SatKing DM-1CH User manual

DM-1CH
SD DVB-T MODULATOR
INSTRUCTION MANUAL

2. Caution Statements and Table of Contents
Table of Contents
2. Caution Statements and Table of ontents
3. Important Safety Instru tions
4. Important Safety Instru tions (Cont.)
5. Spe ifi ation
6. General Des ription / Features
7. Front Panel Control
8. Rear Panel Conne tions
9. Software Flow Chart
10. Software Flow Chart (Cont.)
11. Australia Air Channels, VHF and UHF
12. Re ommended MPEG-2 Code Rate

3. Important Safety Instru tions
1. Read Instructions—All the safety and operating Instructions should be read before the product is operated.
2. Retain Instructions—The safety and operating instructions should be retained for future reference.
3. Heed Warnings—All warnings on the product and in the operating instructions should be adhered to.
4. Follow instructions - All operating and use instructions should be followed.
5. Cleaning—Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleansers. Use a
damp cloth for cleaning.
6. Attachments—Do not use attachments that are not recommended by the product manufacturer as they may cause hazards.
7. Water and Moisture—Do not use this product near water—for example, near a bathtub, wash bowl, kitchen sink or laundry tub;
in a wet basement; or near a swimming pool; and the like.
8. Accessories—Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing
serious injury to a child or adult and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table
recommended by the manufacturer, or sold with the product. Any mounting of the product should follow the manufacturer's
instructions, and should use a mounting accessory recommended by the manufacturer.
9. A product and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the
product and cart combination to overturn.
10. Ventilation—Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and
to protect it from overheating, and these openings must not be blocked or covered. The openings should never be blocked by
placing the product on a bed, sofa, rug, or similar surface. This product should not be placed in a built-in installation such as
bookcase or rack unless proper ventilation is provided or the manufacturer's instructions have been adhered to.
11. Power Sources—This product should be operated only from the type of power source indicated on the marking label. If you
are not sure of the type of power supplied to your home, consult your product dealer or local power company. For products
intended to operate from battery power, or other sources, refer to the operating instructions.
12. Grounding or Polarization—This product may be equipped with a polarized alternating-current line plug (a plug having one
blade wider than the other) This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to insert
the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete
outlet. Do not defeat the safety purpose of the polarized plug. Alternate Warnings—If this product is equipped with a three-wire
grounding-type plug, a plug having a third (grounding) pin, the plug will only fit into a grounding-type power outlet. This is a safety
feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat
the safety purpose of the grounding-type plug.
13. Power-Cord Protection—Power-supply cords should be routed so that they are not likely to be walked on or pinched by items
placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit
from the product.
14. Outdoor Antenna Grounding—If an outside antenna or cable system Is connected to the product, be sure the antenna or cable
system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the
National Electrical Code, ANSI/NFPA 70, provides information with regard to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna-discharge
unit, connection to grounding electrodes, and requirements for the grounding electrode. See Figure A.
15. Lightning—For added protection for this product during a lightning storm, or when it is left unattended and unused for long
periods of time, unplug It from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product
due to lightning and power-line surges.
16. Power Lines—An outside antenna system should not be located in the vicinity of overhead power lines, other electric light or
power circuits, where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should
be taken to keep from touching such power lines or circuits as contact with them may be fatal.
17. Overloading—Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of
fire or electric shock.

4. Important Safety Instru tions ( ont.)
18. Object and Liquid Entry—Never push objects of any kind into this product through openings as they may touch dangerous
voltage points or short-out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product.
19. Servicing—Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service personnel.
20. Damage Requiring Service—Unplug this product from the wall outlet and refer servicing to qualified service personnel under
the following conditions:
A. When the power-supply cord or plug is damaged,
B. If liquid has been spilled, or objects have fallen into the product,
C. If the product has been exposed to rain or water,
D. If the product does not operate normally by following the operating instructions. Adjust only those controls that are
covered by the operating instructions as an improper adjustment of other controls may result in damage and will often
require extensive work by a qualified technician to restore the product to its normal operation,
E. If the product has been dropped or damaged in anyway, and
F. When the product exhibits a distinct change in performance—this indicates a need for service.
21. Replacement Parts—When replacement parts are required, be sure the service technician has used replacement parts
specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutes may result in fire,
electric shock or other hazards.
22. Safety Check—Upon completion of any service or repairs to this product, ask the service technician to perform safety checks
to determine that the product is in proper operating condition.
23. Wall or Ceiling Mounting—The product should be mounted to a wall or ceiling only as recommended by the manufacturer.
24. Heat—The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products
(including amplifiers) that produce heat.

5. Spe ifi ation
Input Format CVBS
Encoding Format MPEG-2 Video (ISO/IEC 13 1 -2)
MPEG2 MP@ML
Video Resolutions 576i PAL / 4 0i NTSC
Video
VideoVideo
Video
Connector RCA (75 Ohm)
Input Format Stereo L/R channel
Encoding Format MPEG-1 Audio Layer II (ISO/IEC 11172-3)
Audio
AudioAudio
Audio
Connector RCA (75 Ohm)
Standard DVB-T (ETSI EN 300 744)
Bandwidth 6 / 7 / MHz
Carriers 2K / K
Constellation QPSK / 16QAM / 64QAM
Guard Interval 1/4 , 1/ , 1/16, 1/32
Code Rate 1/2, 2/3, 3/4, 5/6, 7/
Frequency Range 50 ~ 60 MHz
Output Level 75~90dBuV
Modulator
ModulatorModulator
Modulator
MER 35 dB
PID Setting Video / Audio / PCR
Channel Name 15 Words
System
SystemSystem
System
Logical Channel Number Number up to 1023
Control
ControlControl
Control Local Operation LCD Panel
Dimensions 173mm x 165mm x 52mm
Weight (with Adaptor) 0.75 kg
General
GeneralGeneral
General
Power Source DC12V (10.5 to 13.0V) SMPS (100-240 VAC/50Hz)

6. General Des ription / Features
General Description
Features
Single input modulator that converts analogue A/V source to a DVB-T channel
Programmable channel name and logical channel number insertion (LCN)
Multiple video format compatibility including 576i(PAL) and 4 0i(NTSC)
Multiple audio format compatibility including MPEG-1 Layer II
Frequency range : 50~ 60MHz
High output level up to 90 dBuV
Carriers 2K and K
Programmable video/audio/PCR PID
User friendly setup and control
Compact and wall mountable
DM-1CH is a composite video input standard definition DVB-T modulator which provides COFDM
RF signal in range of 50- 60MHz.
It is designed to achieve 576i/4 0i (PAL/NTSC) by using MPEG2 low latency encoding engine and
state-of-the-art DVB-T modulation technologies.
It is an excellent choice to transport video/audio signals from TV satellite receivers, surveillance
camera or video/media players to a LCD TV or set-top box.
It an be used in series with other DM-1CH so the number of hannels in the oaxial
able on the SMATV system an be in reased as desired.

7. Front Panel Controls
F1: LCD Display - This display presents the selected menu screen and the parameter settings.
The backlight in the display is on when power is applied.
F2: LED – These lights indicate the status, which from left to right is power, normal and video.
F3: Left and Right Buttons – Use the left and right arrow buttons to navigate from screen to
screen to view a parameter setting within a particular program group. These buttons are
operational in the view mode or the program mode. Using only these buttons will not change any
parameter setting.
F4: Up and Down Buttons – Use the up and down arrow buttons to change the value of a viewed
parameter setting. The unit must be in the program mode in order for these buttons to become
active for changing a parameter setting.
F5: OK Button - Use the ENTER button to enter the program mode or to save and load a new
setting or settings after adjustment. Hold for approximately 2 seconds until the bottom line of the
display starts to flash to enter the program mode. After entering the program mode, momentarily
pressing the OK button again will load and save any settings that may have been changed using
the Up and Down buttons.
F1
F2
F
4
F
3
F
5

DC IN+12VDC
Audio CVBS
RF Out ANT IN
8. Rear Panel Conne tions
RF Out: 50~860MHz channel frequency, 75~90dBuV output level
ANT In: Terrestrial Digital signal input
Video Interface:
CVBS: Composited video input supports NTSC and PAL
Audio Interface:
Stereo Left: Left audio channel
Stereo Right: Right audio channel
Power Input: DC 12V, 2A

9. Software Flow Chart

10. Software Flow Chart (Cont.)

11. Australia Television Frequen ies/Channels (MHz)

12. Re ommended MPEG-2 Code Rate
Recommended MPEG-2 Code Rate
6MHz Bandwidth 7MHz Bandwidth 8MHz Bandwidth
Guard Interval Guard Interval Guard Interval
Modulation
Constellation
FEC
1/4
1/8
1/16
1/32
1/4
1/8
1/16
1/32
1/4
1/8
1/16
1/32
1/2
The weak ability of error-correcting and anti-interference in this area 6.03
2/3
6.03
5.80
6.45
6.83
7.03
6.64
7.37
7.81
8.04
3/4
6.22
6.58
6.78
6.53
7.25
7.68
7.91
7.46
8.29
8.78
9.05
5/6
6.22
6.91
7.31
7.54
7.25
8.06
8.53
8.79
8.29
9.22
9.76
10.05
QPSK
7/8
6.53
7.25
7.68
7.91
7.62
8.46
8.96
9.23
8.71
9.68
10.25
10.56
1/2
7.46
8.29
8.78
9.04
8.70
9.67
10.24
10.55
9.95
11.06
11.71
12.06
2/3
9.95
11.05
11.70
12.06
11.61
12.90
13.66
14.07
13.27
14.75
15.61
16.09
3/4
11.19
12.44
13.17
13.57
13.06
14.51
15.36
15.83
14.93
16.59
17.56
18.10
5/6
12.44
13.82
14.63
15.08
14.51
16.12
17.07
17.59
16.59
18.43
19.52
20.11
16QAM
7/8
13.06
14.51
15.36
15.83
15.24
16.93
17.93
18.47
17.42
19.35
20.49
21.11
1/2
11.19
12.44
13.17
13.57
13.06
14.51
15.36
15.83
14.93
16.59
17.56
18.10
2/3
14.92
16.58
17.56
18.09
17.41
19.35
20.49
21.11
19.91
22.12
23.42
24.13
3/4
16.79
18.66
19.76
20.35
19.59
21.77
23.05
23.75
22.39
24.88
26.35
27.14
5/6
18.66
20.73
21.95
22.62
21.77
24.19
25.61
26.39
24.88
27.65
29.27
30.16
64QAM
7/8
19.59
21.77
23.05
23.75
22.86
25.40
26.89
27.71
26.13
29.03
30.74
31.67