How To Check Signal From Garage Door Remote

Hi got a garage door remote transmitting on 40 685mhz whats the best way to read the signal on a scope or rather to check if its actually transmitting to confirm whether the remote or the receiver is dead.

How to check signal from garage door remote.

The remotes work by electronically sending a signal to the motor inside your garage allowing you to open and close the door. In order for the remote to be able to open the garage door the signal from the radio transmitter must be strong enough to reach the radio receiver in the garage. This is accomplished with a series of tiny switches inside the remote control and on the opener. If your remote works correctly check that the opener s antennae doesn t have any excess debris buildup is pointed toward the door and isn t broken.

Batteries are important when using garage remotes. Or so your garage door doesn t open when the neighbor lets the dog out. Most modern garage door openers have a coding system so that someone else with a remote can t easily get your door open with their remote. Every garage remote has a radio transmitter in it while the garage door opener has a matched radio receiver.

Troubleshooting a lost signal on your remote is as easy as resetting the old signal. Oftentimes when your garage door opener remote stops working it is because the remote transmitter has lost its signal with the motor.