ALCAD DMH-541 Digital Modulator HDMI and USB Installation Guide

June 11, 2024
ALCAD

ALCAD DMH-541 Digital Modulator HDMI and USB
ALCAD DMH-541 Digital Modulator HDMI and USB

FEATURES

4K UltraHD HDMI 2.2 Loop through
Hight RF Output Level
USB pen drive video player

  • Perfect image and audio synchronization
  • RF Loop through 5… 2.200 MHz
  • Video bit rate up to 30 Mbps
  • Over 36 dB MER (Modulation Error Rate)
  • Low consumption and energy saving function

AUDIO – VIDEO

VIDEO ENCODING H.264 MPEG
VIDEO INTERFACE HDMI 2.2
VIDEO RESOLUTION MODES 576p – 720p – 1080p
VIDEO BIT RATE Mbp/s 5… 30
AUDIO MODE MPEG AC3 DTS AAC

RF OUTPUT

FREQUENCY RANGE MHz 170… 230 / 470… 862
MER dB >36
RF OUTPUT LEVEL dBpV 70… 100
RF LOOP PASS THROUGH   5… 2.200 MHz Loss s 2
DVB-T  
CONSTELLATION – FEC   QPSK – 16QAM – 64QAM – 1/2 – 2/3 – 3/4 – 5/6 – 7/8
GUARD INTERVALL   1/4 – 1/8 – 1116 – 1/32
MODULATION CARRIERS   2K/8K
SELECTABLE BANDWIDTH MHz 6/ 7/ 8
DVB-C  
CONSTELLATION   16QAM – 32QAM – 64QAM – 128QAM -256QAM

GENERAL

POWER SUPPLY Volt 15VDC (External PSU 100-240VAC 50/60Hz)
POWER CONSUMPTION W 4,8 Watt Max. / 3,5 Watt Energy saving mode
DIMENSIONS mm 193x109x39h
OPERATING TEMPERATURE  0… 45

DESCRIPTION OF SYMBOLS AND ELECTRICAL SAFETY

  • The equipment complies with the CE requirements
  • The equipment is designed for indoor use only
  • Equipment grounding terminal
  • This symbol indicates that the equipment complies with the safety requirements for class  II equipment
  • To avoid the risk of electric shock, do not open the equipment.
  • The equipment is compliant with RoHS 2011/65EU
  • Dispose according to local authorities recycling processes

Safety instructions

  1. Read carefully these instructions
  2. Keep these instructions
  3. Heed all warnings
  4. Follow all instructions
  5. Do not expose this apparatus to extreme temperatures
  6. Do not install this apparatus near water or expose to rain and moisture
  7. Place the apparatus in a dry and well-aired location
  8. Install the unit on a vertical wall, or in a waterproof cabinet with a minimum IP55 rating, and fix it safely using the provided fixing plugs
  9. Connect the power adapter cord to a detachable power supply socket
  10. Unplug the apparatus during lighting storms or when unused for long time
  11. Only use accessories specified by the manufacturer
  12. Do not remove the cover without disconnecting from the mains first
  13. Ambient temperature should not be higher than 45°
  14. Please allow air circulation around the apparatus
    Safety instructions

IMPORTANT!
Place the apparatus and the power supplier in a dry and well-aired location
Install the unit on a vertical wall, or in a waterproof cabinet with a minimum IP55 rating, and fix it safely using the provided fixing plugs
Use only the power supplier provided with the amplifier.
The use of not-original power suppliers determines the not-compliance of the product and can cause malfunctions and void the warranty

DMH-541 DESCRIPTION

DMH-541 DESCRIPTION

  1. USB Type B (F.W. Upgrade)
  2. USB Type A (USB Pendrive for Video Play)
  3. Power Input 15Vdc
  4. Power Supply Status Led
  5. Confirmation key
  6. Menu navigation keys
  7. Ground point
  8. HDMI Output
  9. HDMI Input
  10. RF Input
  11. RF Output
  12. Video Signal Lock
  13. USB TS Signal
  14. HDMI Connected
DVB-T available rates (Mbit/s) in 8MHz channels

Table (1)

MODULATION FEC Coding Rate GUARD INTERVAL (TG)
1/4 1/8 1/16
QPSK 1/2 4.98
2/3 6.64 7.37
3/4 7.46 8.29
5/6 8.29 9.22
7/8 8.71 9.68
16QAM 1/2 9.95
2/3 13.27 14.75
3/4 14.93 16.59
5/6 16.59 18.43
7/8 17.42 19.35
64QAM 1/2 14.93
2/3 19.91 22.12
3/4 22.39 24.88
5/6 24.88 27.65
7/8 26.13 29.03

DVB-C Available rates (Mbit/s)

Table (2)

BANDWIDTH MODULATION
16QAM 32QAM
8MHz 25.64
6MHz 19.23

CONNECTION TO A HDMI SOURCE

  1. Connect the RF coaxial input and output cables

  2. Connect the HDMI input and output cables

  3. Connect the power supplier unit to DMH-541 and only then connect the power supplier to mains plug. Wait the end of the booting procedure to start
    programming the DMH-541

  4. If the HDMI input source is correct the Led HDMI and LOCK will be lighted on
    CONNECTION TO A HDMI SOURCE

CONNECTION TO A USB PEN DRIVE SOURCE

  1. Connect the RF coaxial input and output cables
  2. Connect the USB pen drive to the USB type A input containing a video file named media.ts
  3. Connect the power supplier unit to DMH-541 and only then connect the power supplier to mains plug. Wait the end of the booting procedure to start programming the DMH-541
  4. The Led USB TS and LOCK will be lighted on
    Note: the bitrate of the media.ts file cannot exceed the DMH-541 encoder bitrate
    CONNECTION TO A USB PEN DRIVE SOURCE

DMH-541 Programming

  1. Press to activate the display
  2. Press and hold for five seconds to enter the programming menu
    If any key is pressed for 3 minutes the display turn to standby mode. Press any key to re-activate.
    DMH-541 Programming
    DMH-541 has a built-in DVB-T/C tuner for self test. Every parameter modification is verified and stored and require from 10 to 15 seconds.
    Display Icon
  • Output channel
    Output Level
    Output LCN
    Country preset parameters

  • Video mode
    Video PID

  • Audio mode
    Audio PID

  • DVB-T
    Constellation
    Carrier
    Bandwidth
    FEC
    TG
    DVB-C
    Constellation

  • Video Resolution
    Bit Rate
    Service ID
    Transport Stream ID
    Network ID
    Original Network ID
    PMT ID
    NIT Version
    Audio Bitrate

  • EDID
    Protection Password
    Apparatus Serial number

  • Exit the programming

  • Reset to default settings

  • Service name

  • Network name

  • Provider name

OUTPUT

  • RF OUTUP
    Press to enter the OUTPUT menu.

  • OUTPUT CHANNEL
    Position the function selector > on CH and press to activate the pointer — and set the output channel.
    To confirm your selection press .

E5÷E12 / E21÷E69 Default E36
On the right of the selected channel is displayed the center frequency in MHz.

  • OUTPUT LEVEL

70÷ 100dB V (1dB step)
Position the function selector > on LEV and press to activate the pointer — and set the RF output level. To confirm your selection press .

  • OUTPUT LCN

00001 ÷ 65535
Position the function selector > on LCN and press to activate the pointer — and set LCN number required. To confirm your selection press .
If in the network there are more than one DMH-541 to avoid TSID conflict when the LCN number is changed also the TSID is automatically reassigned.

  • Country preset parameters

See Table below

AUSTRIA| AUT| GERMANY| DEU| NETHERLANDS| NLD| SLOVENIA| SVN
---|---|---|---|---|---|---|---
AUSTRALIA| AUS| GREECE| GRC| NORWAY| NOR| SPAIN| ESP
CROATIA| HRV| HUNGARY| HUN| NEW ZEALAND| NZL| SWEDEN| SWE
CZECH REP| CZE| ISRAEL| ISR| POLAND| POL| SWITZERLAND| CHE
DENMARK| DNK| IRELAND| IRL| PORTUGAL| PRT| UNITED KINGDOM| GBR
ESTONIA| EST| ITALY| ITA| RUSSIA| RUS|  |
FINLAND| FIN| LATVIA| LVA| SINGAPORE| SGP|  |
FRANCE| FRA| MALAYSIA| MYS| SLOVAKIA| SVK|  |

AUDIO VIDEO SETUP

  • VIDEO SET UP

Press to enter the menu to select the video compression required.

  • VIDEO MODE

H264 / MPEG
Position the function selector > on MODE and press to activate the pointer — and select the VIDEO MODE. To confirm your selection press .

  • VIDEO PID

00001 ÷ 65535
Position the function selector > on MODE and press to activate the pointer — and set VPID. To confirm your selection press .

  • AUDIO

Press to enter the AUDIO menu.

  • AUDIO MODE

MPEG / AC / DTS / AAC
Press to enter the menu to select the AUDIO MODE. Select and confirm your choice pressing .

  • AUDIO PID

00001 ÷ 65535
Position the function selector on APID Press to activate the pointer — and set APID. To confirm your selection press .

MODULATION

Press to enter the MODULATION menu.

  • MODULATION MODE

DVB-T – DVB-C
Position the function selector > on DVB and press to activate the pointer — and select the DVB-Tor DVB-C modulation mode. To confirm your selection press .

DVB-T
  • CONSTELLATION

QPSK – 16 – 64QAM
Position the function selector > on COST and press to activate the pointer — and select the constellation. To confirm your selection press .

  • MODULATION CARRIER

2K – 8K
Position the function selector > on CARR and press to activate the pointer — and select the 2K or 8K carrier. To confirm your selection press .

  • BANDWIDTH

6 – 7 – 8 MHz
Position the function selector > on BW and press to activate the pointer — and select the bandwidth.
To confirm your selection press .
The channel bandwidth is pre-set in relationship to the country channeling.

  • FEC

1/2 – 2/3 – 3/4 – 5/6 – 7/8
Position the function selector > on FEC and press to activate the pointer — and select the Forward Error Correction value. To confirm your selection press .

  • TG

1/32 – 1/16 – 1/8 – 1/4
Position the function selector > on Tg and press to activate the pointer — and select the Tg value.
To confirm your selection press .

DVB-C
  • CONSTELLATION

16 – 32 – 64 – 128 – 256QAM
Position the function selector > on COST and press to activate the pointer — and select the constellation. To confirm your selection press .

ENCODER

Press to enter the ENCODER menu Line up the function selector > to the parameter and press to activate the pointer — and select the value pressing . To confirm the selection press .

  • Video Resolution

576 – 720 – 1080

  • Bit Rate

4000… 30.000 Mbps See Table (1) or (2)

  • Service ID

00001÷65535

  • Transport Stream ID

00001÷65535

  • Network ID

00001÷65535

  • Original Network ID

00001÷65535

  • PMT ID

00001÷65535

  • NIT Version

001÷999

  • Audio Bitrate

64-96-112-128-160-192-224-256-320-384 Kbps

ADVANCED

Press to enter the ENCODER menu
Line up the function selector > to the parameter and press to activate the pointer — and select the value pressing . To confirm the selection press .

  • EDID

INT2K; INT4K; COPY
INT2K= HDMI Bypass HD only
INT4K= HDMI Bypass 4K and HD
COPY= Bypass resolution detected from TV input HDMI

  • Protection Password

  • Apparatus Serial number

EXIT

To exit the setting procedure select EXIT and press . Select YES and press to confirm.

To continue the DMH-541 setting select NO and press to confirm.

RESET

To cancel all settings select the RESET menu pressing and Select YES and confirm . All the factory settings will be restored and the DMH-541 rebooted.

SERVICE NAME

Press to enter SERVICE NAME menu
Line up the function selector > to the parameter and press to activate the pointer — and select the digit pressing . To confirm press .

The preset service name is ALCADSERV but can assigned a different name with up to 11 digits

NETWORK NAME

Press  to enter NETWORK NAME menu
Line up the function selector > to the parameter and press to activate the pointer — and select the digit pressing . To confirm press .

PROVIDER NAME

Press to enter PROVIDER NAME menu
Line up the function selector > to the parameter and press to activate the pointer — and select the digit pressing . To confirm press .

CUSTOMER SERVICE

ALCAD Electronics, S.L.
Pol. Ind. Arreche-Ugalde, 1
Apdo. 455 I 20305 IRUN – Spain
Tel. (+34) 943 63 96 60
info@alcad.net

References

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