GW Instek GSP-9300 - Page 331

APPENDIX
329
Absolute Amplitude Accuracy
Absolute Point
Center=160 MHz ; RBW 10 kHz; VBW 1 kHz;
span 100 kHz; log scale; 1 dB/div; peak
detector; 23 1°C; Signal at Reference Level
Preamp off
± 0.3 dB
Ref level 0 dBm;
10 dB RF attenuation
Preamp on
± 0.4 dB
Ref level -30 dBm;
0 dB RF attenuation
Frequency Response
Preamp off
Attenuation: 10 dB; Reference: 160 MHz; 20 to
30°C
100 kHz to 2.0
GHz
± 0.5 dB
2GHz to 3 GHz
± 0.7 dB
Preamp on
Attenuation: 0 dB; Reference: 160 MHz; 20 to
30°C
1 MHz to 2 GHz
± 0.6 dB
2 GHz to 3 GHz
± 0.8 dB
Attenuation Switching Uncertainty
Attenuator setting
0 to 50 dB in 1 dB step
Uncertainty
± 0.25 dB
reference: 160 MHz,
10dB attenuation
RBW Filter Switching Uncertainty
1 Hz to 1 MHz
± 0.25 dB
reference : 10 kHz
RBW
Level Measurement Uncertainty
Overall Amplitude
Accuracy
± 1.5 dB
20 to 30°C; frequency > 1 MHz;
Signal input 0 to -50 dBm;
Reference level 0 to -50 dBm;
Input attenuation 10 dB;
RBW 1 kHz; VBW 1 kHz; after cal;
Preamp Off
± 0.5 dB
Typical
±