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Direction Finding Antennas and Accuracy Part 3: The Art of Designing DF...

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In the previous two blog posts we discussed some of the effects that could influence the sensitivity of a DF antenna system.  These were...

Alaris could delist from the JSE as part of R500 million...

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Radio frequency technology specialist Alaris has received a R535 million buyout bid, which could see it delisted from the Johannesburg Stock Exchange (JSE). In a...

Direction Finding Antennas and Accuracy: Part 2

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In the previous blog post we considered some of the ways in which we can express the performance of an DF antenna, and we...

Prioritising quality is crucial to saving lives and protecting assets

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Gisela Heyman is the Managing Director of Alaris Antennas and has been with the company for 6 years.  During her first year as MD...

Direction Finding Antennas and Accuracy – Part 1: Accuracy and Sensitivity

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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...

Stop Rhino Poaching

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NGO Stop Rhino Poaching was established in 2010 as a response to the sudden and steep escalation in rhino poaching across South Africa.  Since...

An Introduction to Radio Direction Finding

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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) evolved for much...

High-Gain Omni Antennas in Mobile Applications 

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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...

Alaris Antennas: Spacing of multiple LPDAs on a mast 

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One of the questions we often get asked at Alaris Antennas, is the question of spacing between multiple antennas on the same mast. Often, this...

Alaris Antennas Foldable High-Power LPDA Antennas

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Alaris Antennas has a new range of Foldable High-Power Log Periodic Dipole Antennas (LPDA)s which cover a wide range of frequency bands. The antennas...

COMPANY NEWS

SA’s top soldier right on decline upon a decline in the SANDF

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South Africa’s senior soldier – SA National Defence Force (SANDF) Chief – General Rudzani Maphwanya has it spot on in that the decline upon...