PDF1. Amplitude Modulation (AM)
Modulation is the process of varying a higher frequency carrier wave to transmit information. Amplitude modulation involves varying the amplitude of a carrier signal.
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2. Frequency Modulation (FM)
Modulation is the process of varying a higher frequency carrier wave to transmit information. Frequency modulation involves varying the frequency of a carrier signal.
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3. Phase-Locked Loops (PLL)
A phase-locked loop (PLL) is a feedback control circuit that synchronizes the phase of a generated signal with that of a reference signal.
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4. Looking for more RF Basics?
Engineers who are new to RF or looking for a a refresher course can attend a 3-Day National Instruments RF Fundamentals Training Course to explore traditional measurements, learn about digital and analog modulation, examine modern system-level tests such as BER, MER, and EVM, and more.
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5. Related Products
NI PXIe-5663 6.6 GHz RF Vector Signal Analyzer
The National Instruments PXIe-5663 is a modular 6.6 GHz RF vector signal analyzer with 50 MHz of instantaneous bandwidth optimized for automated test.
NI PXIe-5673 6.6 GHz RF Vector Signal Generator
The National Instruments PXIe-5673 is a 4-slot 6.6 GHz RF vector signal generator that delivers signal generation from 85 MHz to 6.6 GHz, 100 MHz of instantaneous bandwidth, and up to 512 MB of memory.
NI PXI-5660 2.7 GHz RF Vector Signal Analyzer
The National Instruments PXI-5660 is a modular 2.7 GHz RF vector signal analyzer with 20 MHz of instantaneous bandwidth optimized for automated test.
NI PXI-5671 2.7 GHz RF Vector Signal Generator
The National Instruments PXI-5671 module is a 3-slot RF vector signal generator that delivers signal generation from 250 kHz to 2.7 GHz, 20 MHz of instantaneous bandwidth, and up to 512 MB of memory.
NI PXI-5652 6.6 GHz RF and Microwave Signal Generator
The National Instruments PXI-5652 6.6 GHz RF and microwave signal generator is continuous-wave with modulation capability. It is excellent for setting up stimulus response applications with RF signal analyzers.
NI RF Switches
The National Instruments RF switch modules are ideal for expanding the channel count or increasing the flexibility of systems with signal bandwidths greater than 10 MHz to bandwidths as high as 26.5 GHz.
NI LabVIEW
National Instruments LabVIEW is an industry-leading graphical software tool for designing test, measurement, and automation systems.
6. Conclusions
For the complete list of tutorials, return to the NI Measurement Fundamentals Main page or for more RF tutorials refer to the NI RF Fundamentals main subpage. For more information about National Instruments RF products, visit www.ni.com/rf.
