Tdr Rate Automatic - HP 54753A User Manual

for normalization and reference plane calculations can be stored to and re-
loaded from disk. (See the Disk Menu chapter in the HP 83480A, HP 54750
User's Guide for more information.)
The reference plane must be established before ohm, % reflect or gain units are
selectable for the channel. Also, the Reference ref plane function is not
available in the Marker menu.
The function steps you through the normalization and reference plane
procedure for the selected measurement type. The procedure steps are
displayed at the top of the screen. The items required for calibration are shown
in Table 5-6.
Table 5-6
Establish normalization & ref plane Hardware Requirements
Measurement
TDR
TDT
Key Path TDR/TDT Setup Normalize response . . . Establish normalization & ref plane . . .
TDR rate automatic . . . (250 kHz)
The TDR rate automatic . . . (250 kHz) function allows you to manually or
automatically select the repetition rate of the TDR step. The range of values
for manual mode selection are from 50 Hz to 250 kHz repetition rate using a
1-2-5 sequence. When this function is set to automatic, the TDR step repetition
The normalization filter values and reference plane are invalidate when the
timebase scale, record length or channel bandwidth is changed. Also, the
normalization process will not be able to remove small synchronous noise in the
channels baseline if the timebase position is changed. For most measurements
this error is very small..
Requirements
50 ohm 3.5 mm SMA terminator
3.5 mm SMA short
1 or 2 each 3.5 mm SMA cables
3.5 mm barrel connector
HP 54754A TDR/TDT Setup Menu
TDR rate automatic . . . (250 kHz)
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