On Kislovodsk astronomical station filing of modifications of two components of a magnetic field of Earth X and Y, with the help of magnetometer SAM which basis is sensor FGM-3 of Speake und Co. Ltd. ( www.speakesensors.com) corporation from the Great Britain is carried on. The computing circuit is microcontroller PIC of Microchip 16F877-20 corporation / P with a clock rate 16 Мгц.

Other parameters of the device:
* Measuring field: +/-50000nT;
* Sensitivity 1-2nT;
* A time resolution 1sec.;
* Handing over of measuring values on lighted display LCD;
* Handing over of measuring values on the computer, through RS-232 interface;
* A possibility of programming of the microcontroller through RS-232 interface;
* A presentation of information in real time on a site of Internet every 10 minutes;
* A supply voltage: 12V DC;
* A current consumption: 60..70mA.