Datasheet

www.tektronix.com 27
Mixed Domain Oscilloscopes
2. Spectrum Analyzer (requires Option SA3 or SA6)
Spectrum analyzer input
Span 1 kHz –3 GHz (models with option SA3) or 1 kHz –6 GHz (models with option SA6)
Span adjustable in a 1-2-5 sequence
Variable resolution = 1% of the next span setting
Resolution bandwidth range The resolution bandwidth range for windowing functions is as follows:
Kaiser (default): 20 Hz – 200 MHz
Rectangular: 10 Hz – 200 MHz
Hamming: 10 Hz – 200 MHz
Hanning: 10 Hz – 200 MHz
Blackman-Harris: 20 Hz – 200 MHz
Flat-top: 30 Hz – 200 MHz
Adjusted in a 1-2-3-5 sequence
RBW shape factor (Kaiser) 60 dB/3 dB shape factor: ≥ 4:1
Reference level Setting range: -140 dBm to +30 dBm in steps of 1 dB
Input vertical range Vertical measurement range: +30 dBm to DANL
Vertical setting of 1 dB/div to 20 dB/div in a 1-2-5 sequence
Vertical position -100 divs to +100 divs
Vertical units dBm, dBmV, dBµV, dBµW, dBmA, dBµA
Displayed average noise level (DANL)
Frequency range DANL
9 kHz –50 kHz < -116 dBm/Hz (< -123 dBm/Hz, typical)
50 kHz –5 MHz < -130 dBm/Hz (< -141 dBm/Hz, typical)
5 MHz –400 MHz < -146 dBm/Hz (< -150 dBm/Hz, typical)
400 MHz –3 GHz < -147 dBm/Hz (< -150 dBm/Hz, typical)
3 GHz –4 GHz (models with option SA6 only) < -148 dBm/Hz (< -151 dBm/Hz, typical)
4 GHz –6 GHz (models with option SA6 only) < -140 dBm/Hz (< -145 dBm/Hz, typical)
DANL with TPA-N-PRE preamp attached
Preamp set to “Auto”, and Reference Level set to -40 dB
The DANL of the MDO4000C with the preamp in the Bypass state is ≤3 dB higher than the DANL of the
MDO4000C without the preamp.
Frequency range DANL
9 kHz –50 kHz < -119 dBm/Hz (< -125 dBm/Hz, typical)
50 kHz –5 MHz < -140 dBm/Hz (< -146 dBm/Hz, typical)
5 MHz –400 MHz < -156 dBm/Hz (< -160 dBm/Hz, typical)
400 MHz –3 GHz < -157 dBm/Hz (< -160 dBm/Hz, typical)
3 GHz –4 GHz (models with option SA6 only) < -158 dBm/Hz (< -161 dBm/Hz, typical)
4 GHz –6 GHz (models with option SA6 only) < -150 dBm/Hz (< -155 dBm/Hz, typical)