Links to Amateur Radio Services Amateur Radio Services FCC Amateur Radio Service American Radio Relay League (ARRL) QRZ Call Sign Database San Gorgonio Pass Amateur Radio Club (S.P.A.R.C.) Calimesa Amateur Radio Club Emergency Communication Service Radio Propagation So What’s all this about Solar Activity? Understanding HF Propagation VOACAP (See Previous Video Link) VOAPROP Download The Weather Woman — Dr. Tamith Skpv Propagation Discussion Solar Indices and HF Propagation Weather Prediction Center Gray Line Map A & K Index