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Measure S-Parameters (NA Mode) 

S-parameter syntax is described by the following: 

S (out | in) 

out

 = FieldFox receiver port 

in

 = FieldFox source port 

1.  Press 

Preset

 then 

Preset 

2.  Press 

Measure   1

 then choose from the following: 

 

S11

  1-port reflection measurement. 

 

S21

 2-port transmission measurement.  

 

S12

 Reverse 2-port transmission measurement. 

Requires Opt 122.  

 

S22

 Reverse 1-port reflection measurement. 

Requires Opt 122. 

OR Press 

Trace  6

  then 

Num of Traces

  then select a 

Multi-trace configuration. Learn more on page 6. 

3.  Press 

Freq/Dist

 then either 

Start

 and 

Stop

 or 

Center

 and 

Span

 to enter a frequency range for the 

measurement. 

4.  Press 

BW  2

 then 

IFBW

 to select the IF Bandwidth 

for the measurement. Narrower bandwidths require 
more time to sweep. 

5.  Press 

Sweep  3

 then 

Resolution

 to select the 

number of data points for the measurement. More 
data points requires more time to sweep. 

6.  Press 

Cal  5

 to calibrate the measurement. See page 

to learn more. 

Continued on following page… 

 

Summary of Contents for FieldFox N9923A

Page 1: ...2 The Power Button and LED 2 Battery Usage 3 Measure S Parameters 4 Multi Trace Configurations 6 Measure DTF 7 Measure Cable Loss 1 Port 8 Calibration 9 Power Meter Mode 10 Save and Recall Files 11 Manufacturing Part Number N9923 90002 Print Date February 19 2010 Supersedes None Agilent Technologies Inc 2010 ...

Page 2: ...ive Save files to these devices for quick download to a PC USB Power Sensor For making Power Meter measurements Opt 302 Battery charger or extra battery The Power Button and LED To turn power ON briefly press the power button The LED is green The boot up takes about 60 seconds To switch to Stand by power low battery drain briefly press the power button The LED is amber and blinks slowly To turn po...

Page 3: ...play as much as possible Briefly press the power button to switch to Stand by mode when not being used Press again to restore power All current settings are preserved The FieldFox will shutdown automatically when battery power is very low to prevent it from being completely discharged Use ONLY a FieldFox charger to recharge a battery The battery can be fully charged while in the FieldFox in about ...

Page 4: ...asurement Requires Opt 122 OR Press Trace 6 then Num of Traces then select a Multi trace configuration Learn more on page 6 3 Press Freq Dist then either Start and Stop or Center and Span to enter a frequency range for the measurement 4 Press BW 2 then IFBW to select the IF Bandwidth for the measurement Narrower bandwidths require more time to sweep 5 Press Sweep 3 then Resolution to select the nu...

Page 5: ...Scale Manually enter a scale per division to view specific areas of the trace Ref Level Manually set the value of the reference line Ref Position Manually set the position of the reference line Values must be between 0 TOP line and 10 BOTTOM line Press Measure 1 then Format to change the format for the measurement Press BW 2 then Averaqe then enter a value for the number of trace sweeps to average...

Page 6: ...h as format markers and limit lines are applied to the ACTIVE trace in the same manner as when a single trace is present To select a multi trace configuration Press Trace 6 then Num Traces Then choose a multi trace configuration To activate a trace in order to change a setting Use the arrows to scroll through the traces OR Press Trace 6 then select Trace 1 Trace 2 Trace 3 or Trace 4 Only traces th...

Page 7: ...stance to Fault 5 Press Freq Dist then Stop Distance and enter the length of the DUT 6 If a diplexer or other filter is in the measurement path press Freq Dist and manually type the Min Start and Max Stop frequencies Otherwise press Meas Setup then select Frequency Mode Lowpass 7 Press Cal 5 and follow the Cal prompts 8 Disconnect any components or antenna that should NOT be measured and connect a...

Page 8: ...lues of the measurement 6 Press Sweep 3 then Min Swp Time Increase the sweep time until a stable trace is visible 7 Press Cal 5 then follow the calibration prompts 8 Connect the DUT cable to be tested to the FieldFox and connect a LOAD at the end of the DUT Depending on the DUT the following three steps may improve the amount of ripple that is visible on the screen 9 Press Trace 6 then Data Mem 10...

Page 9: ...ould be high quality components After making measurement settings see NA Mode or CAT Mode measurements Press Cal 5 then follow the prompts For highest accuracy with minimum connections for your setup perform the Calibration Type that is recommended by the FieldFox During a QuickCal press Skip Load when NOT using a jumper cable or adapter Cal Rdy is shown on the screen when CalReady is correcting t...

Page 10: ...ollows Select Offset Press Scale Amptd then Offset On Off Then Offset Val Enter a value by which the power meter display is offset A positive value compensates for a component with loss such as an attenuator Zeroing The Agilent USB Power Sensors perform internal zeroing automatically Internal zeroing does NOT require that the power source be turned OFF Perform external zeroing when measuring power...

Page 11: ...Recalls files to or from a USB Flash drive 2 Then File Type State Saves ALL FieldFox instrument settings and calibration for ALL Modes to an sta file Trace State Saves the current trace all traces in SA mode and instrument settings to an sta file Picture Saves the FieldFox screen to a png file Data S1P Saves CAT and NA Mode trace data to an S1P file Data S2P for NA mode only Data CSV Saves trace d...

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