HP 8753E manual ~~,~~~~~~~, Label Standard Menu

: ;,.*'p..;;..'..:'~ ',,;. ../ .'".

~~~~~~~:~~~~~~. allows you to specify energy loss, due to skin effect, along a one-way length of

. T .,......... .::.A....s.............../.::.........

coax offset. The value of loss is entered as ohms/nanosecond (or Giga ohms/second) at 1 GHz. (Such losses are negligible in waveguide, so enter 0 as the loss offset.)

~&‘?lW&~;~@~. allows you to specify the characteristic impedance of the coax offset. (Note:
..i _..............;	/

This is not the impedance of the standard itself.) For waveguide, the offset impedance as

well as the system ZO must always be set to 10. ; i

~:~~~~~~~~~~~~’ allows you to define the lowest frequency at which the standard s>:<.: ../.. :..::...;~.::..: /..~~~~~.:,~.~.:.:..;” ,... ::..- ...::. .: ...;..:.& ....::..<.:<...: ........ ...;,>:. can be used during measurement calibration. In waveguide, this must be the lower cutoff

frequency of the standard, so that the analyzer can calculate dispersive effects correctly (see
ii : ;, ,/“;:;yw:y	,,:~;;~;”	,ii.
~~~~~~~~~			above).
,:p,.:.<,.:.; .. .,		::	., ., ;:;.:.:.+..:.:.: _:	allows you to deilne the highest frequency at which the standard can
~~,~~~~~~~
i :..;....;.;.~..~~~. ........~~	::.;;...i.. .A....	A.._ I.	..u.i i.....i...	.

be used during measurement calibration. In waveguide, this is normally the upper cutoff frequency of the standard.

~~~ defines the s-&d (and the offset) pi co&~. ‘I&is causes the analyzer to ame i;;;...........:...;..:;:,.ilL,.,,

linear phase response in any offsets.

. . . . . . . . . . . . . . . . . . . . . .,..,...... .....

~~~~~~ defines the standard (and the offset) as rectangular waveguide. This causes the 7:

Label Standard Menu

This menu allows you to label (reference) individual standards during the menu-driven measurement cahbration sequence. The labels are user-de&table using a character set shown on the display that includes letters, numbers, and some symbols, and they may be up to ten characters long. The analyzer will prompt you to connect standards using these labels, so they should be meaningfuI to you, and distinct for each standard.

By convention, when sexed connector standards are labeled male (m) or female (f), the designation refers to the test port connector sex, not the connector sex of the standard.

Specify Class Menu

Once a standard has been defined, it must be assigned to a standard “class.” This is a group of from one to seven standards that is required to calibrate for a single error term. The standards within a single class can be assigned to the locations listed in ‘Ihble 6-6 according to their standard reference numbers.

A class often consists of a single standard, but may be composed of more than one standard if band-limited standards are used. For example, if there were two load standards - a fixed load for low frequencies, and a sliding load for high frequencies - then that class would have two standards.

6-88 Application and Operation Concepts