Add to ORKGS razvojem konstrukcije magnetometara povećala se njihova osjetljivost. Time je omogućeno mjerenje i slabijeg intenziteta magnetskog polja Zemlje (tzv, korisni signal), ali je na kvalitetu rezultata mjerenja povećan utjecaj raznih čimbenika (tzv. šum smetnji). Zbog toga se pristupilo analizi utjecaja nekih čimbenika na kvalitetu mjerenja.The advanced design technology improved the sensitivity of the Earth\u27s Magnetic field measuring instruments. Hence it is possible to measure also the lower intensity values of the Earth\u27s Magnetic field, however then the number of different factors which may influence the quality of measurement also increases. This paper deals with the analyse of the degree of influence that some of the factors involv...