Hits
Delta Loop Low Cost
All you need is a 6.2m of flexible wire, 1.1m of 75_Ohm coax, some electrical connector blocks and a length of rope to hang it from
post 28 Aug 2024
Antenna 6 meter Links →
50MHz-Lambda/2-Vertical
The matching circuit is the same as above with the following components, C 1 = 20 - 110 pF, variabel Mica capacitor,C 2 = 2 - 15 pF, variabel foil capacitor
50MHz-Yagis
The 50MHz-Yagis are designed with an impedance of 12.5 Ohm or 28 Ohm and some types with 50 Ohm impedance
6 & 2 Meter Square Copper Dipoles
A 2m square dipole, made from copper plumbing fittings and 1/2 inch copper water pipe
6 Meter 5/8 Wave Vertical Antenna
The vertical is loaded from the bottom with a coil wound on a previous block
102
The matching circuit is the same as above with the following components, C 1 = 20 - 110 pF, variabel Mica capacitor,C 2 = 2 - 15 pF, variabel foil capacitor
The 50MHz-Yagis are designed with an impedance of 12.5 Ohm or 28 Ohm and some types with 50 Ohm impedance
A 2m square dipole, made from copper plumbing fittings and 1/2 inch copper water pipe
The vertical is loaded from the bottom with a coil wound on a previous block
Antenna switch arduino for icom IC-7300 A solution built around an arduino nano and one of the readily available four relay switching boards
Antenna helix per oscar 100 Helix antenna diametro 4 mm- 6 spre su diametro di 40 mm- con spire distanziate tra loro di 25 mm
30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground