HP 8901B Operation And Calibration Manual page 34

General Information
Model 8901B
Table
1-1.
Specifications (2
of
6)
AM
Accuracy
'2%
Of
reading
21 digit
Amplitude Modulation
RATES:
20
Hz to
10
kHz,
150
kHz Sf,<
10
MHz.
20 Hz to 100 kHz,
10
MHz 5fcl 1300 MHz.
DEPTH: to
99%.
ACCURACY3*
4* 5:
Frequency Range Rates Depths
150 kHz-10 MHz 50 Hz-10 kHz 5%-99%
FM Accuracy Frequency Range Rates
I
23%
of
reading
I
21 digit
Deviations
150 kHz-10 MHz
Flatness Frequency Range Rates
2 1 digit
90 Hz-10 kHz
*0.3% of reading MHz-1300 MHz
I
20 Hz-10 kHz
Depths
20%-80%
I
to 99%
I
<0.1%
I
"%
Of
reading
I
10 MHz-1300 MHz
I
50 Hz-50 kHz
I
5%-99%
I
21 digit
10 MHz-1300 MHz
20
Hz-100 kHZ <lo0 kHZ
I
+' %
Of
reading
I
10 MHz-1300 MHz
I
20 Hz-100 kHz
I
to
99%
I
2 1 digit
AM Rejection
Frequency Range Rates
<20
HZ
peak
deviation
150 kHz-1300 MHz
400 Hz
or
1 kHz
AM Depths
550%
DEMODULATED OUTPUT DISTORTION:
<0.3% THD for
550%
depth.
<O.S% THD for
595%
depth.
FM REJECTION
(50
Hz TO
3
kHz BW)4:
RESIDUAL AM
(50
HZ
to 3
kHz BW):
<O.Ol%,,,.
Maximum
Resolution
Supplemental Characteristics:
Maximum
Sensitivity
Demodulated Output Deviations
(4
F)
DETECTORS: +peak, -peak, kpeak/2, peak hold,
MAXIMUM DEPTH, RESOLUTION, A N D MAXIMUM
DEMODULATED OUTPUT SENSITIVITY ACROSS
A N OPEN CIRCUIT
(600Q
OUTPUT IMPEDANCE)':
average [rms sinewave calibrated), rms.
Maximum
Demodulated Output
Sensitivity
Maximum
Resolution
Depths
10 Hz
I
0.001
%
I
0.1
V/percent
AMrms<3.0%
1
(rms detector only)
4.0 kHz I
0.1 mV/Hz
dF,,,,c40 kHz
But not to exceed:
50
Hz to
40
kHz rates for stoted accuracy with rms
Peak residuals must be accounted for in peak readings.
For peak measurements only:
A M
accuracy may be affected b ! . distortion
generated by the Analyzer. In the worst case this distortion can decrease
accuracy by
0.1%
of reading for each
0.1%
of distortion.
6
Flatness is the variation in indicated
A M
depth for constant depth on
input signal.
'
For optimum flatness. cables should be terminated trith their choracteris-
tic impedonce.
detector.
1-20
0.1%
0.01%
I
0.01
V/percent
AMpeak?40. 0%
0.1
V/percent
AMpeak<40.0%
I
22'",10f~$lng
I
250 kHz-10 MHz
I
20
Hz-10 kHz
I
540 kHzpeak
I
1
I
I
+'%
Of
reading
10 MHz-1300 MHz
1
50 Hz-100 kHz
I
5400 kHZpeak
+l dlglt
I
1
HZ
0.1 Hz
(rms detector only)
I pr5Xadlng
2 1 dlglt
I
10 MHz-1300 MHz
I
20 Hz-200 kHz
I
5400
kHZpeak
1.0 mV/Hz AF,,,<4 kHz
1.0 mV/Hz 4(ms<0.3 kHz
For rms detector add 23%
of reading.
DEMODULATED OUTPUT DISTORTION8,
9:
I
THD
I
Frequency Range
I
Rates
I
Deviations
I
I
<0.1%
I
400 kHz-10 MHz
I
20 Hz-10 kHz
I
<lo
kHz
I
~ ~~
RESIDUAL FM
(50
Hz to
3
kHz BW):
<8
Hz,,, at
1300
MHz, decreasing linearly with
frequency to
<I
Hz,,, for
100
MHz and below.
Supplemental Characteristics:
MAXIMUM FM DEVIATION, RESOLUTION, AND
MAXIMUM DEMODULATED OUTPUT SENSITIVITY
ACROSS A N OPEN CIRCUIT
(600Q
OUTPUT
IMPEDANCEI7:
I
100 Hz
I
0.01 mV/Hz
I
aF,,,r40 kHz
Resolution is increased one digit with
750
ps
de-emphasis and pre-display on.
The demodulated output signal present at the
Modulation Out/Audio In connector is increased in
ampliiude by a factor of
10
with
750
ps
de-emphasis.
But not to exceed: 20 kHz rates and
40
kHz peak deviations with 750
j ~ s
de-emphasis filter.
1Vith
750
F S
de-emphasis and pre-display "off." distortion is not specified
for modulation outputs
>4V
peak. This condition can occur near maxi-
mum deviation for a measurement ronge. at rates
<2
kHz.