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FieldFox User’s Guide
How to select Built-in Power Meter Mode
Press
Mode
Then
Power Meter (Built-in)
CAUTION
Please observe the RF IN port damage level.
+27 dBm (320 mW) average
+33 dBm peak (2 W) <10μs
+50 VDC
Frequency/ Span / Step
Valid Built-in Power Meter measurements can be made over the entire frequency
range of the FieldFox. Although it is possible to enter a center frequency below
the FieldFox minimum frequency, the LO feed-thru of the internal SA hardware
will invalidate these Built-in Power Meter measurements.
The measurement span (also known as Channel Width and Integration BW) is the
frequency range, half above and half below the center frequency, over which
power is detected and displayed. The maximum measurement span is 100 MHz.
How to enter center frequency, step size, and span
The default frequency is 50 MHz.
Press
Freq/Dist
.
Then
Frequency
.
Then
Center
Then type a value using the numeric keypad. Then press a multiplier key.
Learn about multiplier abbreviations on page 19. The current frequency (f) is
shown on the FieldFox screen.
Optionally, use the
▲|▼
arrows to quickly change Center frequency. The size
of the frequency step can also be changed. Press
CF Step
then type a step size
value using the numeric keypad, then select a multiplier key.
Optionally press
Span (Ch Wid)
Type a value using the numeric keypad. Then
press a multiplier key. The default span is 2 MHz. The maximum span is 100
MHz. The current span setting is shown as the dividend in the digital display.
For example: -10
dBm
/ 1.00 MHz
Radio Standard
A Radio Standard can used to integrate power within specific radio channels.
When a Radio Standard is selected, the
Span
setting is automatically coupled to
the defined Channel Width for that standard. (Width is the same for all channels
within a standard.) Also,
Unit
is set to
Chan
and
CF
is set to the nearest specific
Channel defined in the standard.
Learn more about Radio Standards, including Importing and Deleting Custom
Radio Standards, beginning on page 84.
