Benchtop Measurement and Test
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You can request repair, RMA, schedule calibration, or get technical support. A valid service agreement may be required.
Provides support for NI data acquisition and signal conditioning devices.
Provides support for Ethernet, GPIB, serial, USB, and other types of instruments.
Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports.
11-08-2016 11:35 AM
Explanation of QAM modulation from Jeff Christensen @ GA...
See Quantized QAM and the Animated image to the right.
https://en.wikipedia.org/wiki/Quadrature_amplitude_modulation
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