HP 8590 E & L Series Spectrum Analyzers and HP 8591C Cable TV ...

AMBPL
Trace A Minus Trace B Plus Display Line
Subtracts trace B from trace A, adds the display line value to the difference, and sends the
result to trace A during every sweep of the spectrum analyzer.
Syntax
Equivalent Softkey: NORMLIZE ON OFF .
Preset State: AMBPL OFF.
Related Commands: ADD, AMB, CONTS, CLRW, DL, MXMH, SNGLS, SUB, TS, VAVG, VIEW.
Restrictions: Not compatible with Analog+ display mode. See “ANLGPLUS” for more
information.
Example
10 OUTPUT 718;"IP;SNGLS;RL 20DB;"
20 OUTPUT 718;"MOV TRA,5000;"
30 OUTPUT 718;"VIEW TRA;"
40 OUTPUT 718;"MOV TRB,4000;"
50 OUTPUT 718;"VIEW TRB;"
60 OUTPUT 718;"DL ODM;”
70 OUTPUT 718;"AMBPL ON;"
80 OUTPUT 718;"BLANK TRB;VIEW TRA;"
90 END
5-60 Programming Commands
OFF
ON
/
Initializes spectrum analym activates singlesweep
mode.
Sets trace A to 5000 meoxurement units, which
is equal to -10 dBm.
Sets trace B to 4000 measurement units, which
is equal to -20 dBm.
Sets display line to 0 dBm, which is at 6000
measurement units.
&forms trace A - trace B + display line. The
result is 5000 - 4000 + 6000 = 7000 or 10 dBm.
Note that this has resulted in a subtraction of
amplitude in dBm, -10 dBm -(-20 dBm) = 10
dBm.