Potomac Instruments FIM-21 - Page 5

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TABLE
CONTENTS
Paragraph
Page
Ll
1.2
1.3
2.1
2.2
2.3
2.4
2.5
2.6
3.1
3.2
3,3
4.1
4.2
4,3
4,4
4.
5
4,6
4.7
4,8
4,9
4.10
SECTION
1.
GENERAL
DESCRIPTION
Scope
of
Manual
••••••
Purpose
of
Equipment
•••
:Equipment Spec
ifications
.
. .
. .
.
. .
.
. . .
.
SECT
ION
2,
OPERATION
1-1
1-1
1-1
General
. . . . . . . . . . . . . . . . .
2-1
Operating
Controls
and
Indicators.
• • • • • . • • •
2-1
FIM
Calibration
. • . . • • • • • • • • • • • •
2-2
M
easuring
Field
Strength
• • • . • • . • • • • • • •
2-4
Measur
ing
Harm
onic
Ratio
in
Dec
ibels
• • • • • • • •
2-5
R.
F.
Bridge Measurem
ents.
(Tuned
Voltmeter)
• • • •
2-6
SECTION
3 •
THEORY
OF
OPERATION
General
. . . . . . . . . . . . . . .
Block Diagram
Descript
ion.
Circuit
Description
•••••••••
SECTION
4.
MAJNTENANCE
General
.
.
.
. . .
.
.
.
.
.
.
Batt
ery
Replacement
.
. .
. .
Battery
Types
. .
.
.
.
. .
. .
LaJJIP
R
eplac
ement
.
To
Rem
ove
FIM
fro
m Case
.
.
.
.
.
To
Operate
the
FIM
With
Case
Rem
oved
IC
Re
place
ment
. . .
.
Preventive
Maintenance
. .
.
Troubleshooting
and
Re
pair
. .
. . .
Recalibration
.
.
. .
.
. .
.
.
SECTION
5.
SCHEMATIC
DIAGRAM
General
...••
iii
.
.
. . .
. . . .
.
.
.
. .
.
.
. . .
.
.
. . . . .
.
. .
. . . .
.
.
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
•
3-1
3-1
3-3
4-1
4-1
4
-1
4-1
4-2
4-3
4-3
4-3
4-5
4-S
5.1