472 kHz com quase nenhuma antena (experimentos CW de 630 m)
27:06
Playing Music on the Oldest Running Computer in America!
23:50
From practical wireless August 1955 to Christmas 2024.
22:10
Automatically Tracking L-Band Satellites With Hacked TV Dish & 3-D Printed Helicone Antenna
19:18
11 Meter Band - Freebanders and Signals from Jupiter
30:14
Heathkit GR-81 Receiver.
25:00
43 Foot Vertical antenna for portable operation.| K7SW
23:46
RTL SDR HF Helper improves reception
22:26