Here are clear and simple facts.
Canada is Still Into the DTV transition and Will Be for quite some time into the future. And the channels for the most part will be in the VHF high band range and UHF range.
http://www.tvtechnology.com/feature-...f-track/206775 ,
www.tvtechnology.com/feature-box/1024/canadas-minimalist-approach-to-the-dtv-transition/208826
In the tvfool radar plot for Pending Digital Channels Included.
CFTO-DT Real VHF Tv Channel 9
CKVR-DT Real VHF Tv Channel 10
CHCH-DT Real VHF Tv Channel 11
And WBBZ-TV Real VHF Tv Channel channel 7 is weak and Yes Is Receivable at minus -7.2 NM(dB) signal strength , with a 10 foot antenna height.
With the antenna mounted above the roof 20 or more feet above ground the signal strength will most likely improve for WBBZ.