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Les antennes hélice sont des antennes directionnelles pour polarisation circulaire, principalement conçues pour le traffic satellite mais utilisables tout aussi bien pour des opérations terrestres. Pour des considérations physiques la polarisation circula
432 MHz CROSS EME 15.1dBi Yagi Antenna 12 + 12 Elements 70cmCROSS24DXR (AA)
DXPATROL QO-100 Satellite Helix Antenna Instruction Manual
HELIX-13-2 Helix antenna 2350 MHz, 40 turns
Ham radio blog by OZ1BXM: Transmitting via Es'hail-2/QO-100 geostationary satellite
QRP operation over the first geostationary amateur radio satellite
PDF) Side-fed bifilar helix antenna
Exemplary good 42 elements EME World’s Best CROSS Yagi Antenna 70cm42CROSS with 18.2dBi gain, low noise characteristics and high suppression of all
Antennas Amplifiers
Practical VHF and UHF antennatyrtyrts.pdf
Helix Antenna for 7 MHz - Resource Detail - The
PA3DZL - Callsign Lookup by QRZ Ham Radio
70cm CROSS Antenna 70cmCROSS16WR 8+8 Element, rear Mount 70cm CROSS Antenna 70cm16CROSS with 16 elements (8+8) is used as part of the LEO Pack.The
Antennas Amplifiers
Helix-70
HELIX-70 Helix antenna 432 MHz, 7 turns
432 MHz 23 Elements 19.1dBi 850W Beam Antenna 70cm23DX (AA)
432MHz CROSS Antenna 8 + 8 elements for LEO Satellites 70cmCROSS16WR (AA)
70cm Rear Mount EME Antenna 70cmCROSS24DXR, low Noise, best gain antenna for super weak EME – Q65 MAP65 signals on 432-434 MHz band.Highest possible
Antennas Amplifiers