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> Hp - agilent 8981A vector modulation analyzer w/probes
Hp - agilent 8981A vector modulation analyzer w/probes
The 8981A Vector Modulation Analyzer includes a calibrated baseband analyzer which connects to the I and Q outputs of your receiver's demodulator and adds a vector demodulator for IF measurements as well. It connects to the IF output of your transmitter and to the coherent reference. It measures signal magnitude and phase of standard digital communication and radar signals. The instrument performs constellation analysis of quadrature error, lock angle error and closure. The design provides for quick, visual, intuitive measurements as well as giving quantitative data about a signal's modulation. These features allow a user to quickly identify problem sources and measure their magnitude. The HP 8981A is a Vector Modulation Analyzer, based on the Mod. 8980 A. *** Analyses coherent phase and amplitude modulation *** 350 MHz Q vs. I bandwidth *** Markers for measuring phase, amplitude, and time *** 12 bit digitizing for HP-IB measurements. HP 8981A adds built-in I/Q Demodulator with: *** 50 MHz to 200 MHz modulated IF input frequency range *** 100 MHz baseband bandwidth with external I/Q filters and 35 MHz with internal filters. *** Automatic internal/external demodulator calibration.
The HP 11748A Active Probe Set provides three 1 M Ohms 250 MHz BNC inputs for an HP Vector analyzer. HP Vector analyzers have special outlets from which the Active Probe Set is powered. Within the Active Probe set case are three, 1M ohms probe pods. Two probe pods provide I and Q signal inputs. A third probe pod provides an external trigger source. Each of the probe pods come with an HP 10435A 10:1 probe tip assembly and a bag of probe accessories. This probe system works with the Agilent (HP) 8981B vector modulation analyzer and many other scopes. It is also a stand alone probe system.
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