View source for Half Duplex Transponder

{{GlossaryEntry
|definition=Transponder implanted in the fish. It is passive (i.e. it does not contain an internal energy source) and obtains power inductively from an antenna when the fish pass through the electromagnetic field produced by the antenna.
|source=[http://vzb.baw.de/publikationen/merkblaetter/1/Guideline_Upstream_Fishways_Version2.pdf Guideline Upstream Fishways on German Federal Waterways (AH FAA), Bundesanstalt für Wasserbau (BAW) und Bundesanstalt für Gewässerkunde (BfG), Version 2.0, 26/06/2015] (retrieved 10.05.2017)
|name_de=Half Duplex Transponder
|abbr=HDX
}}