30 
1. CONCLUSION 
The first purpose of our experiments was to identify and 
propose a DGPS correction diffusion system to be used 
continuously on the whole CEI area, giving satisfactorily 
accurate results. 
We saw from our experiments that LW technology of 
correction dissemination used to transmit from Podebrady 
gives good results even tested at the edge of the coverage 
area. As there are several unused LW transmitters on the 
territories of the former Soviet block, and for this reason this 
technology does not require big investments, they could be 
combined in one network, to increase coverage and improve 
data quality with a limited budget. 
In some cases, where greater accuracy is required, it will be 
necessary to provide by using local correction sources. For 
this aim, DARC seems to be a very good transmission 
system. 
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