
(
) (
)
(
)
25
.
1
/
2
2
1
1
>
−
−
N
P
N
P
V
V
V
V
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