Rigol DSG3000 Series Guide de l'utilisateur Page 136

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RIGOL Chapter 6 Specifications
6-8 DSG3000 Users Guide
I/Q Modulation (Option IQ-DSG3000)
Modulation source
External, internal
Bandwidth (RF)
External modulation
Baseband (I or Q)
120MHz (nom.)
RF (I + Q)
240MHz (nom.)
Internal modulation
Baseband (I or Q)
30MHz (nom.)
RF (I + Q)
60MHz (nom.)
Carrier suppression
[1]
Carrier frequency range:
50MHz f 6GHz
40dBc (typ.)
Suppression of image
sideband
[2]
Modulation bandwidth up to
±10MHz
40dBc (typ.)
External I/Q inputs
VSWR
<1.5
Full scale input
0.5VrmsQI
22
=+
Internal modulation
EVM
16QAM , root cosine filter (α=0.22), 4MSps
50MHz f 3GHz (level≤4dBm)
0.7%rms (typ.)
3GHz < f ≤ 6GHz (level0dBm)
≤1.2%rms (typ.)
QPSK , root cosine filter (α=0.22), 4MSps
50MHz f ≤ 3GHz (level4dBm)
≤0.7%rms (typ.)
3GHz < f ≤ 6GHz (level0dBm)
≤1.2%rms (typ.)
External modulation
EVM
CDMA2000/1xEV-D0,
1.2288 Mcps, frequency 800 to
900MHz, 1800 to 1900MHz,
level4dBm
1.2%, 0.8% (typ.)
ACPR
70dB
NOTE: [1] [2]The parameter is measured at room temperature. When the temperature is difference from room
temperature, the specification will deteriorate.
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