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2.2.4. Transmitter modulation masks
2.2.4.1 PCS-1900

Frequency Offset  BASE STATION               TERMINAL
(kHz)                                        (MOBILES)

                  Measurem. TX Noise Measurem. TX Noise

from   To         bandwidth Floor at bandwidth Floor at

100    200 (*)    (kHz)              offset (dBc) (kHz)  offset (dBc)
200    250 (*)
250    400 (*)    30 0,5 30 0,5
400    600 (*)
600    1200 (**)  30                 -30,0   30          -30,0
1200   1800 (**)
1800   6000 (**)  30                 -33,0   30          -33,0
>6000  (**)
                  30                 -60,0   30          -60,0

                  30                 -70,0   30          -60,0

                  30                 -73,0   30          -60,0

                  100                -75,0   100         -68,0

                  100                -80,0   100         -76,0

(*) For frequency offset values within this margin the TX Noise Floor should be linearly
interpolated

(**) For frequency offset values within this margin the TX Noise Floor is constant

Inter-American Telecommunication Commission                            13
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