5.2.2
General Cautionary Points
5-9
5.2.2. 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
5.2.3. Frequency Accuracy and Range
Testing procedure
3.
Setup the R3760 as shown in the figure below.
To counter input
Figure 5-5 Frequency Accuracy and Range
4.
Set the R3760 as follows.
Span
: 0 Hz
Sweep mode
: SINGLE
5.
Change any center frequency in the range of 300 MHz to 6 GHz.
6.
Check that the counter read frequency < center frequency
±
center frequency
×
50
×
10
-6
Example: When the center frequency is at 1 GHz, the range is 1 GHz
±
50 kHz (that
is between 999,950,000 Hz and 1,000,050,000 Hz).