Φm Source; Φm Start Rate - Agilent Technologies E8241A User Manual

ΦM Source
Supported
Use this softkey to access a menu of choices that enables you to select either an
internally generated or an externally applied modulation input for the phase modulation
source. The internal modulation is always ac-coupled. For externally applied signals, you
can choose between ac- and dc-coupled modulation.
Preset
Choices
Location
Remarks
ΦM Start Rate
Supported
This softkey enables you to change the starting frequency of the internally generated
modulation source for swept-sine phase modulation.
Preset
Range
Location
Remarks
Chapter 5
PSG-A Series
Internal 1
Internal 1 Internal 2
Page 237
A 1.0 volt peak voltage input is required for calibrated ΦM deviation
settings. The EXT 1 LO/HI and EXT 2 LO/HI display annunciators will
turn on if the peak input voltage differs from 1.0 by more than 3%.
(The LO/HI annunciators function only for ac-coupled external inputs.)
PSG-A Series
400.0 Hz
0.5 Hz−1 MHz (minimum increment allowed is 0.5 Hz)
Page 238
This softkey is coupled to the
ΦM Tone 1 Rate
and the
set for ΦM Start Rate is reflected in the
softkeys.
Ext1
ΦM Rate
softkey in the initial AM menu
softkey in the ΦM Dual-Sine menu. Any value
ΦM Rate
Key Reference
Symbols
Ext2
ΦM Tone 1 Rate
and
95