Bigbear, Another option might be to use a new, compact antenna for UHF/VHF
for your locals such as:
https://www.walmart.com/ip/RCA-Attic...enna/146879296 or
https://www.amazon.com/GE-29884-Outd.../dp/B01MYMVPVX Those antennas should provide satisfactory reception of RF 13 as well as your UHF stations. For your Canadian stations on VHF, continue to use your existing antenna, aimed at Montreal. Unless your RG6 cable runs are over 50 feet, you should not need
any amplification except perhaps a distribution amp. Run the two cables of
RG6 and use an A/B switch to change between antennas. I do
not favor combiners as they cause more problems than they solve.
Not the most convenient way but after installing antennas for 30 years,
it works best...........