ar5413GetMinPower
*minPow = ar5413GetMinPower(ah, &data[0]);
*minPow = ar5413GetMinPower(ah, &data[numChannels - 1]);
totalMin = ar5413GetMinPower(ah, &data[i]) - ar5413GetMinPower(ah, &data[last]);
ar5413GetMinPower(ah, &data[last])*totalD)/totalD);
*minPow = ar5413GetMinPower(ah, &data[i]);