DX Cluster for AndroidPriority listing
- DX Cluster is an DX Cluster client for Android smartphones DX Cluster supports: Real time DX spots, Different band and mode filters, A country filter for spotter or the spots, Prefix or call sign alarms
20m CW QRP Transceiver
- The direct-conversion receiver uses an audio-based automatic gain control, an LC tone filter, and a 100-kHz crystal for frequency alignment. The same VFO is used for transmitting and receiving by DC1YB
- Crystal tester project, crystals are used to control the operating frequency of transmitters, and it is used in radio frequency converters, oscillators, filters for cw, ssb and many other applications.