HP 8530A Operating And Programming Manual

Also see for 8530A: User guide User guide User guide

Front Panel FeaturesBasic Measurement FunctionsFour of the main control blocks on the front panel are STIMULUS, PARAMETER, FORMAT, andRESPONSE. These are described below:STIMULUS This block lets you select RF power levels, and desired frequency and anglesettings. It also controls how you can trigger the instrument to take each pointof data. For example, you can trigger o the Record Increment pulses (cominginto the receiver's EVENT TRIGGER jack from the positioner controller) byselecting EXTERNAL trigger. Alternatively, you can trigger over HP-IB usingthe GET command.PARAMETER The PARAMETER block contains the prede ned input ratio keys PARAM 1(b1/a1), PARAM 2 (b1/a2), PARAM 3 (b2/a1), and PARAM 4 (b2/a2). The normalmeasurement mode for the receiver is to mathematically ratio (divide) thedata from the test and reference antennas. Ratioed measurements reducemost errors caused by the range, and shows the actual performance of theAntenna Under Test. You can rede ne any of the parameter keys to ratioany two inputs you desire. You can also look at any single input using theNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNSERVICE 1 a1 through NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNSERVICE 4 b1 softkeys.FORMAT Format keys let you choose how the data is displayed on the screen. You canselect logarithmic magnitude LOG MAG , linear magnitude LIN MAG , phasePHASE , polar logarithmic magnitude POLAR MAG , and polar linear magnitudeNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNLINEAR ON POLAR (located under the FORMAT MENU key)RESPONSE The response block keys let you set the display scale and reference line.Functions under the MENU key let you turn on averaging and normalization.(Normalization allows you to set the peak of the main lobe to 0 dBi andmeasure other parts of the trace relative to the peak.)Each major control block has functions that are not mentioned here. Refer to Chapter 6, 7, 8,and 9 for descriptions of these features.Front and Rear Panel 3-7