1. 2m Lightweight Portable Dipole - https://vk1nam.wordpress.com/2m-lightweight-telescopic-dipole/
2. IW7DMH: CW Trainer for Morserino 32 - New multi-platform release - https://iw7dmh.jimdofree.com/other-projects/cw-trainer-for-morserino-32/
** 63.5 dB Programmable Digital Attenuator - https://iw7dmh.jimdofree.com/other-projects/63-5-db-programmable-digital-attenuator/
3. DXCenter DX Cluster - https://dxcluster.dxcenter.com/
4. Learning about Electronics (онлайн-калькулятори) - http://www.learningaboutelectronics.com/Calculators/
5. FT8-DxCluster - https://dxcenter.com/FT8Chat/
