Quote from: hgmahanty on October 02, 2015, 05:41:04 PM
Hello All,
I had a basic question, is it possible to have 433 Mhz node connect to 915 Mhz gateway.
I tried but it does not to work correctly always, appreciate any help.
Thanks
HG
I think you need to define what you are trying to do a little clearer. Are you using two RFM69 radios, one is designed as a 915MHz radio, and the other is designed as a 433MHz radio and you want them to 'talk' to each other?
If so, the answer is 'yes maybe', but ONLY if both radios have the same configuration parameters (ie both set to same frequency, bandwidth, frequency shift, ...) and the radio that is operating 'off-band' will have performance issues. But, if the radios are close, and everything else properly tuned to the proper frequency (antenna length, parameters, etc) they should reliably communicate.
As an example, I have one node that I use for my Mote 'Snooper' on my 433MHz network. Sometimes I need it to monitor traffic on a 915 MHz network. I just reload the SW on the Snooper to operate at 915MHz. It operates pretty well as a receiver of 915MHz traffic, but can only transmit to very close 915MHz receivers. Note that I don't change the antenna (it's still 1/4W 433MHz whip).
Tom
Thank you for the very clear explanation.