3
TABLE OF CONTENTS
1
GENERAL DESCRIPTION..................................................................................................................................................... 5
1.1
DX-3
–
I
NTERNAL
V
IEW
...................................................................................................................................................... 6
2
TECHNICAL SPECIFICATIONS.......................................................................................................................................... 7
3
UNPACKING ............................................................................................................................................................................ 8
3.1
O
PENING THE CARTON
......................................................................................................................................................... 8
3.2
O
PENING THE
DX-3
COVER
.................................................................................................................................................. 8
3.3
I
NSTALLING THE TRANSFORMER
.......................................................................................................................................... 8
4
INSTALLATION ENVIRONMENT....................................................................................................................................... 9
4.1
R
EQUIRED ENVIRONMENT
.................................................................................................................................................... 9
4.2
P
OWER REQUIREMENTS
........................................................................................................................................................ 9
5
REAR PANEL ........................................................................................................................................................................... 9
5.1
P
OWER
/
E
ARTH CONNECTIONS
............................................................................................................................................ 9
5.2
RF
CONNECTIONS
............................................................................................................................................................... 10
5.3
T
RANSCEIVER CONTROL
..................................................................................................................................................... 10
6
FRONT PANEL ...................................................................................................................................................................... 10
6.1
C
ONTROLS
......................................................................................................................................................................... 10
6.2
D
ISPLAYS
........................................................................................................................................................................... 11
7
ELECTRICAL CONNECTIONS.......................................................................................................................................... 12
7.1
C
ONNECTIONS TO
T
RANSCEIVER
/
E
XCITER
....................................................................................................................... 12
7.2
E
ARTH AND MAINS CONNECTIONS
...................................................................................................................................... 12
7.3
T
ERMINATING THE POWER CABLE
(
EXPORT VERSION
)........................................................................................................ 12
7.4
O
PERATION AT
230V,
220V,
200V
(
EXPORT VERSION
) ...................................................................................................... 12
8
DX-3 DESCRIPTION ............................................................................................................................................................. 13
8.1
RF
S
ECTION
....................................................................................................................................................................... 13
8.2
M
AINS TRANSFORMER
........................................................................................................................................................ 14
8.3
H.
V.
P
OWER
S
UPPLY
......................................................................................................................................................... 14
8.4
S
OFT START MODULE
......................................................................................................................................................... 14
8.5
S
ENSOR MODULE
................................................................................................................................................................ 14
8.6
A
NTENNA RELAY
/
QSK
MODULE
...................................................................................................................................... 14
8.7
D
ISPLAY BOARD
................................................................................................................................................................. 14
8.8
C
ONTROLLER BOARD
......................................................................................................................................................... 14
9
POWERING UP...................................................................................................................................................................... 16
10
OPERATION....................................................................................................................................................................... 16
10.1
TUNNING
PROCEDURE ................................................................................................................................................ 16
10.1.1
General...................................................................................................................................................................... 16
10.1.2
Preliminary tuning..................................................................................................................................................... 16
10.1.3
Final tuning ............................................................................................................................................................... 17
10.1.4. Potential problems during tuning.................................................................................................................................. 18
10.2
ALC
ADJUSTMENT ........................................................................................................................................................ 18
10.3
USING
YOUR
DX-3......................................................................................................................................................... 19
10.3.1
CW / RTTY and all digital modes .............................................................................................................................. 19
10.3.2
Voice modes (SSB)..................................................................................................................................................... 19
10.3.3
Hints on good linearity and efficiency....................................................................................................................... 19
11
SWITCHING THE POWER OFF..................................................................................................................................... 20
12
TROUBLESHOOTING - IF SOMETHING GOES WRONG........................................................................................ 20
12.1
N
O POWER
.......................................................................................................................................................................... 20
12.2
F
AN NOT WORKING
............................................................................................................................................................. 20
12.3
I
F THE
FAULT
LIGHT TURNS ON
........................................................................................................................................ 20
