Agilent Technologies XX3625 Service Manual page 52

Chapter 3: Testing Performance
To test bandwidth
Ω
( )
response dB = 20log
487 mV
-------------------
20log = 20log
10
559 mV
−
µ
µ
V
1500 MHz
----------------------- -
= 20log
10
V
10 MHz
0.871 = – 1.19dB
10
−
− − − −
+
________=_______dB
10
−