Correct, this is a commercial channel. They will license horizontal only, or separate H & V antennas. But wouldn't do any good in this situation, best to leave the existing c-pol antenna alone and spend the money on engineering in the booster.
The booster can be vertical or horizontal only, but not a good idea because the consumer receive antenna problems I've already mentioned.
The booster can be vertical or horizontal only, but not a good idea because the consumer receive antenna problems I've already mentioned.