Sensors & Software pulseEKKO Product Manual page 123

Press the + and – buttons to toggle between Normal and High. Selecting High will double the
sample points if you need to have higher resolution of the reflected wave. Note that this also
increases data volume and may slow down data collection.
It is rare for the user to change this value, unless they have specific requirements.
The following table displays recommended temporal sampling interval for different frequencies:
6.1.5 Stacks
In noisy environments, one way to improve the signal to noise ratio is to collect more than one
trace at each position, average them, and then record the average trace; this is known as
Figure 6-6: Setting the Sampling Interval
Center Frequency
(MHz)
12.5
25
50
100
200
250
500
1000
111
Recommended
Sampling Interval (ps)
6400
3200
1600
800
400
400
200
100
System Configuration