there are 3 different choices for this wireless setup at BH. Not sure which to get for Houston. I went to the sennheiser chart, but it really shows more than one and gives a green and yellow highlighted area, any input appreciated.
The Sennheiser A block covers 518-554MHz, the B block covers 630-662MHz & the G block covers 566-608MHz. Based on the Sennheiser chart I would stay away from the A block. The B & G blocks are your best choices. Even then there are no guarantees. You'll have to scan the frequencys to find a clear channel.