CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Wildlife Research   
Wildlife Research
Journal Banner
  Ecology, Management and Conservation in Natural and Modified Habitats
blank image Search
blank image blank image
blank image
  Advanced Search

Journal Home
About the Journal
Editorial Board
Current Issue
Just Accepted
All Issues
Special Issues
Sample Issue
For Authors
General Information
Notice to Authors
Submit Article
Open Access
For Referees
Referee Guidelines
Review an Article
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter youtube


Article << Previous     |     Next >>   Contents Vol 14(3)

A Remotely Switched Passive Null-Peak Network for Animal Tracking and Radio Direction Finding

HJ Spencer, G Lucas and P Oconnor

Australian Wildlife Research 14(3) 311 - 317
Published: 1987


A remotely switched null-peak network for combining RF signals from dual antenna arrays used for radio direction finding and animal tracking is described. The design is based on a balanced 50-Ohm coaxial bridge, which provides a difference (null) and summed (peak) output from two parallel antennas to the receiver. Reed relays activated through the receiver cable permit the network to be switched between peak or null modes of operation from the receiver, without the need for long dual cable runs from the antenna. The bridge presents a nominal 50-Ohm impedance at all terminals.

Full text doi:10.1071/WR9870311

© CSIRO 1987

blank image
Subscriber Login

PDF (316 KB) $25
 Export Citation
Legal & Privacy | Contact Us | Help


© CSIRO 1996-2014