Hits
23 cm Helix Antenna and Preamp
- a 23 cm 10-turn helix antenna and preamp for 222 MHz and up contest
post 30 Jul 2025
Helix Antennas Links →
435MHz 12 turn Helix Antenna
This 50 ohm impedance antenna, when powered with 25-100W of RF in SSB, joins the Molniya orbiting satellites as AO-40 and AO-10
Techniques of Quadrifilar Helix Antennas for Small Satellites
Quadrifilar helix antennas are also called fractional turn helix is very appealing to spacecraft applications
A Home made Helical antenna for a GPS
In the practical construction of a half-turn quadrifilar helix it is especially important to respect the exact lengths of the helical wires
A quadrifilar helix weather satellite receiving antenna
How to make a quadrifilar helix QFH antenna easily from inexpensive materials PVC plumbing pipe and RG-58U co-axial
35
This 50 ohm impedance antenna, when powered with 25-100W of RF in SSB, joins the Molniya orbiting satellites as AO-40 and AO-10
Quadrifilar helix antennas are also called fractional turn helix is very appealing to spacecraft applications
In the practical construction of a half-turn quadrifilar helix it is especially important to respect the exact lengths of the helical wires
How to make a quadrifilar helix QFH antenna easily from inexpensive materials PVC plumbing pipe and RG-58U co-axial
Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio
Amateur radio kits by Kanga US
Enigma Component Shop Cable & wire,capacitors, connectors, crystals/oscillators, filters, hardware,kits/modules,test & measurement