South African SKA demonstrator systems: Evolving RFI mitigation investigations

South African SKA demonstrator systems: Evolving RFI mitigation investigations

The South African SKA demonstrator is founded on the Karoo Array Telescope (KAT). A holistic approach to radio frequency interference (RFI) mitigation has been adopted from the outset. We describe our group's contribution to this evolving effort. We consider the RFI beginning from the 100 km po...

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Hauptverfasser: Reader, H. C., van der Merwe, P. S., Otto, A. J., Wiid, P. G., Langat, P. K., Andriambeloson, J., van der Merwe, C.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antenna measurements
Arrays
Cable shielding
Electromagnetic compatibility
Extraterrestrial measurements
Power cables
Telescopes
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creator Reader, H. C.
van der Merwe, P. S.
Otto, A. J.
Wiid, P. G.
Langat, P. K.
Andriambeloson, J.
van der Merwe, C.
description The South African SKA demonstrator is founded on the Karoo Array Telescope (KAT). A holistic approach to radio frequency interference (RFI) mitigation has been adopted from the outset. We describe our group's contribution to this evolving effort. We consider the RFI beginning from the 100 km powerlines, through to the site base equipment and continue right up to the KAT-7 telescopes. A site survey was conducted with systems initially deactivated and then individually switched on to determine signature characteristics. More detailed studies include analysis of telescope pedestal shielding interfaces and cable transfer impedance.
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subjects Antenna measurements
Arrays
Cable shielding
Electromagnetic compatibility
Extraterrestrial measurements
Power cables
Telescopes
title South African SKA demonstrator systems: Evolving RFI mitigation investigations
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