SIGLENT
26 SSG3000X Service Manual
4)
Set the center frequency to 1Ghz.
5)
Set the span to 0 Hz.
6)
Set the reference level to 0 dBm.
7)
Set the input attenuation to 10 dB.
8)
Set the resolution bandwidth to 100 Hz.
9)
Set the video bandwidth to 100kHz.
10) Set the sweep time to 1s.
11) Set the trigger mode to video trigger.
19. Press
Click to trigger
on the display of the SSG3000X to start a pulse sweep and wait
for the analyzer to finish a sweep, then press
Peak Search
to locate the peak
20.
Press
Marker
->
Delta
->input 0.5s, then press
Click to trigger
on the display of the
SSG3000X again. record the
Delta
value which equal to the
-
On/Off Ratio
Test Record Form
SSG3000X
Output
Frequency
Test Item
Measure
ment
Calculated
Result
Limit
Pass/ Fail
1 GHz
On/Off Ratio
＞
70 dBc
Note:
[1] Calculation Result = -Delta.
Exit I Q modulation test
Specification
IQ modulation feature
Modulate source
[5]
external
Band width
base band I or Q <100 MHz(typ.)
RF(I+Q)<200 MHz(typ.)
Full-scale input
2
2
0.5
I
Q
Vrms
EVM
16QAM
[5]
, Root cosine filler(
ａ=0.22),5 MSps,
level
≤0 dBm
10 MHz<f
≤
1.5 GHz , EVM
≤
0.7 %(nom.)
1.5 GHz<f
≤
3.2 GHz , EVM
≤
1.2 %(nom.)
QPSK, Root cosine filler (
ａ=0.22),5 MSps,
level
≤0 dBm
10 MHz<f
≤
1.5 GHz , EVM
≤
0.7 %( nom.)
1.5 GHz<f
≤
3.2 GHz , EVM
≤
1.2 %( nom.)
