Atec Agilent-8901A - Manual (Page 2)

2
Demodulated Output Distortion: <0.3% THD for
≤
50% depth, <0.6% THD for
≤
95% depth.
FM Rejection (at 400 Hz and 1 kHz rates, 50 Hz
to 3 kHz BW): 2
250 kHz to 10 MHz: <0.2% AM for <5 kHz
peak
deviation.
10 MHz to 1300 MHz: <0.2% AM for <50 kHz
peak
deviation.
Residual AM (50 Hz to 3 kHz BW): <0.01%
rms
.
Supplemental Characteristics
Maximum Depth Resolution:
0.01% for depths
≤
39.99%.
0.1% for depths
≥
40%.
Detectors: peak [+ peak], trough [
−
peak],
average (rms sine wave calibrated).
Demodulated Output Across an Open Circuit
(600
Ω
output impedance): 4
0.1 V/percent when resolution is 0.01%.
0.01 V/percent when resolution is 0.1%.
Frequency Counter
Range: 150 kHz to 1300 MHz.
Sensitivity :
150 kHz to 650 MHz: 12 mV
rms
(
−
25 dBm).
650 MHz to 1300 MHz: 22 mV
rms
(
−
20 dBm).
Accuracy: Reference accuracy ±3 counts of least
significant digit.
Internal Reference:
Frequency: 10 MHz.
Aging Rate: <1x10
− 6 /month.
(Optional: <1x10
− 9 /day) 6 .
Supplemental Characteristics
Modes: Frequency, and frequency error (displays
the difference between the frequency entered
via the keyboard and the actual RF input
frequency).
Sensitivity in Manual Tuning Mode: Approximate
frequency must be entered from keyboard.
0.22 mV
rms
(
−
60 dBm).
Maximum Resolution:
10 Hz for frequencies <1 GHz.
100 Hz for frequencies
≥
1 GHz.
Internal Reference Accuracy: Overall accuracy
is a function of time base calibration ± aging
rate ± temperature effects ± line voltage effects
± short term stability.
2 Peak residuals must be accounted for in peak readings.
4 For optimum flatness, cables should be terminated with their
characteristic impedance.
5 For peak measurements only, AM accuracy may be affected by
distortion generated by the modulation analyzer. In the worst
case this can decrease accuracy by 0.1% of reading for each 0.1%
of distortion
6 After 30-day warm-up
Standard Option 002
Aging Rate <1 x 10 -6 /mo. <1 x 10 -9 /day
Temperature Effects <2 x 10 -7 /° C <2 x 10 -10 /° C
Line Voltage Effects <1 x 10 -6 <6 x 10 -10
(+5%,
−
10% line
voltage change)
Short term stability — <1 x 10 -9 for 1s average
Accuracy: 2 ±3% of reading ±1 digit.
Demodulated Output Distortion: <0.1% THD.
AM Rejection (for 50% AM at 1 kHz rates): 2
<0.03 radians, peak deviation.
Supplemental Characteristics
Modulation Rates: Usable from 20 Hz to 100 kHz
with degraded performance.
Detectors: + peak,
−
peak, average (rms sine wave
calibrated).
Demodulated Output across an Open Circuit
(600
Ω
output impedance): 4
1 V/rad when resolution is 0.001 radian.
0.1 V/rad when resolution is 0.01 radian.
0.01 V/rad when resolution is 0.1 radian.
Amplitude Modulation
Rates:
150 kHz to 10 MHz: 20 Hz to 10 kHz.
10 MHz to 1300 MHz: 20 Hz to 100 kHz.
Depth: to 99%.
Accuracy: 2, 5
150 kHz to 10 MHz: ±2% of reading ±1 digit,
50 Hz to 10 kHz rates, >5% depth.
±3% of reading ±1 digit, 20 Hz to 10 kHz rates.
10 MHz to 1300 MHz: ±1% of reading ±1 digit,
50 Hz to 50 kHz rates, >5% depth.
±3% of reading ±1 digit, 20 Hz to 100 kHz rates.
Flatness (variation in indicated AM depth for
constant depth on input signal):
10 MHz to 1300 MHz: ±0.3% of reading ±1 digit,
90 Hz to 10 kHz rates, 20 to 80% depth.
Deviation and Maximum Resolution:
0.1 Radian
Resolution
0.01 Radian
Resolution
0.001 Radian
Resolution
400
40
4
200 Hz 1 kHz 10 kHz 20 kHz
Modulation rate
Peak phase deviation (radians)