MONTREAL - Canadian and Portuguese cable company Cogeco Cable says it will soon issue up to $500 million in new debt. The company has filed with the securities regulators in each of the provinces and territories of Canada, a preliminary short form base shelf prospectus for the issuance of up to $500 million of debt securities, which may consist of debentures, notes or other types of debt securities. These debt securities may be offered from time to time, during a twenty-five-month period for which the short form base shelf prospectus remains valid. The specific terms of any debt securities will...