The BIG SIGNAL – Antenna Systems company has a radio amateur background, Juan Pedro, EA5GJ. The company also cooperates with the well-known Máximo EA1DDO. They specialize in loop antennas and quad directional antennas in the range of 3.5 to 432 MHz.
Quad antennas are known for their excellent electrical properties. BIG SIGNAL antenna designs are optimized and simulated using state-of-the-art software. Then each model was subjected to direct testing and verification directly in operation.
Over the years, the Cubical Quad and Delta Loop antennas have raised many doubts about their mechanical strength and durability. Nowadays, with the improvement of materials, the myths about their fragility have changed and are history.
You can find the offer of antennas and accessories at https://bigsignal.es/en