DTTB System Multipath Character - Unequal NF

0

3

15

30

(15)

19

35

Multipath Level ( - dB)

(Single Echo)

8VSB

COFDM

(64QAM,2/3,1/8)

C/N Threshold (dB)

Outdoor Antenna

W.T.Dickson 29 March 98

(Conditions: Static multipath,Unequal Rx NF, No Co-channel or impulse interference)

(31)

With NF=(X+4)dB

With NF=XdB

Picture

No Picture

(above curve)

(Below curve)

Indoor Antenna

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