Very often, where you go cheap, there is a price to pay. Exactly like with cheap 433MHz transmitter-receiver pair of FS1000A and XY-MK-5V. You rather do not expect much for $1, right?
When playing with them in a middle of a big city (Berlin), few meters of the range was all those modules were able to archive. Too many interferences from other devices. But what about open space in a middle of nowhere? I've decided to test that, and this is what I came up with:
If the video was too long: 315m apart, no direct line of sight between transmitter and receiver and still stable data flow! It would be more, but nature was against me and I just was not able to go further. I did not expect that much range from those two…On the one side, 315m for super cheap FS1000A and XY-MK-5V is a reasonable range. On the other, it's pretty close, right?