She also held the expropriation of 50 Industriel did not amount to unconstitutional interference with federal jurisdiction
over radiocommunication.
[66] Moreover, the evidence in the record favours a finding that the siting of radiocommunication antenna systems is at the core of the federal power
over radiocommunication.
The majority concluded that the notice of reserve «seriously and significantly impaired the core of the federal power
over radiocommunication and that this notice served on Rogers was therefore inapplicable by reason of the doctrine of interjurisdictional immunity.»