Typical coarse agc voltage characteristic – Comtech EF Data CDM-550T User Manual

Page 116

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CDM-550T Satellite Modem

Revision 3

Summary Of Specifications

MN/CDM550T.IOM

14–6

Typical Coarse AGC voltage Characteristic

Coarse AGC Voltage - Pin 2 of rear panel alarms connector (DB 15 male)

In

p

u

t

S

ig

n

a

l

p

o

w

er

in

s

el

e

ct

ed

IF

fi

lt

er

ba

n

d

w

id

th

-50

-45

-40

-35

-30

-25

-20

-15

-10

-5

0

0

1

2

3

4

5

6

7

8

9

10

11

For Symbol Rates >300 ksym/sec IF BW = 3.5 MHz

For Symbol Rates <33 ksym/sec IF BW = 110 kHz

For Symbol Rates > 33 k and < 300 ksym/sec IF BW = 700 kHz

Composite input level

Alarm Threshold

For input levels < -40 dBm AGC

functions are performed in the

digital demod

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