NARDA 8718B User Manual

Page 56

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55

Chapter 8

Data Logging

A record contains a header and one or more data points.

To estimate the approximate number of data points and

records (logging runs) that can be stored with the

available memory ...

1. Allocate 33 bytes for each header. A separate header

is used for each record.

2. Allocate 7 bytes for each data point from Mode 1 and

Mode 3 logging.

3. Allocate 14 bytes for each for each spatially averaged

data point from Mode 2 logging. More memory is

used in this mode because both average and peak

values are stored.

4. Determine whether there is sufficient available memory

to perform the desired task. If there is, proceed with

logging as described above.

5. If you determine that there is insufficient memory to

perform the desired task because much of the meter’s

memory has been used, it will be necessary to empty

the memory. Press F4 (QUIT)

6. To download the current memory contents, you must

connect the 8718B to a computer. See Chapter 18,

User's Software.

A

I L A

L

B

O R Y

1 0

B A V A I

L , 1 5

B

k

k

S E D

M E N U

Q U I T

A

V

F1

F2

F3

F4

U

E M

E

M

3. Press F2 (MEM).
4. A screen will appear showing the approximate amount

of available memory and the amount of memory

already used. The bar graph is a rough indicator of

remaining memory capacity as a percentage of total

capacity.

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