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Direction Finding

Direction Finding Antennas and Accuracy

Direction Finding Antennas and Accuracy Direction Finding By Johan Fuhri, Product Owner Part 1: Accuracy and Sensitivity It is sometimes said that: “If you can’t convince them, confuse them!”.  Nowhere is this more apparent than the minefield which is antenna datasheets and brochures. Direction finding antennas are meant to be instrumental in accurately determining the […]
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radio direction finding

An Introduction to Radio Direction Finding

An Introduction to Radio Direction Finding Radio Direction Finding By Eugene Botha and Kalinka Faul Humans do audio direction finding to a remarkable precision of less than two degrees.  Shortly after the development of radio transmitters and receivers, radio direction finding (RDF or just DF) evolved for much the same reasons as human audio direction […]
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High-Gain Omni

High Gain Omni Antennas in Mobile Applications

High Gain Omni Antennas in Mobile Applications High Gain Omni Antennas By Johan Fuhri Antenna Principles High Gain Omni directional antennas are used in situations where the direction of the receiving antenna is not static or known.  A typical situation is where antennas are mounted on a mobile platform like a vehicle or vessel. In […]
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High Power Transmit

Expecting the Unexpected: High Power Transmit Antennas on Vehicles

Expecting the Unexpected: High Power Transmit Antennas on Vehicles High Power Transmit Article Written by Johan Fuhri Introduction Many of the Alaris Antennas products are used in vehicle-based high power transmit systems, a typical application being the protection of convoys or VIP transport vehicles against remotely triggered improvised explosive devices (IED)s.  Since the performance of […]
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