Creating Flat Limit Lines - HP 8753E User Manual

4. Reconnect your test device.
5. To better view the measurement trace, press:
S c a l e R e f
... ;:: /,,,,, i . . . . . . . . . .. ... 1 :$?&% :

Creating Flat Limit Lines

In this example procedure, the following flat Iimit Iine values are set:
Frequency Range ................................................................. Power Range
127 MHz to 140 MHz .......................................................... -27 dF3 to -21 dB
100 MHz to 123 MHz ......................................................... -200 dB to -65 dII
146 MHz to 160 MHz ......................................................... -200 dE3 to -65 dB
The minimum value for measured data is -200 dR.
Note
To access the Iimits menu and activate the Iimit lines, press:
1.
. . . . _ . . . . . . . . ii . : . . . . . . . . , . , . . . ; , , . ; ; > z : . . . . . / . : : : : . . : . : : : & . : : . : : . . . / / . . . . . . . . . . ; . : . . . . . . > . > . . . . . . . . . . >a; ; . . . . . . , . . , . , . . . . . . . . . , , , . . . . . . . . . . , . . . . . . . . , . , , , , , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L/ . . . . . . . . A . . . . . . . . . . . . . . . . . .
To create a new Iimit line, press:
2.
The analyzer generates a new segment that appears on the center of the display.
To specify the limit's stimuhis value, test limits (upper and lower), and the Iimit type, press:
3.
../.............
Note
: :.::::::::;..:::I:::.:.:.::..::::
This would correspond to a test specification of -24 f3 dEX
, : . . , ii . . . . . . A . ..u . . . . . . . . . .:a
Making Measurements 247