5.1.2
General Cautionary Points
5-2
5.1.2. General Cautionary Points
•
Perform testing under the following environmental conditions.
Test temperature range: +25
°
C
±
5
°
C
Relative humidity:
80% or lower
Locations free of dust, vibration, and noise
5.1.3. Frequency Accuracy and Range
Testing procedure
3.
Setup the R3755x as shown in the figure below.
To counter input
Figure 5-1 Frequency Accuracy and Range
4.
Set the R3755x as follows.
Span
: 0 Hz
Sweep mode
: SINGLE
5.
Change the center frequency to the desired setting within the following ranges:
R3755A
10 kHz to 300 MHz
R3755TF 10 kHz to 10 MHz
R3755E
1 MHz to 300 MHz
6.
Check that the counter read frequency < center frequency
±
center frequency
×
20
×
10
-6
Example: When the center frequency is at 10 MHz, the range is 10 MHz
±
200 Hz
(that is between 9,999,800 Hz and 10,000,200 Hz).