these are illegal in Russia but very powerful 
distance is monstrous:)
1km – 30km i think your MIX will be too silent to control!
they have 150mbps one:
http://www.senao.com/English/Default.aspx?TYPE=vipplayercard.htm&PT=product_t&tv_TCAT_POS=0&PID=02010011&CATNO0=B&CATNO1=B21&CNT=1
Cheers
agutin.com
2x iDR32 +MADI OPTION
MacBook,
desktop+2x RME HDSP MADI 2 X M DANTE CARDS
