Professional Upgraded 15MHz DDS Signal Generator Counter, Seesii 2.4Inch LCD Display High Precision 200MSa/s Dual-Channel Arbitray Waveform Function Generator Frequency Meter: Amazon.com: Industrial & Scientific
Portable Function Generator on Arduino : 7 Steps (with Pictures) - Instructables
Rigol DG1062Z Function Generators - Channels: 2, Frequency Maximum: 60 Mhz | TechEdu
33522B - Keysight Technologies - Function Generator, Arbitrary, 2 Channel
SDG1000X Waveform Generators | Siglent Function Generator
Rigol DG1022Z Arbitrary Function Generator 25 MHz with Second Channel | TEquipment
How to Use a Function Generator | Simply Smarter Circuitry Blog
Goupchn Programmable DDS Signal Generator 60MHz Dual Channel Arbitrary Waveform Function Generator Frequency Meter Cell Phone Control Signal Source: Amazon.com: Industrial & Scientific