Agilent Technologies HP 83711A - Page 55

Generating
Signals
with
the
Synthesizer
To
Use External
Diode Detector
Leveling
5.
A
djust
the
synthesizer
output
power
so that
the desired
power at
the
output
is
attained.
F
or
example
,
assume
that
you
are
using
apower
splitter and
you want
0
5
dBm
at
the
output
of
the splitter
.In
this case
,
you
must
set
the
power
at
the
output
to
0
5
dBm. P
erform the
following procedure
to
set
the
power
at
the
output
to
0
5dBm.
a.
T
emporarily
connect
the
power meter
and sensor
at the
output.
b.
Press the
4
PO
WER
LEVEL
5
key.
c.
Rotate the
knob until
the power
meter reads
0
5
dBm
(disregard
the
synthesizer
power
level
reading).
d.
Disconnect
the
power
meter
and
sensor
from
the
output
and
connect
the
device under
test
(DUT).
Notes
1.
When
the
4
EXT
DIODE
5
ke
y
is
pressed,
the
synthesizer
output
power
might
change
.
Therefore
,
you
might
want
to
check
the
output
power
and
readjust
if
necessary
.
2.
External
diode
detector
leveling
does
not
provide
temperature compensation,
thus,
output
level
recalibration
might
be
required
in
environments
that
are
not temperature
stabilized.
3.
External
diode
detector
leveling
does
not
provide
proper compensation
from square
law
to
linear
regions
of
the
detector
.
Therefore
,
power
level changes
may
require
output
level
recalibration.
3-9