Internal Reference Oscillator
Frequency: 10 MHz
Timebase Stability
Standard Timebase: ± 10 x 10 –6
High-Stability Timebase (Option 1E5)
Aging Rate: 5 x 10 –10 ⁄day; 1 x 10 –7 ⁄ year
Temperature Effects: 1 x 10 –10/ ˚C
Line Voltage Effects: 5 x 10 –10 (10˚ change in voltage)
CW and Manual Modes
Accuracy: Stability x f c time base
Resolution: 1 Hz
Switching Time (typical): 70 ms max.
Ramp Sweep Mode
Accuracy 1, 2: The greater of ± 0.01% of span ± timebase
stability x f c or ± 75 k Hz ± timebase stability x f c
Sweep Time: 10 ms to 100 s; 50 ms for full span
Resolution: 1 kHz
Step Sweep Mode
Accuracy: Timebase stability x f c
Number of Points: 2 to 1601
Switching Time (typical) 3
: 7 ms ± 8 ms/GHz step
Output Power Characteristics
Maximum Leveled Power 1, 4
83751A, 83752A: 10 dBm
83751B, 83752B: 17 dBm (16 dBm < 2 GHz on 83752B)
Minimum Settable Power
83751A, 83752A: –15 dBm (–85 dBm w/Option 1E1)
83751B, 83752B: –10 dBm (–80 dBm w/Option 1E1)
Resolution: 0.01 dB settable
Accuracy 1
85751A, 83752A only: ± 1.0 dB (levels > –10 dBm)
83751A/B, 83752A/B: ± 1.5 dB (levels > –75 dBm)
Flatness
85751A, 83752A only: ± 0.7 dB (levels > –10 dBm)
85751A/B, 83752A/B: ± 1.3 dB (levels > –75 dBm)
Power Sweep Range: 25 dB/sweep
Power Slope Range: 0 to ± 2 dB/GHz, 25 dB max
Source Match (typical): < 1.7:1 SWR
Spectral Purity
Harmonics
83751A, 83752A: –45 dBc (–30 dBc < 1.5 GHz on HP 83752A)
83751B, 83752B: –20 dBc
Subharmonics: None
Non-Harmonic Spurious 5
: –50 dBc
Residual FM: 1 kHz RHS in CW mode (0.05 to 15 kHz BW)
Phase Noise (typical): < –75 dBc/Hz at 10 GHz in CW mode,
10 kHz offset
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