CC1101: CC1101 433mhz Reference design to be used with 345mhz

Thanks, I understand that a 315mhz design can be used for 345mhz.

Let me explain the need better. We would like the design to receive 345mhz and 433mhz signals with one CC1101. It would work with 2 CC1101 for sure, but so as to optimize the product, if both frequencies could be supported with one design, it would be great.

You can use the 433 MHz ref design for 345 MHz but with a not optimal performance. Typically output power and harmonics will most likely be different on the lower frequency. What is the spec/ requirements on 345 MHz and 433 MHz for sensitivity, output power and harmonics? 

I can potentially measure on a couple of EM (given that I find some) but that would require some information on the business case. Which datarate do you plan to use? 

Thanks for your answer. I will need to do some research to find that information.