Chapter 1 Getting Started
Making Measurements
1-16
Operating Guide
1
Selecting Input Impedance
Channel 2’s input impedance is now set to 50
Ω
.
NOTE
The “arrow” keys can also be used to toggle the state of toggle keys
(DC/AC, 50
Ω
/1M
Ω
, etc.) as indicated by the flashing indicator within the
arrow keys. However, for simplicity in this procedure, use the
corresponding toggle key to change states.
If you want to change the input impedance back to the default
1 M
Ω
impedance, perform the following step.
50
Ω
1M
Ω
50
Ω
1M
Ω
Freq
MHz
Ch 2
Gate
Содержание 53131A
Страница 1: ...Operating Guide HP 53131A 132A 225 MHz Universal Counter ...
Страница 2: ......
Страница 26: ...xxiv Operating Guide ...
Страница 41: ...1 Getting Started ...
Страница 77: ...2 Operating Your Universal Counter Operator s Reference ...
Страница 171: ...3 Specifications ...
Страница 196: ... Manual Part Number 53131 90055 Printed in U S A MAY 1999 ...