hi friends, I have a Hikvision NVR (DS-7608NI-K2) in site "A" and 3 Hikvision cameras (DS-2CD2023G0-I, DS-2CD2123G0-I and DS-2DF8236IX-AELW) in site "B" and 3 more just like them in site "C". Site "B" is 12 Km away from "A" and "C" is 22 Km away from "A" too. The thing is that I need to link A with B and A with C to connect the six cameras to the NVR. What radios can you recommend me to accomplish that??? Thanks a lot in advance!!!