One Radio Frequency coil (28 and 30) the inspection territory (14) is arranged at least inside. The Radio Frequency coil (28 and 30), with the radio, the radio transceiver which is annexed (60 and 64 62 and 66) from the spectrum spread calibration signal is received, the said in the radio transceiver which is annexed the data of the plural channels the spectrum spread data (the pilot data) is transmitted with the signal. Channel appraisal section (104 and 106), radio transceiver (60 and 64 62 and 66) with the coil (28 and 30) with on the basis of the calibration signal between, the signal strength quality which depends on frequency is appraised. The signal strength adjustment section (108 and 110), the data signal which is transmitted, it is compensated on the basis of the signal quality which is appraised from the calibration signal which is received, in order for the data signal where the frequency dependancy is compensated with that to be formed, for example the adjustment which depends on frequency in data signal strength (, pureikoraizeshiyon) it does.少なくとも1つの無線周波数コイル(28、30)が検査領域(14)内に配置される。無線周波数コイル(28、30)は、無線で、付随する無線送受信器(60、64;62、66)からスペクトル拡散較正信号を受信し、該付随する無線送受信器に複数チャネルのデータをスペクトル拡散データ(パイロットデータ)信号で送信する。チャネル評価部(104、106)が、無線送受信器(60、64;62、66)とコイル(28、30)との間の較正信号に基づいて、周波数に依存した信号強度特性を評価する。信号強度調整部(108、110)が、送信されるデータ信号が、受信した較正信号から評価された信号特性に基づいて補償され、それにより周波数依存性が補償されたデータ信号が生成されるよう、データ信号強度に周波数に依存した調整(例えば、プレイコライゼーション)を行う。
