FX7500 programmable maximum output power


From the datasheet FX7500 reader should support up to 31.5dBm. However I can only manage to configure it up to 29.2 as indicated in Reader.ReaderCapabilities.TransmitPowerLevelValues array. I also have the same problem with FX9600 reader but with different power values

I am using EMDK v2.9 C# and VS2008. Reader is powered via sector adaptor (power via POE limit antenna power to 30dBm).

Am I doing something wrong ?