I get CHCH fine in North York with a DB8. The only requirement is that I must point the antenna towards Hamilton. You should be able to easily get CHCH with your DB8 but you must point it towards Hamilton. I am sure this is a nuisance for you since most other stations will be south-east from Brampton and Hamilton is south-west.... a good ninety degrees apart.

Once again, if I can receive CHCH with a DB8 in North York you should not have a problem in Brampton. I have learned with OTA that a lot of antenna experimentation is required.