A traditional Lindenblad antenna uses four,dipole, driven-elements to create a circularly-polarized, omni-directional radiation pattern
post 26 Dec 2021
Satellite Antenna Links →
435 MHz 9-turn helix
A antennas at G4HLX for AO-40 mode
L'antenne Quadrifilar
The antenna is made up of 2 loops at 90 ° making a 90 ° rotation in the vertical plane,the polarization is circular,right circular if the turns rotate counterclockwise and Conversely
Lindenblad antenna 2m/70cm
the 70cm radiator is changed to coaxial antenna design. Coax cable is routed through the bottom ¼ lambda element, thus no balun is needed – the sleeve is actually the balun
A Sky TV Dish to 60 cm for AO-40 S-Band
Of eight helices long and short I've made in this manner, all have presented VSWR's 1.2:1 or under with no adjustment
Minhas aventuras via satellite
More than 20 years ago, it was much more interesting and enjoyable to do qso via satellite than today. It had no Internet and no cheap PC computers
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A antennas at G4HLX for AO-40 mode
The antenna is made up of 2 loops at 90 ° making a 90 ° rotation in the vertical plane,the polarization is circular,right circular if the turns rotate counterclockwise and Conversely
the 70cm radiator is changed to coaxial antenna design. Coax cable is routed through the bottom ¼ lambda element, thus no balun is needed – the sleeve is actually the balun
Of eight helices long and short I've made in this manner, all have presented VSWR's 1.2:1 or under with no adjustment
More than 20 years ago, it was much more interesting and enjoyable to do qso via satellite than today. It had no Internet and no cheap PC computers