Hackaday2 年
QRP operation
[David], DL1DN, is an Amateur Radio enthusiast with a penchant for low-power (QRP) portable operations ... his portable 20 m antenna, but was missing the telescoping whip. He calculated the ...
Hackaday2 年
Aluminum Foil 20 Cm Antenna For 10 M Operation
[David], DL1DN, is an Amateur Radio enthusiast with a penchant for low-power (QRP) portable operations ... his portable 20 m antenna, but was missing the telescoping whip. He calculated the ...