Интересные сслки
1.Budget-Friendly 5-Element Quad Antenna Design
2.Budget-Friendly QRP T-Tuner and SWR Bridge
3.A Guide for Seamless FT8 Operation – Time Sync
4.Building a Robust PL519 Tube HF Amplifier
5.GMA Maps
6.Adapting Standard Headset Mic for Y...