GW Instek GSP-830 User Manual - Manual (Page 128)

GSP-830 User Manual
128
3. Press F2 (Self Test).
Self Test... F 2
4. The GPIB result appears at F1.
If the result is Fail (underlined),
contact service personnel.
GPIB
Pass Fail
F 1
GPIB constraints
Keep these rules when using the GPIB interface.
•
Altogether less than 15 devices & 20m cable length,
2m between each device on the bus
•
Unique address assigned to each device
•
At least 2/3 of the GPIB devices turned on
•
No loop or parallel structure allowed
View System Information
View system error
Panel operation View the bottom of the screen, the error message area.
If there is a system error, the message appears in red.
Center : 1.5GHz (EXT Unlock)
EXT
Unlock
Amp
Uncal
•
Inappropriate RBW or VBW is selected.
•
Frequency is less than 15MHz and
amplitude is less than −30dBm.
EXT
Unlock
External reference input is not working
properly.
LO1
Unlock
Local oscillator 1 is not working properly.
LO3
Unlock
Local oscillator 3 is not working properly.
Med
Unlock
± 1ppm stability signal is not working
properly. Appears only when the optional
±
1ppm Stability Module is installed.
Ref
Unlock
Internal reference signal is not working
properly.