Bamenda,
Hi and welcome to the FTA area of SatelliteGuys! Glad you came in!
I will have to explain that you cannot get Brazilian "satellites" from our locations with any dish or receiver. The satellites intended for Brazil can only be seen or detected from Brazil or the general area. However, there may be Brazilian "channels" which are picked up by other agencies/providers that are rebroadcast on FTA satellites that you and I in the upper midwest can pull in.
I personally cannot tell you anything about the Brazilian channels in that regard as I don't know what those channels are, so I cannot go out looking for them to find out which sats carry them as a rebroadcast. This is where you will have to pick out a station that you are familiar with and then start Googling it or tracing down which sat available to us (a sat that you and I can see from our location) might carry it. You will have to spend some time just looking up the major channels that you are interested in and tracking them to other sats.
Google is probably the best resource to start from, that usually leads you to further and more detailed clues in such regards. It may be quick to find one or two channels, but on the other hand, you might have to spend a lot of time tracking them down. That is why this FTA business is considered a hobby for us. They just don't give the information out very freely, we have to work for it.
For many, that is the fun of the challenge, for others it is just a pain and an obstacle. You will have to decide what to call it for your situation.
RADAR