Hi Tony.......Among my papers I found a reference that may be of interest giving some historical background to your find. Retrieval of info from the net is not my strong suite but the article is titled " Canadian Radar Detachment on loan to Australian Military forces "
www.dnd.ca/commelec/brhistory/anxc_e htm . At the top of my printed page are the words Annex C - World War II Ground Radar. Brian