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HDMI to COFDM (DVB-T) Modulator: ST-6504 (4 HDMI channels to 1 DVB-T MUX)

Code: R86804

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Availability: In stock

Including VAT 1,937.87 EUR Disc. 0 %


View of the ST-6504 R86804 modulator
View of the ST-6504 R86804 modulator
View of the rear panel (connectors)
View of the rear panel (connectors)
View of the included accessories
View of the included accessories
Key features
  • Four-channel DVB-T encoder and modulator
  • Four HDMI inputs
  • Conversion of four HDMI signals from any sources into one digital RF multiplex
  • H.264 video compression with 5 Mbps bit rate of each of the four streams
  • Perfect for distributing high quality HD signals
  • Ideal for shared TV antenna systems, hotels, electronic stores, shopping malls, pubs etc.
  • Easy to install, configure and operate
  • Suitable for mounting in a 19" RACK cabinet
ST-6504 R86804 modulator is a multipurpose device that encodes and modulates four HDMI signals into one DVB-T multiplex. Aside from four HDMI inputs and RF OUT output, the device has RJ-45 port for configuration purposes.
The device has four audio/video channels (four HDMI inputs). The output DVB-T RF channel (one digital multiplex) carrying all the channels can be combined with any DVB-T signals distributed in an existing MATV/SMATV system in a multi-dwelling unit, hotel, hospital, shopping mall etc. High quality of the output signals is guaranteed by H.264 video compression with 5 Mbps bit rate of each of the four streams.
Of course, the source signal may also come from a multimedia player, DVR, Blu-ray player, PC, STB etc. The modulator can distribute high quality content in the form of DVB-T multiplex via typical RF coaxial cables used in antenna and CCTV systems.
RF modulators are not used only in antenna systems (MATV/SMATV). Sometimes, the distribution of signal A/V signals via coaxial cable (after conversion to RF signal) is much simpler and less expensive than other solutions - especially in situations where the signal has to reach multiple points (receivers). An example is an electronics store, where an HDMI -> DVB-T modulator eliminates the problems with splitters and tens of HDMI cables that could be used for the distribution of the demonstration content to tens of televisions.
Increasingly, larger antenna devices are designed for placing in RACK cabinets to ensure highest installation standards and protection against accidental damages. The housing of the modulator is compliant with RACK standard.
All parameters can be set via RJ-45 port with the use of web browser (the default IP address: 192.168.15, password: 1234) or with buttons (and shown by the display located on the front panel of the modulator).
  • Hospitals
    • TV for patients
    • transmission from the operating rooms (for documentary/professional/scientific/educational purposes)
    • education of students
    • video monitoring
    • advertising
  • Stores and shopping malls
    • promotional channels
    • distribution of content from DVD/Blu-ray players
    • distribution of HD/SD TV channels
    • commercials
  • Ships, large yachts, ferries
    • on-board TV from media players
    • news channels
    • GPS/navigation information
    • video monitoring
  • Corporate TV solutions
    • corporate TV channels
    • training channels
    • video conferences
    • educational channels
    • video monitoring
  • Schools, colleges, universities
    • transmission of lessons/lectures
    • school/college/university TV
    • news/educational channels
    • broadcasts to laptops, iPads, etc.
  • Sports facilities
    • TV on stadiums, in halls and supporting facilities,
    • HD video monitoring
    • transmission of sports events in high definition
DVB-T modulator
RF channel width
6 MHz, 7 MHz, 8 MHz
FFT mode8K
Guard interval1/32
MER>36 dB
RF range100-860 MHz
RF output level90...105 dBμV
Impedance75 Ω


Video4 x HDMI(HDCP): type A
Audio4 x HDMI: type A
RJ-4510/100M IP


Resolution1080p @30p/25p
Video compression
H.264/ AVC
Audio compression
MPEG-1 Audio layer II
(ISO/IEC 11172-3)
Bit rateInput: Max. 20 Mbps
Output: 5 Mbps (each HDMI channel)
PID settingsPMT/ Video/ Audio/ PCR
LCN Max 4 digits (max 1023)
GeneralRJ-45 port For configuration purposes
IP address
Power100 ~ 240 VAC (50/60 Hz)
Power consumption
15 W
Oper. temper.0...45 °C
MountingRACK 19"
480x180x44 mm


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