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S:\HP83206A\USRGUIDE\MANUAL\ref.fm
Chapter 7, Screen and Field Descriptions
Parameters of the DIGITAL MEASUREMENT Screen
Trig Type Settings: Amptd Hi, Amptd Mid, Amptd Low, Immediate, ANL TG IN, Frame
Clk, 2x Frame
Units: None
This field specifies the trigger conditions for the digital analyzer.
Selecting the appropriate trigger is necessary when making BER measurements
and aligning the digital analyzer to timeslots for power, adjacent channel power,
or EVM measurements.
Selecting
Immediate causes the analyzer to be triggered immediately.
Selecting
ANL TG IN causes the analyzer to be triggered by the signal at the
HP 83206A’s ANALYZER TRIGGER IN connector. However, this connector is
not active on the HP 82603A.
Selecting
2x Frame causes the analyzer to be triggered by the 50 Hz, 2 × frame
clock provided by the Test Set’s digital generator.
Selecting
Frame Clk causes the analyzer to be triggered by the 25 Hz frame
clock provided by the Test Set’s digital generator.
Amplitude triggering uses low-to-high amplitude transitions in pulsed carriers as
the trigger source. Trigger thresholds are at
−6 dB (Amptd Hi), −12 dB (Amptd
Mid
), and −18 dB (Amptd Low) from the maximum AdcMaxAbs level. The
Input field must be set to either Int IF or Ext IF IN.