Setup Linksys router with Tikona (not working, but working directly with Computer)

Hello im from Chennai, im using BSNL broadband and im not satisfied with it so i planning to switch tikona.But i got few doubts, they said that their antenna is outside my colony and to receive the signal they will keep a nano devise.So whats the nano devise is all about? do we get a good speed for downloading? So far hows their service and network? Thanks in advance friend :)
 
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