Specifications – Atec Agilent-8591C User Manual
Page 2

2
Specifications
Frequency specifications
Frequency range
1 MHz to 1.8 GHz
Frequency reference
Standard
Option 704
1
Aging
+1 x 10
–7
/year +2 x 10
–6
/year
Settability
+2.2 x 10
–8
+0.5 x 10
–6
Temperature stability
+1 x 10
–8
+5 x 10
–6
Frequency accuracy
Freq span
≤10 MHz
±(frequency readout x frequency ref error
2
±3.0% of span +20% of RBW +100 Hz)
Freq span >10 MHz
±(frequency readout x frequency ref error
2
+3.0% of span +20% of RBW)
Marker count accuracy
(S/N
≥25 dB, RBW/span ≥0.01)
Freq span
≤10 MHz
±(marker frequency x frequency ref error
2
+ counter resolution +100 Hz)
Freq span >10 MHz
±(marker frequency x frequency ref error
2
+ counter resolution +1 kHz)
Counter resolution
Selectable from 10 Hz to 100 kHz
Frequency span
Range
0 Hz (zero span), 1 MHz to 1.8 GHz
Resolution
4 digits
Accuracy
±2% of span, span
≤10 MHz
±3% of span, span >10 MHz
Frequency sweep
Range
Span
≥1 MHz
20 ms to 100 s
Span = 0 Hz
20 µs to 20 ms (not Option 701)
Accuracy
20 ms to 100 s
±3%
20 µs to 20 s
±2% (except Option 701)
Sweep trigger
Free run, single, line, video, external
Resolution bandwidth
1 kHz to 3 MHz, 8 selectable 3-dB bandwidths
in 1, 3, 10 sequence
Option 130
Adds 30, 100, and 300 Hz bandwidths
Bandwidth accuracy
±20%
Video bandwidth
Range
30 Hz to 1 MHz in 1, 3 sequence
Stability
Phase noise
(1 kHz RBW, 30 Hz VBW, and sample det)
<–90 dBc/Hz at >10 kHz offset from CW
signal
<–105 dBc/Hz at >30 kHz offset from CW
signal
Residual FM
<250 Hz pp in 100 ms (1 kHz RBW, 1 kHz
VBW)
System related sidebands
<–65 dBc at >30 kHz offset from CW signal
Amplitude specifications
Amplitude range
Displayed average noise level to +72 dBmV
Max safe input
Peak power
+72 dBmV (0.2 W), input attenuation >10 dB
DC
100 V
Gain compression
≥10 MHz
≤0.5 dB (+39 dBmV at input mixer
3
)
Displayed average
noise level
(input terminated, 0 dB attenuator,
1 kHzRBW, 30 Hz VBW, sample det)
Without preamp
≤–63 dBmV, 1 MHz to 1.5 GHz
With preamp
≤–83 dBmV, 1 MHz to 1 GHz
Spurious responses
(10 MHz to 1.8 GHz)
Second harmonic
<–70 dBc for +4 dBmV tone at input mixer
3
Third order intermod
<–70 dBc for two +19 dBmV tone at input
mixer
3
and
≥50 kHz separation
Other input related
<–65 dBc at
≥30 kHz offset, for +29 dBmV
tone at input mixer
3
Residual responses
(input terminated and 0 dB attenuator)
1 MHz to 1.8 GHz
≤–38 dBmV
Display range
Log scale
0 to –70 dB from ref level is calibrated 0.1 to
20 dB/division in 1 dB steps
Linear scale
8 divisions
Scale units
dBm, dBmV, dBµV, V, W
Marker readout resolution
0.05 dB for log scale
0.05% of ref level for linear scale
Fast time sweeps for
zero span (not Option 701) 0.7% of ref level for linear scale
≤1GHz
Reference level
Range
Same as amplitude range
Resolution
0.01 dB for log scale
0.12% of ref level for linear scale
Accuracy
(referred to +29 dBmV ref level)
+49 to –10.9 dBmV
±(0.3 dB + 0.01 x dB from +29 dBmV)
Frequency response
Absolute
4
±1.5 dB
Relative flatness
5
±1.0 dB
Calibrator output
Frequency
300 MHz +(300 MHz x freq ref error
2
)
Amplitude
+28.75 dBmV +0.4 dB
1. Will not meet FCC frequency accuracy requirements with this time base
2. Frequency reference error = (aging rate x period of time since adjust-
ment + initial achievable accuracy + temperature stability)
3. Mixer power level (dBmV) = input power (dBmV) - input attenuation (dB)
4. Referred to 300 MHz CAL OUT, 10 dB input attenuation
5. Referred to midpoint between highest and lowest frequency response
deviations