Yagi-Uda de 4 elementos para 21 MHz by YU7EF (EF154C) - YouTube
OK7K Contest Team - Antennas - 30 m
YU7EF | OM0A
OK1KIR Gallery: 50 MHz, Our system, 6 m antenna
EI7GL....A diary of amateur radio activity: 5-Element Yagi for 40 MHz (8-metres) by YU7EF
YU7EF - Callsign Lookup by QRZ Ham Radio
My EME system | Amateur Radio – PEØSAT
YU7EF 6m and 4m Duo band antenne
The EF0610 antenna designed by YU7EF
4 & 6m Ham Radio blog: Let's stack... Something :-) 2 * EF0606W1 YU7EF design "V6M" project - ACCOMPLISHED
YU7EF 6m and 4m Duo band antenne
The EF0610 antenna designed by YU7EF
EI7GL....A diary of amateur radio activity: 4-Element Yagi for 40 MHz (8-metres) by YU7EF
YU7EF - Callsign Lookup by QRZ Ham Radio
YU7EF yagi EF0206 na 144MHz | OM0A
YU7EF EF0606 build | Ham Radio DX
YU7EF 6 element 2m Yagi - Resource Detail - The DXZone.com
YU7EF_0210LT_Antenna
YU7EF Yagi antennes
The EF0610 antenna designed by YU7EF
The EF0610 antenna designed by YU7EF
YU7EF - Callsign Lookup by QRZ Ham Radio
EI7GL....A diary of amateur radio activity: 4-Element Yagi for 40 MHz (8-metres) by YU7EF
