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Motorola R-2001A Service Manual page 177

Communications system analyzer

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Manual (248 pages)

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..------

--

-

------

INPUT PROTECTION AND POWER METER

RF IN PWA

P1

1

A11A1

AF

IN

/

OUT

I

I

J1

>-~~~----~----r----------------------<h-

1

I

U101

I

I

:

U102

:

~M~ s;~--'

DET

I

~

OVER TEMP

:

<

2

WATTMTREN

I

INPWR

_ _ _ _

j

-vv~

.

I

I

P1 -14

DET

1

~

I

IN

PROTECT

ACT

7

-

-~

WIDEBAND

AMP

;DCONVERTER

- - - -

P2

)

AT0-13

,.,

2-15

STEP

ATTEN

I

I

I

I

I

,

,

r

I

I

I

I

4

SYNTH RF

I

I

I

I

~---+------

16

HIILO

BAND SEL

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I

--

M201

R,.('""AI

L

I

I

I

I

I

6

I

AM MOD

•

DC REF

~2 0 7

AMPL

VAEF

-------

--

--

--

~--

I

I

I

I

I

I

1

10.7

MHz

IF

J

I

ALC VOLT

P1

13 LVL

I

CARRIER

•

MOD

LVL :

<

21

I

I

I

01

_Tf

i

1

I

"""'""T (

J

I

1

:

2/

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OFFSET COARSE TUNE

12/ .

3

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45 MHz OFFSET

EN

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4/

1

0-10 MHz OFFSET EN

I

Fi

gure 17-1

.

RF Input Module

A11 Block Diagram

OFFSET

osc

I

OFFSET

FREQ

"

8521-19

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