Comtech EF Data DST User Manual

Page 64

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Digital Satellite Terminal System

Revision 1

Operation

MN/DST.IOM

A–6

Figure A-4. Minimum Symbol Rte versus Satellite Uncertainty For Multi-Carrier Applications

With a 1.0 ppm Modem














Minimum Symbol Rate (vs) Satellite Uncertainty

0

5

10

15

20

25

30

35

40

45

50

0

5

10

15

20

25

30

Satellite Uncertainty (+/- kHz)

M

in

im

u

m

S

y

m

b

o

l R

a

te

(

ksp

s)

BUC = +/- 0.02 ppm, Modem +/- 1.0 ppm

Ku-Band

LNB = +/- 3

ppm

C-Band

LNB = +/- 3 ppm

Ku-Band or C-Band

LNB = +/- 0.02 ppm

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