HELIX-70 Antenne Helix 432 MHz, 7 turns
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
Antennas for AO-40 at G4HLX
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
PA3DZL - Callsign Lookup by QRZ Ham Radio
QRP operation over the first geostationary amateur radio satellite
Stationary Directional Antennas
PDF) Side-fed bifilar helix antenna
QO-100 satellite station
195-225-8, 195-225 MHz (8) Turn Helix Antenna - M2 Antenna Systems, Inc
PDF) Design and implementation of quadrifilar helix antenna for satellite communication
The Practical Antenna Handbook, Fourth Edition - Apparently Apparel
Helix antenna : Helix antennas - The
QRP operation over the first geostationary amateur radio satellite
Stationary Directional Antennas
430-440 MHz CROSS 15 +15 elements 16.7dBi Antenna 70cmCROSS30W (AA)
Satellite station overview & radios - OZ1BXM