dishesh would be 2x RX and TX (chain0+chain1) at my opionin better...I believe I would go with an 802.11n card. The dish is dual polarity. This should help a lot on this link.
the same at the moment, i believe it's max of RB333 - have 30/30mbps real trafficI`v got something about 60 mbps with RB333 configured as wds bridge