User`s guide

33
To Test Bandwidth
12
Press the "transmission" screen key.
13 Press the "do both fwd and reverse" screen key.
14 The 8720ES VNA will beep four times when done.
15 Press the "isolation" screen key.
16 Press the "omit isolation" screen key.
17 Press "done 2 port cal" screen key.
18 Set the 8720ES VNA's averaging to off.
19 Save the reference plane cal by pressing the "save recall" key then the "save
state" key.
20 You may change name if you wish.
21 Press the "scale reference" key. Then
• Set for 1 dB per division.
• Set reference position for 7 divisions.
• Set reference value for 0 dB
22
Press the "measure" key.
23 Press the "s21" screen key.
24 Ensure s21 response on screen is flat out to 1 GHz (N2795A) or 2 GHz
(N2796A).