HP (Hewlett-Packard) HP 83620A Vacuum Cleaner User Manual


 
Internal Pulse Generator
Width Range: 1 ps to 65 ms
Period Range: 2 ps to 65 ms
Resolution: 1 ps
AM and Scan
Bandwidth (3 dB, 30% depth, modulation peaks 3 dB below
maximum rated power):
DC to 100 kHz (typically DC to 300 kHz)
Modulation Depth
(ALC levels noted, can be offset using step attenuator)
Normal Mode: -20
dBm
to 1 dB below maximum available power
Deep Mode
I39
15.
50 dB below maximum available power
.
Unleveled
Mode14r
15:
50 dB below maximum available power
Sensitivity
Linear: lOO%/volt
Accuracy (1 kHz rate, 30% depth, normal mode): 5%
Exponential: 10 dB/volt
Accuracy (Normal Mode): 0.25
dB
f5%
of depth in dB
Incidental Phase Modulation (30% depth): 0.2 radians peak, typical
Incidental FM: Incidental phase modulation x modulation rate
Typical AM Distortion
(ALC level
OdBm,
Carriers
r20GHz)
5
4
G-
3
?2
c
1
0
I
N’xrnDi
Mode
-
Deep
Mode
-
-
-
-
1
OOkHz
Rate
/
1kHz
Rate
I
I
I I
I
I
I
0
20 40 60
AM Depth
(%)
80
100
I3
Deep mode offers reduced distortion for very deep AM. Waveform is DC-coupled and
feedback-leveled at ALC levels above -13 dBm. At ALC levels below -13 dBm, output
is DC-controllable, but subject to typical sample-and-hold drift of 0.25
dB/second.
I4
The HP 8360 has two unleveled modes, ALC off and search. In ALC off mode, the
modulator drive can be controlled from the front panel to vary quiescent RF output
level. In search mode, the instrument microprocessor momentarily closes the ALC loop
to find the modulator drive setting necessary to make the quiescent RF output level
equal to an entered value, then opens the ALC loop while maintaining that modulator
drive setting. Neither of these modes is feedback leveled.
l5
Modulation depth is 40 dB below maximum available power for frequencies > 20 GHz
on HP 83640A and HP
83650A.
Specifications
2c-11