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Post on 29-Mar-2016
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1- PDH
2- SDH
3- Modulation
4- E1
5- STM1
6- Multipath fading
7- Atmospheric losses(Tipuri de interferente cauzate de vreme rea ( ploaie), obstacole)
8- Protection types (hot standby, single, space diversity, SNCP, MSP)
9- BER (bit error rate) , SES, ES
10- RX level
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