Anritsu MS8608A, Руководство по эксплуатации, Страница: 44 / 338

Section 1 General
1-22
• Option 30: LPF for 2 GHz band carrier cut
Function This is for suppression the distortion inside spectrum analyzer by the carrier wave (1.8 to 2 GHz) in W-CDMA
low frequency band spurious measurement.
*Option 08 cannot be installed simultaneously.
Frequency range 9 kHz to 3.2 GHz (LPF: OFF), 9 kHz to 1.0 GHz (LPF: ON)
LPF attenuation characteristics
≤
–20 dB, –30 dB typical, at 1.8 to 2.2 GHz
Average noise level display [LPF: ON]
≤
–122 dBm + 2.0 x f [GHz] dB (1 MHz to 1.0 GHz, band 0)
*RBW: 300 Hz, VBW: 1 Hz, RF ATT: 0 dB
Frequency response
[LPF: ON]
±
1.0 dB (9 kHz to 1.0 GHz, band 0 )
*With 50 MHz referenced, when RF ATT is 10 dB, and temperature is +18 to +28ºC
• Option 31: Low noise floor
Function This is used to decrease the floor noise in frequency band 2+.
Average noise level display
≤
–112 dBm (7.7 to 13.2 GHz, band 2) *RBW: 300 Hz, VBW: 1 Hz, RF ATT: 0 dB
• Option 32: Maximum input level Extension
Main unit (Specifications for the items below are changed by mounting
Option 32.)
Maximum allowable level +30 dBm (1 W) average power for continuous wave
Power meter function
Level range –14 to +26 dBm
Amplitude
Level measurement
Level measurement range Average noise level to +30 dBm
Maximum input level
Average power for continuous wave +30 dBm
Reference level
Setting range
Log scale –100 to +40 dBm or equivalent level
Linear scale 22.4
µ
to 22.4 V
Reference level accuracy
After calibration, with a frequency of 50 MHz, span of 1 MHz, and when input attenuator, resolution bandwidth,
video bandwidth, sweeping time are set to Auto:
±
0.75 dB (+0.1 to +30 dBm)
• Option 33: High-accuracy power measurement
Outline Used in combination with W-CDMA measurement software improve power measurement accuracy without using
the internal power meter in the transmission power measurement screen.
Frequency range 1848 to 2171 MHz (excluding ranges from1995 to 2105 MHz)
Transmission power
–50 to +20 dBm (average power)
measurement range
Reference level –20 to +20 dBm
Transmission power accuracy When the reference level input is 25ºC
±
3ºC and input attenuator is set to Auto after automatic calibration:
±
0.4
dBm
* Excluding mismatch error
Power measurement linearity With input level of –10 dBm and without changing the level setting after range optimization:
±
0.2 dB (0 to 40 dB)
Temperature coefficient 0.015 dB/ºC
Accessory Memory card
Calibration interval 6 months