H.264 Rf Modulator Coverter

DMB-9581E Encoder/Modulator​ is a unified 1U rack‑mount unit that incorporates MPEG‑4/AVC H.264 encoding, multiplexing, and modulation in a single chassis. The device processes 8/12/16/20/24 HDMI inputs, IP streams, and 2 ASI inputs, converting them to RF outputs conforming to DVB‑C, DVB‑T, ISDB‑T, or ATSC standards across the 50–960 MHz band. It also includes 2 ASI interfaces and 1 IP port for delivering Transport Stream outputs.

Encoder&Modulator&Multiplexer ALL IN ONE---not only hdmi input, also support 128*MPTS/SPTS UDP/IP+2*ASI input,RF out can from HDMI,IP,ASI any source, IP output 127*SPTS over IP(UDP/RTP),1/8*MPTS, 2*ASI(independent) out, RF out with 4/8/16*RF DVB-T/ATSC-T/ISDB-T/Tb/DTMB or 16/32*RF DVB-C for option.( when ISDB-T RF output only 1*ASI input, ISDB-T output only 2K mode,don't support 4K and 8K)

Compatible with a variety of signal sources---Mixed HDMI+Tuner(DVB-SS2/C/TT2/ISDB-T/ATSC) input,for example 16 HDMI+8*Tuners(frequency)

Flexible use of frequency points--bandwidth range 768 Mhz,frequency points can be used flexible within bandwidth range(when 16*RF out)

Multi-Carriers Version option---4/8/16 DVB-T/C/ATSC/ISDB-T out or 32 QAM DVB-C out option accordingly the programs channels quantity.

Various of DTV/CATV Broadcasting Systems

Distribute IP source,HDMI programs source to All TVs over existing TV coax

Upgrade all your analog Head-ends to digital TV Solution

Enterprise, hotel, campus, hospital, restaurant, public place etc

Works with Digital TV transmitter in wireless TV broadcasting

Low cost Digital TV distribution

FAQ

Minimum Order Quantity (MOQ)​

As we manufacture a diverse product portfolio, the MOQ differs per product. It is influenced by material availability, production value, manufacturing schedule, ongoing order status, and stock levels. Certain products are available with an MOQ of one unit, while others may have minimum requirements above 1,000 units. For precise and updated MOQ details, please consult with our sales team.

Factory Details​

Our manufacturing facility is registered as Hangzhou Dtvane Tech Co., Ltd., situated on Binkang Road in Binjiang District, Hangzhou, China.

What is a Headend?​

A headend is the central receiving and processing unit in a television distribution system. It collects TV signals from external sources (such as satellite, terrestrial, or cable feeds) and converts them into a standardized format suitable for distribution to televisions in individual rooms. A conventional headend typically includes antennas (satellite/terrestrial) and signal‑processing equipment that demodulates, decodes, and re‑modulates incoming signals for delivery.

Broadcast Headend vs. IPTV Headend​

A broadcast headend​ distributes TV signals via a coaxial cable network​ within a building.

An IPTV headend​ delivers TV channels as multicast IP streams​ over a local area network (LAN).

If you already have a coaxial infrastructure and prefer not to upgrade to an IP‑based system, a broadcast headend is the appropriate choice. If you are deploying or expanding an IP network, an IPTV headend is recommended. Some facilities operate both systems to distribute different channel types, though a cost‑effective approach is to select one based on your existing infrastructure and requirements.

Sources of TV Channels​

TV channels are typically sourced from satellite dishes, terrestrial antennas, or cable TV operator feeds. It is also possible to integrate channels from internet streams, IP‑based cameras, computers, or other network‑connected equipment into the headend system.

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