Projects for the amateur radio engineer. Hardware, software, electronics and test equipment for the amateur community.
by Peter Baier (DK7IH) Abstract We intended to explore, if it is possible to directly frequency modulate a Direct Digital Synthesizer (DDS) with a given sine wave by using a fast microntroller (MCU) and optimized data transfer. The goal was to achieve this by using widely available radio amateur hardware, i. e. low cost equipment.…
This project has been cancelled but finally succeeded in another multiband transceiver: https://dk7ih.de/2020/01/03/an-experimental-hf-6-band-ssb-transceiver-part-1-basic-outline/ (Start entry for a series of articles covering this respective radio)
OK, I admit it: Drawing schematics is not among my favourite hobbies. 😉 But it’s a must if you run an amateur radio blog. 😉 Sadly, I sometimes make mistakes. And I appreciate that attentive readers sometimes find the things I’ve lost sight of. Two minor changes thus had to be made in the schematic…