315MHz Codec-Adaptive Wireless Relay

Hello Community,

I am trying to set something up and seeing if anyone has any ideas. I am trying to use this relay as a gate unlocker. There is power at the gate, but I cannot run any other cables. I am trying to see if there is a way to set it up to send another signal to close the circuit again. So pretty much hit the button and 10 seconds later it will automatically resend the signal, or if there is another device that will repeat the signal, to close the door again.

Anyone got anything? Any ideas?

Also the 315 MHz isn’t really getting the distances I am looking for. Is the 415 going to be that big of a difference? I could use another 50-75 feet out of it.

Thank you,

Have a good day.