Agilent Technologies E8257C PSG Specifiche Scaricare il pdf (Pagina 12)

1. Press {More (1 of 2)} > {User Flatness} > This opens the user flatness table editor and

{Configure Cal Array}. places the cursor over the frequency value (1 GHz)

for row 1. The RF output changes to the frequency

value of the table row containing the cursor and

1.000 000 000 00 is displayed the AMPLITUDE area

of the display.

2. Observe and record the measured value

from the power meter.

3. Subtract the measured value from 0 dBm.

4. Move the table cursor over the correction

value in row 1.

5. Press {Edit Item} > [enter the difference The signal generator adjusts the RF output

value from Step 3] > {dB}. amplitude based on the correction value entered.

6. Repeat Steps 2 through 5 until the power

meter reads 0 dBm.

7. Use the down arrow key to place the cursor over

the frequency value for the next row. The RF output

changes to the frequency value of the table row

containing the cursor, as shown in the AMPLITUDE

area of the display.

8. Repeat Steps 2 through 7 for every entry in

the User Flatness table.

1. Press {Load/Store}.

2. Press {Store to File}.

3. Enter the file name FLATCAL1 using the

alphanumeric soft keys and the numeric keypad.

4. Press {Enter}. The user flatness correction array file FLATCAL1 is

now stored in the memory catalog as a UFLT file.

Performing the user flatness

correction manually

If you are not using an Agilent

E4416A/17A/18A/19A power meter

or if you do not have GPIB interface

capability, you can perform the

user flatness correction manually.

Complete the steps in this section

and then continue with the User

Flatness Correction tutorial.

Save the user flatness correction

data to the memory catalog

This process allows you to save the

user flatness correction data as a

file in the signal generator’s memory

catalog. With several user flatness

correction files saved to the memory

catalog, specific files can be

recalled, loaded into the correction

array, and applied to the RF output

to satisfy specific RF output flatness

requirements.

1. Press [Return] > [Return] > {Flatness Off On}. This applies the user flatness correction array to

the RF output. The UF indicator is activated in the

AMPLITUDE section of the signal generator’s

display and the frequency correction data

contained in the correction array is applied to the

RF output amplitude.

Applying a user flatness

correction arrays

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Agilent Technologies E8257C PSG Specifiche Pagina 12

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