Review on Mirabox HDMI USB KVM Extender,80M 1080P@60Hz Full HD Over Rj45 Cat5 Cat5E Cat6 Cat6E,USB2.0 * 2,Lossless No-Delay Transmission For DVR,NVR,CCTV,Server Room,Laptop,PC,Webcam,Transmitter And Receiver by Shane Sanchez

I connected the HSV375 from my satellite receiver to a TV, thru a 60ft RG-6 coax.Great picture and sound on 720p and 480p.My Dish Hopper Duo doesn't have a 1080p setting, just 1080p/1080i.On this setting, the coax extender might work on shorter runs, but may be unstable.Not the fault of the HSV375, its made for "p" progressive scan and not "i" interlaced scan resloutions.If your using a true 1080p unit, there should't be any problem.FYI, When you first power up the extenders, give it a minute for the transmitter and receiver to sync up.If it doesn't, make sure the coax and splitter (if used), are in good condition.