We are seeing odd behavior, especially around LO frequencies of 210MHz to 240MHz that require what seem to be excessive drive levels (+8dBm) to allow the 9361s to function properly. There are some frequencies where there appears to be only ~1dB of tolerance and others where I have 20dB of tolerance. Is this a problem with the INPHI chip?
There is no documentation on the expected input level for the FMCOMMS5 external LO input. Does this vary over frequency? Please advise.