Atec HP-Agilent-8904A - Manual (Page 4)

Complex signal generation
By adding three more internal synthe-
sizers (two with Option 002) which can
modulate or be summed with synthe-
sizer A (channel A), Option 001 is the
key to complex signal generation for
the Agilent 8904A Multifunction Syn-
thesizer. All four internal synthesizers
can be set to generate different wave-
forms, frequencies, amplitudes, and
phases at the same time. These signals
can then be DIGITALLY summed before
routing to the output. If Option 002 is
present, channels may be routed to
either of the two outputs. In addition
to summing, Option 001 allows chan-
nels B, C, and D to be used as modula-
tion sources for channel A. The allow-
able modulation types for channel A
are: AM, FM,
f M, DSBSC (Double
Sideband Suppressed Carrier), and
pulse modulation. Channels B, C, and
D can be used to generate up to three
independent forms of modulation at
the same time, or can be summed prior
to channel A modulation. Using sum-
mation and modulation, the 8904A
Option 001 can generate many complex
waveforms.
4
Then add two more . . . and sum . . . and modulate . . .
AM FM F M DSB Pulse
Output 1
Output 2
With Option 002, two units provide four
independent outputs in one full width rack
space.
CHANNEL B
CHANNEL C
CHANNEL D
S
Option 001 adds three internal synthesizers
(two in conjunction with Option 002) which
can modulate or be summed with channel A.
CHANNEL A