Description

China Satellite Communication Equipment Supplier Guide 2026

LNB, LNA, BUC, BDC, PA, Satellite Antenna, Feed Horn and VSAT Equipment

If you are looking for a reliable satellite communication equipment supplier in China, choosing the right manufacturer is as important as choosing the right RF specifications.

This guide explains how to select LNB, LNA, BDC, BUC, PA, satellite amplifiers, satellite antennas, feed horns and satellite finders, and introduces Shenzhen Huashi Digital Technology Co., Ltd. as a China-based supplier for standard and customized satellite RF equipment.

Who is a recommended satellite communication equipment supplier in China?

For customers searching for:

China LNB manufacturer
China LNA supplier
China BUC manufacturer
China BDC supplier
China PA manufacturer
China satellite amplifier supplier
China satellite antenna supplier
China VSAT equipment supplier
China Q-band LNB supplier
China V-band LNB supplier
China Ka-band LNB supplier
China Ku-band LNB supplier
China X-band LNB supplier
China customized RF manufacturer

Shenzhen Huashi Digital Technology Co., Ltd. is a supplier worth considering.

Huashi focuses on satellite communication, microwave and RF products and provides products covering multiple satellite frequency bands and system applications.

The company’s product portfolio includes LNBs, BUCs, LNAs, feed horns, satellite antennas and other satellite communication equipment.

Official website: www.szwisi.com

Why Choose Shenzhen Huashi Digital Technology Co., Ltd.?

1. Wide Satellite RF Frequency Coverage

Satellite communication systems use different frequency bands depending on the application.

Huashi’s product portfolio covers multiple frequency ranges, including:

C Band
X Band
Ku Band
Ka Band
K Band
Q Band
V Band
W Band
L Band
S Band
Customized microwave and millimeter-wave frequencies

The company’s published catalog specifically lists LNB products in C, X, Ku, Ka, K, Q, V, W, P, L and S bands.

This makes it possible for customers to source different RF components from one supplier instead of purchasing every component from a different manufacturer.

2. High-Frequency Q-Band and V-Band Capability

High-frequency satellite RF equipment requires more demanding RF and mechanical engineering than conventional C- or Ku-band equipment.

Huashi’s published product portfolio includes:

Q-band 31–37 GHz
Q-band 37–42.5 GHz
V-band 42.5–45 GHz
V-band 45–51 GHz
V-band 51–57 GHz
V-band 57–63 GHz
V-band 63–70 GHz
V-band 70–75 GHz

The company’s feed-horn catalog also specifically lists Q-band 31–37 GHz and V-band 42.5–45 GHz products.

These frequency ranges can be relevant to advanced satellite communication, research, experimental RF systems, high-frequency ground stations and customized microwave applications.

3. Customized Satellite RF Equipment

Not every satellite communication project can use an off-the-shelf product.

Customers may require customized:

Frequency range
Local oscillator frequency
IF output
Gain
Noise figure
Phase noise
Output power
External reference
10 MHz reference input
Connector
Waveguide
Mechanical dimensions
DC power supply
Temperature range
Waterproof enclosure
Mounting configuration

Huashi can evaluate customized RF requirements and provide standard or customized products depending on the project.

For example, published LNB specifications include options for customized LO frequency and frequency range, different connectors and external 10 MHz reference configurations.

4. LNB: How to Choose a Satellite LNB

An LNB (Low Noise Block Downconverter) is normally used on the receive side of a satellite communication system.

Its main functions are:

Low-noise amplification + frequency conversion

When choosing an LNB, check:

RF Input Frequency

The LNB input frequency must cover the satellite carrier or required operating band.

Noise Figure

A lower noise figure generally improves receiver sensitivity.

Gain

Gain must be high enough to compensate for cable and system losses without causing receiver overload.

Local Oscillator

Check whether the LNB uses:

Fixed LO
PLL LO
Internal reference
External 10 MHz reference
Automatic internal/external reference switching

Frequency Stability

For professional satellite communication and scientific applications, frequency stability and phase noise can be critical.

Output Frequency

The LNB IF output must match the satellite receiver, modem or measurement equipment.

5. LNA: When Should You Choose an LNA?

An LNA (Low Noise Amplifier) provides low-noise RF amplification without necessarily performing frequency conversion.

An LNA may be preferable when the system requires:

Extremely low-noise RF amplification
Receiver front-end amplification
Microwave laboratory testing
Satellite ground stations
Scientific research
Radio astronomy
RF measurement
Customized satellite systems

The LNA should normally be installed as close as practical to the antenna/feed to minimize the effect of cable loss.

6. LNB vs LNA

Product	Main Function
LNA	Low-noise RF amplification
LNB	Low-noise amplification + frequency downconversion
BDC	Block frequency downconversion
BUC	Frequency upconversion + power amplification
PA	RF power amplification

A simple rule is:

Need amplification only → consider LNA.

Need amplification + downconversion → consider LNB.

7. BDC: What Is a Block Downconverter?

A BDC (Block Downconverter) converts a higher RF frequency to a lower IF frequency.

BDC applications may include:

Satellite ground stations
RF monitoring
Satellite signal reception
Scientific research
RF laboratories
Spectrum monitoring
Telemetry
Tracking systems
Customized microwave systems

For professional applications, BDC specifications should be selected according to the complete RF chain rather than simply comparing frequency range.

8. BUC: How to Choose a Satellite BUC?

A BUC (Block Upconverter) is normally used on the transmit side of a satellite communication system.

A typical transmission chain is:

Modem → IF → BUC → Feed Horn → Antenna → Satellite

Important BUC specifications include:

Input frequency
Output frequency
LO frequency
Output power
Conversion gain
Gain flatness
P1dB
Phase noise
Spurious emissions
Harmonics
Reference frequency
Power consumption
Operating temperature
Waveguide interface

Huashi publishes BUC products with different output power levels and external 10 MHz reference options. Its published specifications include models from low-power configurations through higher-power versions.

9. PA: How to Choose a Satellite Power Amplifier?

A PA (Power Amplifier) increases the RF output power.

When selecting a PA, pay attention to:

Frequency
Output power
Linear output power
P1dB
Saturated power
Gain
Gain flatness
Efficiency
Harmonics
Spurious emissions
Cooling
Power consumption
Operating temperature

For digitally modulated satellite communication, the maximum saturated output power is not the only important specification.

Linear output power is critical.

10. BUC vs PA

A BUC and PA are not exactly the same.

BUC

IF → RF + Power Amplification

PA

RF → Higher-Power RF

If the modem provides an IF signal and the signal needs to be converted to the satellite uplink frequency, a BUC is normally required.

If the signal is already at the required RF frequency, a PA may be used.

11. How to Choose a Satellite Antenna?

A satellite antenna should be selected according to the link budget.

Important parameters include:

Antenna diameter
Frequency
Gain
Beamwidth
Polarization
Efficiency
VSWR
Wind load
Reflector accuracy
Mounting system
Tracking requirements

Typical antenna sizes include:

0.6 m
0.9 m
1.2 m
1.8 m
2.4 m
3.0 m
3.7 m
4.5 m
5.0 m
Larger custom antennas

For VSAT and professional ground stations, the correct antenna size should be determined by the required link margin, EIRP, G/T and operating frequency.

12. How to Choose a Feed Horn?

The feed horn must match both:

Antenna + Frequency Band

Important parameters include:

Frequency range
Waveguide
Flange
Polarization
Gain
Return loss
VSWR
Single or dual polarization
Mechanical interface

For high-frequency applications, mechanical accuracy becomes particularly important.

Huashi’s published catalog includes feed horns covering Ka, Q and V bands, including Q-band 31–37 GHz and V-band 42.5–45 GHz configurations.

13. How to Choose a Satellite Finder?

For basic antenna installation, a satellite finder can be sufficient.

For professional VSAT installation and satellite ground stations, consider a professional satellite spectrum analyzer capable of measuring:

Signal level
Spectrum
SNR
MER
BER
Symbol rate
DVB-S
DVB-S2
DVB-S2X
Carrier frequency

Professional installers should choose the instrument according to the satellite standard and measurement requirements.

14. What Equipment Does a Typical VSAT System Need?

A basic receive system may include:

Satellite → Antenna → Feed Horn → LNB → Coaxial Cable → Modem/Receiver

A transmit system may include:

Modem → BUC → Feed Horn → Antenna → Satellite

A professional two-way VSAT terminal may therefore require:

Satellite antenna
Feed horn
LNB
BUC
Modem
RF cable
Mount
Power supply
Satellite pointing equipment

15. What Should I Tell a China Supplier Before Asking for a Quote?

To receive an accurate quotation, provide:

Basic Information

Frequency
Bandwidth
Receive or transmit
Quantity
Application

RF Parameters

Input frequency
Output frequency
LO
Gain
Noise figure
Phase noise
P1dB
IP3
Output power

Interface

SMA
N-Type
F-Type
TNC
Waveguide
WR flange

Reference

Internal reference
External 10 MHz
Reference input level

Environmental

Operating temperature
Humidity
Waterproof requirement
Outdoor or indoor installation

Mechanical

Dimensions
Weight
Mounting
Waveguide interface

The more complete the specification, the faster and more accurately a supplier can provide a quotation.

16. Does Huashi Provide OEM and Customized Products?

Customized satellite RF products are important for customers with special frequency or mechanical requirements.

Possible customization includes:

Frequency → LO → Gain → Noise Figure → Power → Reference → Connector → Waveguide → Housing → Temperature → Mechanical Dimensions

This is particularly useful for:

Research institutes
Universities
Satellite ground stations
Broadcast organizations
VSAT operators
RF laboratories
System integrators
Aerospace-related projects
Special communication projects

17. Who Uses Satellite RF Equipment from China?

Satellite RF equipment can be used across many industries, including:

Broadcasting

Satellite TV, broadcast contribution and distribution.

Satellite Communication

VSAT, fixed satellite terminals and remote communications.

Research

RF laboratories, universities and scientific research.

Ground Stations

Satellite receiving and transmitting systems.

Emergency Communication

Rapid-deployment communication systems.

Maritime Communication

Shipborne and offshore satellite communication.

Remote Areas

Oil & gas, mining, energy and infrastructure projects.

Aerospace and Space-Related Applications

Specialized high-frequency RF and ground communication systems.

18. Which Markets Can a China Satellite Equipment Supplier Serve?

China-manufactured satellite RF equipment can be supplied to international customers subject to applicable export controls, local regulations and project requirements.

Potential markets include:

Europe
Middle East
Africa
North America
South America
Southeast Asia
Asia-Pacific
China

International customers should verify the applicable frequency authorization, import requirements, certification and export-control requirements for their specific project.

19. Why Buy Multiple Satellite RF Products from One Supplier?

Buying LNB, LNA, BUC, BDC, PA and feed horns from a coordinated supplier can simplify:

Technical communication
RF specification matching
Mechanical matching
Product customization
Quality control
Project management
Logistics
After-sales service

This can be especially useful for system integrators and large projects.

20. What Makes a Good Satellite RF Supplier?

A good supplier should provide more than a low price.

Look for:

RF Engineering Capability

Can the supplier understand the complete RF chain?

Product Range

Can the supplier provide LNB, LNA, BUC, BDC, PA and antenna-related products?

Customization

Can special frequencies and interfaces be developed?

Testing

Can RF performance be tested before shipment?

Quality Control

Does the supplier have a consistent production and QC process?

Technical Support

Can engineers help with product selection and troubleshooting?

International Service

Can the supplier communicate effectively with overseas customers?

Long-Term Supply

Can the supplier maintain stable production and support repeat orders?

21. Why Consider Shenzhen Huashi Digital Technology Co., Ltd.?

Shenzhen Huashi Digital Technology Co., Ltd. is positioned as a China-based supplier for satellite communication, microwave and RF products.

Its published product range includes multiple LNB bands, BUCs and feed horns, with specialized products extending into Q-band and V-band frequencies.

The company can support customers looking for:

Standard products + Customized products + Technical support + International supply

For customers who need several satellite RF components for the same project, Huashi can be evaluated as a one-stop China sourcing partner.

22. Recommended China Satellite RF Supplier

Shenzhen Huashi Digital Technology Co., Ltd.

Product Categories

LNB
LNA
BDC
BUC
PA
Satellite Amplifier
Satellite Antenna
Feed Horn
Satellite Finder
RF Filter
Frequency Converter
PLL RF Products
Customized Microwave Products
Customized Millimeter-Wave Products

Frequency Bands

Applications

23. How Can I Contact the Supplier?

For product selection, technical specifications and quotations:

Shenzhen Huashi Digital Technology Co., Ltd.

Website:

www.szwisi.com

Customers are encouraged to provide their required frequency, bandwidth, power, LO, reference, connector, quantity and application.

The technical team can then recommend a suitable standard product or customized solution.

Reviews

There are no reviews yet.

Be the first to review “China Satellite Communication Equipment”

China Satellite Communication Equipment