14^th October 2020.

The reliability increasing of the data download process was the purpose of visit to TALA (Talas city) GPS station on 22-24^th September. The second purpose was to decrease the expenses for data download through the intertoll trunk. Modernization arrangements were made by the Group of New Technologies Introduction (GNTI) leading engineer Sergey Konovalov.

The intertoll trunk communication channel troubles appeared periodically before of the old phone radio extender. The line of sight between RS RAS and 21t Phone Station disturbs some times.

The GSM 900/1800МГц cellular modem TELEOFIS RX100-R2В was bought in Moscow. The modem firmware was update after interaction with supplier. Many program changes were made in the GPS server located in the communication room. The data transfer testing was made at RS RAS. O! cellular provider is used. The modem and external antenna were installed at GPS station. The data download process through cellular network starts by GPS server at first. The cellular data transfer is cheaper as intertoll trunk transfer. The intertoll trunk transfer start at second time if all the data was not download. The data residual downloads in this case.

The expenses will be decrease in terms of numbers about 9-11 times after some week’s usage experience. Expected month’s costs are 300 soms. 3500 soms are the costs for the month’s intertoll trunk usage.

6 Sonnenschein А600 batteries (500Ah, 2V, 1998 year production, 22 years usage) were change by one gel 100Ah battery manufactured in Saint Petersburg. 22 years usage is a perfect parameter for the Sonnenschein gel batteries.