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Reply To: Frequency Hopping System


Hi thyagarajan,

May i know your email id ?, you seem to have a indepth knowledge on RF parameters. By the way You had replied to Mr. Siva’s question,
You know the bandwidth of the GSMK filter is 67.5 and the output of the mobile is at 270.333 .Divide 270 by 67.5 you get 4 i,e you would need 4 channels in UL and 4 channels in DL thus giving u 8 timeslot per TRX.
Now tell me what is this 270.333 ? is output power of the mobile (tx pwr is 33 dBm) or is it some thing else you are referring to ?? You can mail me at