HP 8753E manual Creating Flat Limit Lines

4.Reconnect your test device.

5.To better view the measurement trace, press:

........ .: ““:......:.::.:: ....... ::... ..::

I-,@g@$f : !<

S c a l e R e f : ....; 1 :$?&% :

..... ;:: /,,,,, i......... ..

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		-27dF3 to -21 dB
100	MHz to 123	MHz	-200dB to -65 dII
146	MHz to 160	MHz	-200dE3 to -65 dB
Note	The minimum value for measured data is -200 dR.

1. To access the Iimits menu and activate the Iimit lines, press:
“:.~:.:...:	~.. . .	,:,::,: ,:;; .“.< ‘.“....:.~.~,..)) ..	:.:.:...: (,:,,,,,. .,:,;	<<<.y <<:. :<<:.	/ I	; ..,.,.,..,..,.,.,.,., ,. .,. .,..,..._,. ,.,......,.,,:I..,......, , * ,. /,. ,		!gg$j
csystem_) ~~~~~~~~:~;~~		~~~~~~~~:~~~~~			,EIJJ;~~,:~~~~~,~~~~~~~~~’		~~~~~~~~~~~
...._........ii.:........,.,.. .;,,.;;>z:	/.::::..: .::: &.::.::...//......... .;.:......>.>		>a;;	,..,.........,,,..........,	,.,,,,,	.................. L/........A	:::;:...i i. ;.....~.::...iii.i;::.:: .::::.::	.~.~.~.~_; i.z

2.To create a new Iimitline, press:

g& :... ..........

The analyzer generates a new segment that appears on the center of the display.

3.To specify thelimit’s stimuhis value, test limits (upper and lower), and the Iimit type, press:

:~~~~~~~~~~~~~~~ pJ @JJ :.:,..l.~...l,~~;;:~~;~:.::e .,.,.z,;;,,,,,,.;;;..............,.......;;zc.i::;;:....../.............::.;..,. >;,.; ..:

~~~~~~~~ 1--21_) Ixl)

~~~~~~~ @-j @

~.~~~-“-‘:::::~:=::::~~~~”

., :.:

Note	you codd alsO set the upper md lower limits by using the ~~~~~~~~~ md
	,.,,...,,...,,...	..,.,.,.,.,.,.i_,.	:.:....<.A;..;: ..,.....:...........A.......A...z.A..i	.U..?.....T
	~~~~~~~~~~ keys. m use these keys for the entry, press:
	i
	"""""""""" 1--24_) @
	;:.. . .We.,/,,..,,,,,..,,,,................~	.::_.................::.:...:.:...
	::::::::::::::::::::::::::::::::::::::::		@ Lxl]
	:.,...........:.::::::::;..:::I:::.:.:.::..:::: ,:.. ......,ii A...u..........:a

This would correspond to a test specification of -24 f3 dEX

Making Measurements 247