Sailor AT2112 Technical Manual
AT2112
1
1.1
1.2
1.3
2
2.1
2.2
2.3
3
3.1
3.2
3.3
3.4
3.5
TECHNICAL
MANUAL
FOR
AERIAL
COUPLER AT2112
PART NO. 802112
CONTENTS
GENERAL INFORMATION
INTRODUCTION
PRINCIPLE OF OPERATION
ANDBLOCK
DIAGRAM
TECHNICAL DATA
INSTALLATION
DIMENSIONS AND DRILLING PLAN
ELECTRICAL CONNECTION AND ASSEMBLING
AERIAL AND GROUND
SERVICE
MAINTENANCE
ALIGNMENT INSTRUCTIONS
PROPOSAL FOR NECESSARY MEASURING INSTRUMENTS
TROUBLE SHOOTING
FUNCTION CHECK
1-1
1-1
1-1
2-1
2-2
2-3
3-1
3-1
3-1
3-1
3-1
9509
4
4.1
5
5.1
5.2
6
MECHANICAL DESCRIPTION
MECHANICAL ASSEMBLING./ DISASSEMBLING AND UNITS
LOCATION
CIRCUIT DESCRIPTION AND SCHEMATIC DIAGRAMS
AERIAL CURRENT DETECTOR (MODULE
1)
PART NO. 626641
MAIN SCHEMATIC DIAGRAM AT2112
PARTS LISTS
4-1
5-1
5-5
C\J
,.....
,.....
C\J
~I
a:
w
_J
a..
:::::>
0 1
ü
_J
<(
a:
w
<(
a:
0
LL
_J
<(
::::>
z
<(
~
_J
<(
ü
z
I
ü
w
1-
C\I
,...
,...
C'\I
1-
<C
AT2112
1
1.1
1.2
1.3
GENERAL INFORMATION
INTRODUCTION
PRINCIPLE OF OPERATION AND BLOCK DIAGRAM
TECHNICAL DATA
1-1
1-1
1-1
1-1
AT2112
1 GENERAL INFORMATION
1.1 INTRODUCTION
This section gives you all necessary information to make service of this unit down to component level.
1.2 PRINCIPLE OF OPERATION AND BLOCK DIAGRAM
The aerial coupler is controlled from the
TX
processor.
The aerial coupler tunes the aerial impedance to fit the 50 ohm impedance of the PA unit.
is
The impedance is measured at the output of the PA unit. lt
2,
typically SWR = 1.4.
4:1
The aerial coupler has three main parts, a
a series coil, which can be tuned
in
can be tuned
The aerial coupler has
steps. The value of the coil and the capacitor
an
in
steps
impedance matching transformer
impedance transformer at the input at the coupler, then
as
well
as
continuously, and at last a parallel capacitor, which
always possible to tune an SWR less than
is
controlled in the
(TR1
-1) for the receiver for frequencies
TX
processor.
lower than 4MHz.
is
At the output there
a current transformer (TR2-1) and a detector. The output voltage is fed to the aerial
current meter at RE2100.
RFFROM
TRANSMITTER
RE1
4:1
SERIE RE12
COIL
E-CUR.
DET.
RE2
RE3
28486
4:1
1.3 TECHNICAL DATA
Max handling Power:
Aerial:
Temperature Range: -25°C to +70°C
Tuning Time:
1200W PEP
Wire
or
whip aerial, 9 - 16 metres length
Typical less than 2 sec.
Learn mode up to approx. 3 minutes
PARALL
CAP.
PAGE
1-1
AT2112
2
2.1
2.2
2.3
DIMENSIONS AND DRILLING PLAN
ELECTRICAL CONNECTION AND ASSEMBLING
AERIAL AND GROUND
/
2-1
2-1
2-2
2-3
2 INSTALLATION
2.1
DIMENSIONS AND DRILLING PLAN
r-
1 Free
1
1
1
1
0 1
-
-
-a~
for aerial E
spd
through~
fee
0
----,
E
LO
,.._
AT2112
1
1
1
1
1
1 0
20.5mm
0 1
1
1
0
0
Marking of 4 pcs. 08mm
for M6 or 5/16" screws
0
0 0
179mm
E
E
t--.
lO
..q--
20.5mm
0
0
0
0
L
4~0-27535A
150.50
J
1
1
1
L
___________
_
E
E
0
lO
C\J
~
c
CIS
C">
.......
:::>
-o _
"'-
·-
a.
Q)
0
~(i;
->
>-o
«s
E
(/)
Q)
(/)
.....
Q)
.....
Oo
a>-
c
.!:!.?
____
_J
PAGE
2-1
2
INST
ALLA
Tl
ON
2.2 ELECTRICAL CONNECTION AND ASSEMBLING
AT2112
GABLE
MOUNTING
Triaxialcable
Multicable
DETAILS
FOR
AT2112
~--'-<01
~
0
0
~---'-<
0
0
0
Tol
e used for extra
m lticable when length
Ion
er
than 200
m.
Outer screen
not
to be grounded
inner screen
must
be
grounded
28487
MUL
Lead
The
numbers
board
MUL
WIRE
TIGABLE:
9-16
incl.tobe
in
in
question
TIGABLE:
length
1 100 -200
STRIPPING
18.00
plug
(control
Max.
100
FOR
connected
for
AT2112
1,
control
diameter 0 14.5
m
m
MUL
TIGABLE.
on
this
side.
correspond
2,
etc.).
mm.
type
16 X 0.5°
18x0.5°
Terminal
15
Lead
1-8
ind. tobe connected
with
the
numbers
have 3 leads
WIRESTRIPPING
in
~
- 1 -
~
on
the
parralel.
30mm _
1
5mm 1
on
rear
terminal block
FORTRIAXIAL
65mm
55mm
1
side.
at
the
GABLE
1
connection
H1213.
28494
PAGE
2-2
Zake
sure that lnsuiation
is
free.
28495
2 INSTALLATION
AT2112
2.3 AERIAL AND GROUND
AERIAL
Most important for good communication
aerial coupler AT2112 mounted outdoors, close to the footpoint of the aerial and the aerial placed
as
high and free
AERIAL LENGTH
Max. length
AT2112 to the top
lf the transmitter tias to work mainly on frequencies below
is recommended.
lf the transmitter has
recommended.
GROUND
The grounding points
god contact with the ground,
AT2112 has to
lf a metal wheel house, weid up a pillar for AT2112 and bolt it
ground for your antenna system.
as
possible. The aerial coupler AT2112 has to
16
meters, min. length 9 meters. The aerial length
of
the aerial.
to
work mainly on frequencies higher than 4 MHz
on
AT2112 are the four mounting foots. lt
eg.
be
grounded at the footpoint of the aerial.
is
the aerial. The best efficiency of the aerial will
the wheel house.
be
with the
be
grounded carefully.
is
measured from the insulator on
4 MHz a total aerial length of 15 meters
an
8.5 meters whip aerial is
is
must important that these are
to
the pillar. This way you get the best
in
lf a wooden or fibre glass boat, connect
aerial coupler with a copper strip
an
can also make
Example
1.
artificial ground under the aerial coupler
AT2112 mounted
(100 x 0.5 mm), making the copper strip as short
on
top of a wheel house with a whip aerial.
Whip
aerial
all
accessible metal parts together and connect them to the
as
possible. You
as
shown in example
5.
9m
AT2112 has to
the two lower mounting holes.
be
grounded through
4-0-25234
PAGE 2-3
2 INSTALLATION
AT2112
Example
lnsu/afor
Strain
2.
AT2112 mounted on top of a wheel house with wire aerial.
eg.
H23
rei/;ef
4-0-25235
AT 2112 has
tobe
grounded to the mast
if
a
meta! mast.
lf the mast
is
higher than 8 meters, then the
coax cable works as ground and acceptable
performance will
be
obtained.
lf the mast is less than 8 meters, then a copper strip (100 x 0.5 mm) has to connected from
AT2112 to ground.
Example
3.
AT2112 mounted on top
Aerial
C.Oup/er
h.
or
a mast.
PAGE 2-4
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