I have a projekt where I use an MSP430F2350 together with an CC1101 Transceiver.
I am using the reference design. In order to save some components I used the Johanson Balun Filter for CC11xx chips for 868 MHz.
I programmed the CC1101 according to the register values of SmartRF Studio for 868 MHz.
Now when I only turn on the carrier (STX Strobe) and connect my board to an spectrum analyzer I see the carrier frequency at 830 MHz.
Its the same case on both of my boards that I built.
Does anybody have ideas where to look for the mistake?