Wide measuring range up to 3.5GHz
9 digits Led display
Frequency ration, Time inter val, Period measurements
Trigger function
High stability time base
External frequency standard input
Input attenuator, low pass and Line filters
RS-232C interface
|
Specifications |
Model 1856D |
|
Technical Specifications |
|
Input A Characteristics |
|
Frequency Range |
0.1 Hz to 100 MHz (DC coupled)
30 Hz to 100 MHz (AC coupled) |
|
Sensitivity |
30 mV rms |
|
Coupling |
AC or DC selectable. |
|
Impedance |
1 MΩ resistance shunted by < 40 pF |
|
Attenuator |
x1 or x10 switch selectable |
|
Low Pass Filter |
-3 dB point at approx. 100 KHz, switch selectable |
|
Accuracy |
± Time base error ± resolution (Table 1) |
|
Resolution and Number of Displayed Digits
|
Time Base Selector |
INT |
EXT |
INT |
EXT |
INT |
EXT |
INT |
EXT |
|
Gate Time |
0.01S |
0.1S |
1S |
10S |
|
Number of Display Digits |
5 |
6 |
6 |
7 |
7 |
8 |
8 |
9 |
|
Frequency (Input A) |
Resolution |
|
0.1 Hz-0.99 Hz |
10 µHz |
1 µHz |
1 µHz |
0.1 µHz |
0.1 µHz |
10nHz |
10nHz |
1nHz |
|
1 Hz-9.9 Hz |
0.1mHz |
10 µHz |
10 µHz |
1 µHz |
1 µHz |
0.1 µHz |
0.1 µHz |
10nHz |
|
10 Hz-99 Hz |
1 mHz |
0.1mHz |
0.1mHz |
10 µHz |
10 µHz |
1 µHz |
1 µHz |
0.1 µHz |
|
100 Hz-999 Hz |
10mHz |
1 mHz |
1 mHz |
0.1mHz |
0.1mHz |
10 µHz |
10 µHz |
1 µHz |
|
1 KHz-9.9 KHz |
0.1 Hz |
10 mHz |
10 mHz |
1 mHz |
1 mHz |
0.1 Hz |
0.1 mHz |
10 µHz |
|
10 KHz-99 KHz |
1 Hz |
0.1 Hz |
0.1 Hz |
10 mHz |
10 mHz |
1 mHz |
1 mHz |
0.1mHz |
|
100 KHz-999 KHz |
10 Hz |
1 Hz |
1 Hz |
0.1 Hz |
0.1 Hz |
10 mHz |
10 mHz |
1 mHz |
|
1 MHz-9.9 MHz |
100 Hz |
10 Hz |
10 Hz |
1 Hz |
1 Hz |
0.1 Hz |
0.1 Hz |
10 mHz |
|
10 MHz-99 MHz |
1 KHz |
100 Hz |
100 Hz |
10 Hz |
10 Hz |
1 Hz |
1 Hz |
0.1 Hz |
|
100MHz |
10 KHz |
1 KHz |
1 KHz |
100 Hz |
100 Hz |
10 Hz |
10 Hz |
1 Hz |
(Table 1) |
|
Max. Input Voltage Level |
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