This supposed to be a reply to this tread http://ez.analog.com/message/136724 but on some reason neither my collegs nor myself are able to submit replies to that. We are getting back a error message like "An error occurred while trying to submit your post. Please try again."
Anyway, as was adviced we tried the following:
0x001 = 0
0x057 = 0x30
0x06e = 0x4 (RX state) / 0xA4 (TX state)
and getting transmitted signal damaged this time according to 0x06E[D7 & D5] bit mask: if only one of these two bits is set during TX state, the signal on the relevant antenna gets messed out, but the other one remains good.