General
Information
Electrical
Characteristics
SPECTRAL PURITY
(Cont'd)
Residual
FM
Band
10
(8642B only)
9
8
1-7
HET
Residual AM
Spurious Output Signals
Harmonics
Sub-harmonics
Non-harmonics
OUTPUT
Level Range
Maximum Level Available
Resolution
Absolute Level Accuracy4
Flatness
Impedance
SWR
Reverse
Power
Protection
Third Order Intermodulation
Available Calibration Units
3Not specified in HET
ba~d
Table
1-1.
Specifications
(2
of
6)
Performance
Limits
Post Detection Bandwidth
0.3 to 3.0 kHz 0.05
to
15.00 kHz
<5
Hz rms
<2
Hz rms
<1.2
Hz rms
<1 Hz rms
<3.5
Hz rms
<0.01%
AM rms
8642A/B,
Bands 1-9, HET
---.-~--
-30
dBc
-20
dBc
none
-100
dBc
3
<9
Hz rms
<5
Hz rms
<2
Hz rms
<1.2
Hz rms
<5
Hz rms
8642B,
Band 10
-25
dBc
-20
dBc
-45
dBc
-94
dBc
From Maximum Level Available to
-140
dBm
(0.023
f1.V
into
50
ohms)
+20
dBm (2.24V)
+19
dBm (2.00V)
+18
dBm (1.78V)
+17
dBm (1.59V)
+16
dBm (1.41V)
0.1
dB
-<:1
dB
<±0.75
dB
50
ohms nominal
<1.5:1
<2.0:1
50W,
25
Vdc, 8642A
25W, 50 Vdc, 8642B
<-50
dBc
at
+10
dBm. Typically
decreases 10
dB
for
every 5
dB
of
combined level decrease
dBm,
V,
mV,
!-lV,
dB!-lV, EMF
V,
EMF mV, EMF
!-lV,
dB
EMF }lV.
REL.
ZERO
or
REF SET can be
used
to
obtain settings such as
dBVor
dBf.
Model
8642A/B
Conditions
CW, AM,
or
Angle Modulation
:5V3
Maximum
Peak Deviation
0.3 to 3.0 kHz
Post Detection Bandwidth
Output level :5+10
dBm
Output level :5+ 16
dBm
>
10kHz
from the carrier
8642A (except
Opt. 003)
bands 1 thru
"1
DNA
band
8,
HET
n/a
band 9
8642B and
8642A Opt. 003
bands 1 thru 7
band 8
HET
band 9
band 10 (8642B)
Output levels
2:-127
dBm
Output level, + 10 dBm
Output levels
<0
dBm
Output levels
2:0
dBm
Two
signal generators with frequen-
cies spaced
25
kHz
apart
into a
resistive combiner
4Absolute output accuracy consists
of
allowances for detector linearity, temperature, flatness, and attenuator accuracy.
1-
8