Agilent Technologies EXG Instrukcja Użytkownika Strona 26

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0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0 2000 3000 4000 5000 60001000
EVM (% ms)
Frequency (MHz)
Measured EVM performance vs carrier frequency
(QPSK, Alpha-0.25, Power = +4 dBm, Symbol Rate = 4 MSyb/s, ALC ON)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-10 -5 0 5 10 15
RMS EVM (%)
Power (dBm)
LTE E-TM 3.1 10 MHZ EVM(@ 2100 MHz)
with Option 1EA
0
1
2
3
4
5
6
7
8
9
0 2000 3000 4000 5000 60001000
EVM (% ms)
Frequency (MHz)
Measured EVM performance vs carrier frequency
(Internal channel correction OFF and ON)
QPSK, Alpha = 0.25, Power = +4 dBm, Symbol rate = 62.5 MSym/s, ALC ON
Correction ON
Correction OFF
0
0.5
1
1.5
2
3
2.5
3.5
4
4.5
5
-5 25
35 45 55 65 755 15
EVM (% ms)
Symbol rate (MHz)
Measured EVM performance vs symbol rate
(Internal channel correction OFF and ON)
QPSK, Alpha = 0.25, Power = +4 dBm, Freq. = 2.2 GHz
Correction ON
Correction OFF
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