Hello,
We are currently using custom designed PCB and software to interface the Myriad RF board to an FPGA with the intention of collecting GPS signals. We have success using an RF signal generator the mimic the GPS carrier frequency, but when attempting to use an antenna we have noticed that the noise floor of our system is very high. We are seeing a noise floor with no inputs connected to the Myriad RF board of roughly -30dB.
Does anyone have any numbers for a similar test setup? (no input to Myriad RF, any combination of components such as LNA and LPF enabled or disabled). We know of a few issues in the current PCB that should hopefully reduce the noise level, but we were hoping to get a better idea of the typical Myriad noise floor as well.
Thanks a lot.