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Figure 6-4. spectral inversion – Comtech EF Data C5 User Manual

Page 231

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C5/K1/K3 Integrated Satellite Terminal System

System Checkout

Rev. 0

6-7

Note the inversion of

OUT

1

and OUT

2

with

respect to IN

1

and IN

2

due to the 'HIGH MIX'

in the Down
Conversion.

DOWN CONVERSION

HIGH MIX

OUT

2

OUT

1

IN

1

IN

2

L.O.

INVERSION

FREQUENCY

Note the non inversion

of OUT

1

and OUT

2

with

respect to IN

1

and IN

2

due to the 'LOW MIX' in

the Down Conversion.

DOWN CONVERSION

LOW MIX

FREQUENCY

Non-INVERSION

OUT

2

OUT

1

L.O.

IN

2

IN

1

Note the non inversion

of OUT

1

and OUT

2

with

respect to IN

1

and IN

2

due to the 'LOW MIX' in

the Up Conversion.

UP CONVERSION

LOW MIX

FREQUENCY

L.O.

IN

1

IN

2

OUT

2

OUT

1

Non-INVERSION

Note the inversion of

OUT

1

and OUT

2

with

respect to IN

1

and IN

2

due to the 'LOW MIX' in

the Up Conversion.

UP CONVERSION

LOW MIX

FREQUENCY

OUT

2

OUT

1

L.O.

IN

1

IN

2

INVERSION

Figure 6-4. Spectral Inversion

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