548 Chapter7
Language Reference
NRL Normalized Reference Level
The NRL command recalls the last calibration run. If one of the earlier
short or thru states has been recalled just before executing the NRL
command then the current and recalled states don't match and the
error occurs. To avoid this error, update the STORETHRU or
STORESHORT state register with the current state before turning
NRL on. The STORETHRU state register is state register 9. The
STORESHORT state register is state register 8. It is a good idea to take
a sweep (TS command) prior to saving the state using the SAVES 8 or
SAVES 9 command.
Parameters
number real from −100 to +100.
Preset State
0 dB
Query Response
Figure 7-197 NRL Query Response
Example
The following example is for use with an 8560E/EC Option 002.
10 OUTPUT 718;"IP;SNGLS;"
20 OUTPUT 718;"FA 300KHZ;FB 1GHZ;"
30 OUTPUT 718;"SRCPWR ON;"
40 OUTPUT 718;"SWPCPL SR;"
50 OUTPUT 718;"SRCTKPK;DONE?;"
60 ENTER 718;Done
70 PRINT "CONNECT THRU. PRESS CONTINUE WHEN READY TO STOR
E."
80 PAUSE
90 OUTPUT 718;"TS;DONE?;"
100 ENTER 718;Done
110 OUTPUT 718;"STORETHRU;"
120 OUTPUT 718;"TS;DONE?;"
130 ENTER 718;Done
140 OUTPUT 718;"NORMLIZE ON;"
150 OUTPUT 718;"TS;DONE?;"
160 ENTER 718;Done
170 OUTPUT 718;"NRPOS 5;TS;"
180 PRINT "RECONNECT DUT. PRESS CONTINUE WHEN READY."
190 PAUSE
200 OUTPUT 718;"NRL -10DB;"
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