Dear Forum,
I am trying to overcome a problem with interference between multiple 433Mhz remote controls. I built a simple "off after delay" circuit which I installed into my motorized gate controller. It activates a wired up keyfob remote to transmit a 90 second burst to an AM receiver board that then activates a relay to keep a floodlight on for 90 secs after the gate has been activated. The problem is that while the transmitter is transmitting no other remote keyfobs can get their signal through including those to lock our car doors. I thought of changing the gate controller transmitter to the FM version but this also works on 433MHz so I am not sure if it would still interfere. Data sheet of equipment installed (HiRK 433A) attached. The light on signal only needs to be transmitted 15m - can anyone advise how I can transmit using UK approved bandwidths and not interfere with standard remotes?
I am trying to overcome a problem with interference between multiple 433Mhz remote controls. I built a simple "off after delay" circuit which I installed into my motorized gate controller. It activates a wired up keyfob remote to transmit a 90 second burst to an AM receiver board that then activates a relay to keep a floodlight on for 90 secs after the gate has been activated. The problem is that while the transmitter is transmitting no other remote keyfobs can get their signal through including those to lock our car doors. I thought of changing the gate controller transmitter to the FM version but this also works on 433MHz so I am not sure if it would still interfere. Data sheet of equipment installed (HiRK 433A) attached. The light on signal only needs to be transmitted 15m - can anyone advise how I can transmit using UK approved bandwidths and not interfere with standard remotes?
Attachments
-
152.8 KB Views: 37