SECTION 1 GENERAL
1-17
(Continued)
Model MS2668C
Frequency response
Relative:
±1.5dB (9kHz to 3.2GHz, band 0), ±1.0dB (100kHz to 3.2GHz, band 0)
±1.5dB (3.1 to 8.1GHz, band 1–, 1+ (n=1)), ±3.0dB (8.0 to 14.3GHz, band 1+ (n=2))
±4.0dB (14.1 to 26.5GHz, band 2– (n=4)) , ±4.0dB (26.2 to 40GHz, band 3– (n=6))
*RF ATT 10dB, after pre-selector tuning at band 1, 2, 3 and 4, refrenced to midpoint highest and lowest
frequency deviation in each band
Absolute:
±5.0dB (9kHz to 40GHz,band 1, RF ATT 10dB, referenced to 100MHz)
*At band 1, 2, 3, after pre-selector tuning
Scale:10div
Log scale: 10, 5, 2, 1dB/div
Linear scale: 10, 5, 2, 1%/div
Fidelity (after calibration)
Scale Fidelity Log scale: ±0.4dB (0 to –20dB), ±1.0dB (0 to –70dB), ±1.5dB (0 to –85dB), ±2.5dB (0 to –90dB)
Linear scale: ±4% of reference level
Marker level resolution
Log scale: 0.01dB
Linear scale: 0.02% of reference level
Spurious response
2nd harmonic distortion:
≤–60dBc (10 to 200MHz, band 0, mixer level: –30dBm)
≤–70dBc (0.2 to 1.55GHz, band 0, mixer level: –30dBm)
≤–90dBc or average noise level(1.55 to 15GHz, band 1, 2, 3, 4, mixer level: –10dBm)
Two signal 3rd order inter-modulation distortion:
≤–70dBc (10 to 100MHz), ≤–80dBc (0.1 to 8.1GHz)
≤–75dBc or noise level (8.1 to 26.5GHz)
≤–75dBc or noise level (typical, 26.5 to 40GHz)
*Frequency difference of two signals ≥50kHz,mixer input level: –30dBm
Image response:
≤–65dBc (Input frequency ≤18GHz), ≤–60dBc(Input frequency ≤22GHz)
≤–55dBc (Input frequency ≤40GHz)
Multiple response/Out of band response:
≤–70dBc (≤14GHz), ≤–60dBc (≤26GHz), ≤–55dBc (≤40GHz)
1 dB gain compression ≥–5dBm (≥100MHz, at mixer input level)
Sweep time
Setting range: 20ms to 1000s
(manual settable, or automatically settable according to span, resolution bandwidth and video bandwidth)
Accuracy: ±15% (20ms to 100s), ±25% (110s to 1000s), ±1% (digital zero span mode)
Sweep mode Continuous, single
Time domain sweep mode Analog zero span, digital zero span
Zone sweep Sweeps only in frequency range indicated by zone marker
Tracking sweep Sweeps while tracking peak points within zone marker (zone sweep also possible)
Numbers of points 501
Detection mode
NORMAL: Simultaneously displays max. and min. points between sample points
POS PEAK: Displays max. point between sample points
NEG PEAK: Displays min. point between sample points
SAMPLE: Displays momentary value at sample points
Detection mode switching uncertainty: ±0.5dB (at reference level)
Display
Color TFT-LCD, Size 5.5“, Number of colors:17 (RGB, each 64-scale settable),
Intensity adjustment: 5 steps settable
Display function
Trace A: Displays frequency spectrum
Trace B: Displays frequency spectrum
Trace Time: Displays time domain waveform at center frequency
Trace A/B:Displays Trace A and Trace B simultaneously, simultaneous sweep of same frequency, alternate
sweep of independent frequencies
Trace A/BG:Display frequency region to be observed (background) and object band (foreground) selected
from background with zone marker simultaneously, alternate sweep
Trace A/Time: Displays frequency spectrum ,and time domain waveform at center frequency simultaneously
Trace move/calculation: A→B, B→A, A→ , A+B→A, A-B+DL→A
Storage functions NORMAL,VIEW,MAX HOLD,AVERAGE,CUMULATIVE,OVERWRITE
Functions Sweep Amplitude
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