[mircemk] had previously built a frequency counter using an Arduino, with a useful range up to 6 MHz. Now, they’ve implemented a new design on a far more powerful STM32 chip that boosts the ...

10 MHz output from DIY frequency standard Of course ... his relatively affordable Siglent SDG 1025 Arbitrary Function Generator, but found its accuracy to be a bit lacking.

The 1510A Precision Signal Source generator available from MTI Instruments is a compact and portable device and includes dual-channel Direct Digital Synthesis (DDS) that creates high precision signals ...