692xxA - 1.26, 693xxA - 1.35, 690x5A - 1.21, 691x5A - 1.24, 692x5A - 1.24,
693x5A - 1.31
Con tact your near est Anritsu Ser vice Cen ter for a firm ware up grade if
nec es sary.
5-13 POWER vs. TIME
MODE
The ML2400A Se ries Power vs. Time mode is a graph i cal chart dis play of one
of the dis play chan nels, as se lected in the
SYSTEM|PWRvsTIME menu. The
trig ger ing setup is as set for Read out mode op er a tion.
Power vs. Time mode pro vides a chart dis play on a timed ba sis where the x-
axis of the graph is de fined in units of time. The user spe cifies the sweep pe -
riod and, within this sweep pe riod, each pixel de picts all the meas ure ments
taken within a 200th of the sweep pe riod.
The data can be dis played as a max i mum value only, a min i mum value only,
max i mum and min i mum val ues, the av er age of all the read ings dur ing the
time slot pe riod, or the lat est mea sured value. These dis play modes are se -
lected in the
SYSTEM|PwrVsTime menu, DATA HOLD rep re sen ta tion. Mea -
sure ment setup, i.e., trig ger, etc., is se lected the same way as in Read out mode.
The min i mum sweep time is 1 min ute, and the max i mum sweep time is 24
hours.
5-14 USER CAL
FACTORS
All MA24XXA Power Sen sors have an in ter nal EE PROM con taining cor rec tion
and calibration fac tors pro grammed into the sen sor at the fac tory. This “cal
fac tor” data is used when the power me ter is set up to use fre quency or volts
per GHz cali bra tion fac tors. The cor rec tion is in line ar ity (across the dy namic
range) and sen si tiv ity (across fre quency).
The ML2400A Se ries has the ca pa bil ity to de fine sets of cali bra tion fac tor data
and store them in the sen sor. A us er -de fined cal fac tor ta ble can be used on its
own, or in con junc tion with the fac to ry -de fined cal fac tor ta ble. Line ar ity cor -
rec tion is not af fected pro vided the me ter cal fac tor fre quency is set correctly.
De pending on the amount of fac tory cal i bra tion data stored in the sen sor, there
can be up to 10 user-defined cal fac tor ta bles. A “user” cal fac tor ta ble con sists
of up to 90 fre quency/cal fac tor data pairs for sen sors up to 40 GHz or 110 fre -
quency/cal fac tor data pairs for sen sors up to 50 GHz, plus a 7-character iden -
tity text string. User cal fac tor ta bles are fully in ter po lated, and can be used to
ap ply cor rec tion for attenuators placed in front of the sen sor. In this sit u a tion,
ML2400A OM 5-19
PROCEDURES POWER vs. TIME MODE
NOTE
This fea ture is also
avail able when us ing
Anritsu MA4700A/
MA4600A sen sors with
the Anritsu MA2499B
Sen sor Adapter. Since
the MA4700A/
MA4600A sen sors do
not con tain an
EEPROM, the user cal
fac tors are stored in the
MA2499B adapter
EEPROM.
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