Anritsu 682XXB - Manual (Page 145)

e. When the DAC has been adjusted, press
Q
on
the keyboard to exit the program. (If the in-
strument has a Down Converter installed, you
will be returned to the start of the program to
perform this calibration for frequencies of
>2 GHz.)
When the DAC has been completely adjusted,
the program will exit to the
$
prompt.
e. Record step completion on the Test Record.
3. Perform Log AM calibration as follows:
a. At the
$
prompt, type:
calterm 113
and
press <ENTER>.
b. Set the function generator’s output ±0.20 volts.
Use the COMPL button to toggle the output
between –0.20 volts and +0.20 volts.
c. On the computer keyboard, use 1, 2, or 3 to in-
crement and 8, 9, and 0 to decrement the value
of the DAC’s setting to obtain a 10.00 dB differ-
ence in the power meter’s reading when the
function generator’s output is toggled.
d. When the DAC has been adjusted, press
Q
on
the keyboard to exit the program. (If the in-
strument has a Down Converter installed, you
will be returned to the start of the program to
perform this calibration for frequencies of
>2 GHz.)
When the DAC has been completely adjusted,
the program will exit to the
$
prompt.
e. Record step completion on the Test Record.
4. Perform AM Meter calibration as follows:
a. At the
$
prompt, type:
calterm 147
and
press <ENTER>.
b. Set up the Function Generator for a 1 kHz
sinewave with an output level of 0.354 volts
RMS (1 volt peak to peak). When done, press
any key on the keyboard to continue calibra-
tion.
The
$
prompt will appear on the screen when
the calibration is complete.
c. Record step completion on the Test Record.
682XXB/683XXB MM 4-35
AM
CALIBRATION CALIBRATION
NOTE
To save the calibration data after
completing any calibration step,
type:
calterm 787
and press
<ENTER>.