9-3 OPERATING TIME
DOMAIN To operate in the time domain mode, press the Domain key (below). A
domain menu (Figure 9-10) lets you select the frequency- or time-do-
main modes by simple cursor selection. The 37xxxE defaults to the fre-
quency domain.
Select time or distance for the horizontal axis. The 37xxxE defaults to
time axis.
NOTE
If you select distance, be sure to set the dielectric constant
in the Reference Delay menu (Figure 9-11).

OPERATING TIME DOMAIN TIME DOMAIN

9-8 37xxxE OM

Figure 9-10. Domain Menu
DOMAIN
FREQUENCY
FREQUENCY
WITH TIME
GATE
TIME
LOWPASS MODE
TIME
BANDPASS
MODE
DISPLAY
TIME/DISTANCE
SET RANGE
SET GATE
GATE ON/OFF
HELP
PRESS <ENTER>
TO SELECT
OR SWITCH
DOMAIN
FREQUENCY
FREQUENCY
WITH TIME
GATE
TIME
LOWPASS MODE
TIME
BANDPASS
MODE
DISPLAY
TIME/DISTANCE
SET RANGE
SET GATE
GATE ON/OFF
HELP
PRESS <ENTER>
TO SELECT
OR SWITCH
DOMAIN
FREQUENCY
FREQUENCY
WITH TIME
GATE
TIME
LOWPASS MODE
TIME
BANDPASS MODE
DISPLAY
TIME/DISTANCE
SET RANGE
SET GATE
GATE ON/OFF
HELP
PRESS <ENTER>
TO SELECT
OR SWITCH
Figure 9-11. Reference Delay
Menu
SET
DIELECTRIC
CONSTANT
AIR
(1.000649)
POLYETHYLENE
(2.26)
TEFLON
(2.10)
MICROPOROUS
TEFLON
(1.69)
OTHER
XXXX.XX
PRESS <ENTER>
TO SELECT
.-
Measurement
Enhancement
Channels
Display
Domain