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Setting the reference
is
done
by
setting the
parameter
to the
desired
value
and
then enabling
the
relative
mode
for that
parameter. This causes
the
REL
indicator to
light
and
the
displayed
value
to
be
zero
in
the
corresponding
display.
The
Generator output does
not
change
during
these operations. In the
relative
mode,
the usual
means
of
changing
the
parameter
may
be
used;
i.e,,
Function,
Step, or Bright-Digit
Edit Entry.
In
the
relative
frequency
mode,
the actual
frequency
is
the
sum
of
the reference
and
the
displayed frequency.
The
actual
frequency
may
be
displayed
by
pressing
the
[FREQ]
key.
If
the
10/
20
Hz
frequency
resolution
boundary
is
crossed using the step or
edit
functions while
in
the
relative
frequency
mode,
a
10-Hz rounding
quantity
may
be
applied
to the displayed
frequency.
In
the
relative
amplitude
mode,
the actual
amplitude
is
the
sum
of the reference
and
the
displayed
amplitude
when
the reference
and
the displayed quantities
have
the
same
units.
However,
with
mixed
units (volts
and
dB), the
actual
amplitude
is
the voltage value
scaled
by
the
dB
value.
The
actual
amplitude
may
be displayed by pressing
the
[AMPL]
key.
Command
Syntax:
Select
Relative
Function
—
Enable
or Disable
Summary:
COMMAND
NOTE
Frequency
Local:
CSPCL3 ZZl
—
CO] or
C13
1
Remote: "SP" "2"
—
"0" or "1"
1
Amplitude
Local:
CSPCL3
C33
—
C03 or
C13
1
Remote: "SP" "3"
—
"0"
or
"1"
1
Example:
Set
the
amplitude
to -15
dBV;
i.e.,
15
dB
below
1
volt.
Local:
CAMPL3
C13
CMHzlW
CSPCL3
C33
C13
CAMPL3
C"3
C13
C53
CdB(m)3
Remote;
"AP1V^SP31,AP"15D8"
Note:
1.
I
enables
the
relative
function; 0 disables the
relative
function.
Related Operations:
Amplitude and Frequency Entry
Bright-Digit Edit
Entry
Step Entry
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