Ham Radio - 630 meter band RX magloop in a hula hoop
18:54
Ham Radio - My 630 meter magloop. An overview
22:55
Ham Radio - 630 meter magloop observations and first contact
14:06
Les meilleurs filtres passe-bande HAM RADIO abordables à ne pas manquer !
17:11
2 More Ham Radio Bands, 630 meter / 2200 meter Amateur Radio
9:06
German WW2 100W.S and Torn.E.b on 630 meter ham frequency. 475 kHz
15:27
ver.2.0 UltraLight Magnetic Loop - great QRP Antenna
22:35
Ham Radio - Exploring the youloop passive RX antenna.
23:50