The CalAmp microwave antenna is/was commonly used for a Pay Tv System known as MMDS Multichannel Multipoint Distribution System. This transmission and reception system operates in the microwave frequencies that are different then broadcast Tv frequencies and can not be used for broadcast Tv reception.
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At your location some Tv transmissions are from the CN Tower some 51.7 miles distant to the south.
And 2 Tv transmissions are to the north at 42.2 miles distant.
And CKVR is 2.7 miles.
I recommend install a Winegard HD7698P antenna (up high) aimed at about 176 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Do not use a preamplifier , the strong local Tv transmission of CKVR will overload a preamplifier and be the cause of bad or no reception of some channels.
For 1 Tv connected use no splitter , no amplifier.
For 2 Tv's connected use a Channel Master CM3412 distribution amplifier.
For 3 or 4 Tv's connected use a CM3414 distribution amplifier.
Here are some places to buy antennas and etc. ,
http://www.saveandreplay.com ,
http://www.trentondistributors.com ,
http://www.canadapost.ca/shopper ,
http://www.amazon.ca ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com ,
http://www.channelmasterstore.com.
You say you are installing the antenna above the roof.
How many floors (how high) is the house??
What will the HD7698P antenna be mounted on??
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As always , trees and tree leaves do a real fine job of reducing or blocking Tv reception and so do buildings and other obstructions.
It is best to install a antenna up high at a location that has the least amount to no amount of obstructions in the directions of reception.
The Tv/s Must Channel Scan for the Broadcast Tv Channels , sometimes named the 'Air Channels' or 'Antenna Channels' in the Tv setup menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
DO NOT channel scan for cable tv channels.