HP 8360 User Handbook Manual page 465

AM and Scan
5-6
Internal Pulse Generator
Width Range: 1 ps to 65 ms
Period Range: 2 ps to 65 ms
Resolution: 1 ps
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 I37 15. 50 dB below maximum available power .
Unleveled Model*1 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
Incidental FM:
Incidental phase modulation x modulation rate
( A L C l e v e l OdBm, C a r r i e r s r20GHz)
5
4 - - Deep Mode - - - -
3 - -
R
- - 1 OOkH
1 - -
0
0
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.
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.
on HP 83640A and HP 83650A.
(30% depth): 0.2 radians peak, typical
T y p i c a l A M D i s t o r t i o n
z R a t e /
Rate
I I
I I
40 60
A M D e p t h (%)
I
80
1 0 0
HP 8360
User's Handbook