Wireless $75 Teradek Bolt 500 LT SDI Wireless TX/RX Transmits up to 500' Line-of-Sight, Supports up to 1080p60 Resolution, Backward Compatible with Select Systems SDI Input/Output $75 $125 DJI Transmission with High-Bright Monitor Combo Transmitter & High-Bright RX Monitor Kit, Transmit 1080p60 Video over 3 Miles LoS, 7" 1920 x 1200 Touchscreen Display. HDMI/SDI $125