Gospell FM Broadcast Transmitters System 50W 5000W Digital TV
Transmitter
- Gospell provides a comprehensive FM broadcast system solution,
encompassing all aspects from initial survey and engineering design
to construction and installation.
- The transmitter employs advanced technology to enhance signal
coverage and transmission quality.
- The multiplexer design enables effective combination of multiple
signals, ensuring balanced signal distribution between channels.
- Most product components feature integrated design, with lightweight
and compact forms that effectively reduce debugging, installation,
and transportation costs, thereby enhancing transmitter efficiency.
- The feeder lines are specially designed to minimize signal loss
during transmission, optimizing signal flow from the transmitter to
the antenna. System antennas are custom-designed according to
customer requirements, meticulously crafted to expand broadcast
coverage and enhance reception efficiency.
- Moreover, Gospell takes into account practical operational
environments and maintenance requirements during the system design
phase, ensuring compliance with engineering standards throughout
the entire installation process.
- Gospell offers a one-stop service from design and equipment supply
to on-site installation and debugging, along with timely and
efficient after-sales support, to ensure the system's high
performance and long-term stable operation.
Connection Diagram
The Gospell FM transmitter is primarily composed of modulation
modules, power amplifier modules, control modules, sampling
modules, switch power supplies, and other units.
It is mainly utilized in wireless communication fields such as FM
broadcasting, emergency broadcasting, campus broadcasting, and
electronic interference.
Full Bridge Multiplexer
50w/300w/500w/1000w/2000w/4000w
- Purple copper, silver-plated brass, and high-quality aluminum alloy
construction
- Integrated filtering technology
- Low loss and VSWR, with high isolation
- Compact structural design for efficient space usage
- Full bridge structure featuring a reserved broadband port for easy
expansion across multiple frequency points
- Excellent temperature compensation design for reliable performance
under varying conditions
Air insulated RF cable
87MHZ—108MHZ
- The Gospell air-insulated RF cable series has undergone specialized
structural design and production processes to enhance the
full-frequency VSWR index of the electric winding.
- This ensures compatibility with the multi-frequency usage
requirements of broadband digital TV transmission cables, resulting
in excellent system matching, transmission performance, and VSWR
index for the feeder.
- Specifically, it features low cable loss, excellent VSWR index
across all channels, high power capability, and long service life.
Digital TV System
- The signal source of the DVB-T2 system is generally divided into
three parts: satellite encrypted programs, free satellite programs,
and local programs. Encrypted programs are typically received by
satellite set-top boxes (STBs) or CAM card receivers, and the
output signal is then sent to HD encoders for program encoding and
compression. Free programs are typically received by FTA
(Free-to-Air) receivers, and the output IP signal is sent to a
transcoder for program compression. The AV signal output from local
programs is sent to SD encoders for program encoding and
compression.
- The IP signals outputted by the three program sources are then sent
to a data switch, and our IP multiplexer is used to multiplex and
scramble the programs. The IP signal outputted by the multiplexer
is then sent to the DVB-T2 modulator, which modulates the program
and combines signals of different frequencies together through a
combiner. All combined signals are then transmitted to the digital
transmitter and sent to the UHF antenna via a waveguide for
transmission.
- Subscribers use Yagi antennas and STBs to receive signals and watch
programs on their TVs.
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