I need a 6~20km long-range wireless HDMI video transmitter and receiver

Hi!

Which model to use when transmitting 1080 video and audio
over a distance of 6-20 km?

Requires the ability to program the parameters of the transmitter and receiver

COFDM
Frequency range 280 – 300 MHz
RF impedance 50 ohms
RF connector: SMA female
Lower delay, the minimum end-to-end delay is 250ms
128-bit AES encryption and decryption

TX
– Transmit power 15 – 25 W
– Input video:1Vp-p,75ohm
– Input audio: stereo
– Video program format: MPEG-2
– Input video 1080 50I, 1080 60I, 1080 24P, 1080 25P, 1080 30P, 1080 50P, 1080 60P, various modes are adaptive.
– Video format: NTSC, PAL can be set
Operating temperature : -20 ° C ~ +50 ° C

RX
-94dBm at 8M
Video image: 1080
Audio output mode stereo unbalanced 300 / 200mv
Operating temperature : -20 ° C ~ +50 ° C

what is the price of such a transmitter and receiver?

According to the above demand, the below model is recommended.