433 vs 800Mhz mixed modules

[bird_e]

I have a bunch of moteinos that are mixed between 800 and 433 how can I tell them apart?

Thanks
Bob

[Felix]

Generally the 915mhz always have grey dots on the radio chip.
433 was white dots longer ago, now they have gold dots.
See the transceiver guide to help determine what radio you have.