Frequency

[togatown]

Owen,

All of the transceivers I find are 387-464Mhz. Where did you find 300-348Mhz modules?

[owenb321]

I got this one off Amazon: https://www.amazon.com/gp/product/B00U5TO37W
The description on that also notes that 387-464 MHz range, but I have it working at 303MHz just fine. That number may just be referring to the frequency range of the antenna that is included.

The CC1101 datasheet from TI states that it will work at "frequencies in the 300-348 MHz, 387-464 MHz and 779-928 MHz bands". I don't believe that would be different from module to module.

[togatown]

Thanks,

I'm going to take a chance on an Aliexpress unit but they are on the slow boat so I got the Amazon one to play with. Burning question though.

Does the fan controller send responses to the remote or does just the remote transmit?

My light has 3 on states, bottom light only, bottom and top light, top light only, I hope to get the forward and reverse setting working as well. I'll post my results.

[MACscr]

So you are using that same antenna that came with that amazon link for 303mhz? And you are using one to do both receiving and transmitting? And can monitor/work with multiple 303mhz fans at once?

[owenb321]

Yes, one module for tx/rx using the same antenna it came with.

It should be able to monitor/transmit to multiple fans. I only have one fan so I can't do a real field test. However, if I change the dip settings on the remote, all commands get picked up without any issues. The range might be an issue with the mismatched antenna, but I'm been able to turn the fan on/off from 3 rooms away, so it doesn't seem too bad.