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Receive levels – Comtech EF Data MIDAS Transmit and Receive Levels User Manual

Page 12

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Transmit and Receive Levels, Operator’s Guide, Rev.0

Introduction 1-2

R

R

e

e

c

c

e

e

i

i

v

v

e

e

L

L

e

e

v

v

e

e

l

l

s

s

Procedure

From any earth station generate a CW in the space segment allocated for the
network under test. Make sure that the power level of the CW does not saturate
the satellite. Measure and record the level of the CW across the receive path in
the site under test.

U/C

SSPA /

HPA

Σ

MODEM

J

I

H

G

F

E

D C B

A

Point

Device

Value ( dBm)

A

Modem output

B

Combiner input

C

Combiner att.

D

Combiner output

E

IFL loss

F

U/C input

G

U/C gain

H

U/C output

I

W/G loss

J

SSPA/HPA input

K

SSPA/HPA output

K

A

LNA output

B

Line loss

C

D/C input

D

D/C gain

E

D/C ouput

F

IFL loss

G

Splitter input

H

Splitter loss

I

Splitter input

J

Modem input

D/C

LNA

MODEM

A

B

C

D

E

F

G H I

J