168
FieldFox User’s Guide
o
2-Port Transmission
2-port transmission measurement. Learn how to make
this measurement on page 172.
o
B/A
and
A/B
2-port ratioed receiver measurements using external sources.
Learn more on page 173.
Frequency Selection
VVM measurements are made at a single CW frequency.
How to set Frequency
NOTE
Frequency can be set to 1 Hz resolution.
Press
Freq/Dist
Then
Frequency
Enter a value using the numeric keypad, the
▲|▼
arrows, or the rotary knob.
After using the
▲|▼
arrows or the rotary knob, press
Enter
. The increment
setting of the arrows is based on the current span and can NOT be changed in
VVM Mode.
After using the keypad, select a multiplier key. Learn about multiplier
abbreviations on page 19.
Display Resolution
You can display either one digit or two digits after the decimal point for both
magnitude and phase readings.
This setting survives a Preset and Mode Preset.
How to set Resolution
Press
Scale/Amptd
Then
Resolution
Then choose:
o
1
0.0 (default)
o
2
0.00
IF Bandwidth
Reducing the IF receiver bandwidth reduces the effect of random noise on a
measurement. However, narrower IF bandwidths cause longer measurement
times.
For highest accuracy, Zero AFTER changing the IF Bandwidth. Learn about
Zeroing on page 170.
How to set IF BW
Press
BW 2
Then
IF BW
Then choose from the following: