Re: 433 Sensors fail to update tellstick.net but ok on zwave
Posted: Fri Mar 17, 2023 9:45 am
Yes, some have wider spectrum, but i have not checked that by being close of each sensor so also the signal strenght can have an impact what we see. Is it possible that the strenght we see is actually reflecting burst lenght more than actually bandwith ?
The official center of frequency is 433.92 but still frequencies can be all over the place as: "receiver is a super-regenerative TRF reciver with only a single LC network to define its operating frequency, and it has the characteristic that it will lock onto the strongest signal it sees within +-5Mhz of its nominal frequency" - assuming Telldus is using TRF. As I have two Telldus.net units next to each other I can see the blue light to blink on both but only one can detect the protocol - for the other its perhaps "garbaged" so much that signal can not be categorized to any known protocol and therefore its not accepted ? This is just an assumption as I dont know enough how firmware works.
The official center of frequency is 433.92 but still frequencies can be all over the place as: "receiver is a super-regenerative TRF reciver with only a single LC network to define its operating frequency, and it has the characteristic that it will lock onto the strongest signal it sees within +-5Mhz of its nominal frequency" - assuming Telldus is using TRF. As I have two Telldus.net units next to each other I can see the blue light to blink on both but only one can detect the protocol - for the other its perhaps "garbaged" so much that signal can not be categorized to any known protocol and therefore its not accepted ? This is just an assumption as I dont know enough how firmware works.