10
Calibrating
Calibrating Outputs
1.
Select Options > Calibrate > Reset to set the generator’s
calibration factors to default nominal values.
2.
Press Options > Calibrate > Full Scale.
3.
Set the voltmeter’s scale factor to be able to measure a nominal
1000 millivolts DC.
4.
Using a VGA-to-BNC cable, connect the generator’s red output to
the positive input on the voltmeter, with a 75 ohm (+/- 1%) input
terminator. Connect the negative lead of the meter to any ground
pin.
5.
Select
R_FS+
or
-R_FS
to set the DC output level to 1000 mV
+/- 3 mV.
6.
Repeat steps 4 and 5 for the green and blue outputs.
7.
Select Save.
8.
Select Options > Calibrate > Zero.
9.
Connect the red output to the positive input of the voltmeter.
10. Select
or
-R_Zero
to set the DC output level to 0 mV +/- 3 mV.
11. Repeat steps 9 and 10 for the green and blue components.
12. Select Save.
13. Select Options > NTSC_CAL.
14. Adjust the oscilloscope's timebase and sweep trigger to view the entire waveform. Adjust the
G_NTSC so that its chrominance is 100 IRE or 714mV.
15. Using a vector scope, use the
R_NTSC
and
B_NTSC
options to adjust the red and green outputs
using so that their signals align with the 2% boxes.
16. Press Save.
Note: The modulated RF output does not have any calibration settings.
_____
Calibrate
_
_
Full
_
Scale
____
Zero
_
Reset
_
R_FS+
_____ ___
-R_FS
_
G_FS+
_______ _
-G_FS
_
B_FS+
_______ _
-B_FS
_
Save
_________ _
Back
_
____
-R_Zero
_
____
-G_Zero
_
____
-B_Zero
_
Save
__________
Back
