Description

10.70–11.50 GHz Block Up-Converter (BUC)

(Ku-Band Satellite Uplink Device, Local Oscillator: 9.75 GHz)

This frequency band falls within the lower segment of the Ku-band uplink spectrum. It is characterized by stable spectrum availability, low interference risk, and compact equipment design. Its core applications are focused on satellite communication systems that require high communication reliability and portability, as detailed below:

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一、Core Application Scope and Scenarios / 核心应用范围与场景

1. Portable / Emergency Satellite Communication Systems

Applicable Scenarios / 适用场景:​

• Emergency command communications at disaster sites such as earthquakes, floods, and landslides
• Temporary communication support in areas without terrestrial network coverage, such as remote mountainous regions, deserts, and oceans

Core Value / 核心价值:​

This 10.70–11.50 GHz BUC​ is typically compact in size, lightweight (e.g., as light as 1.2 kg as mentioned previously), and low in power consumption (max. 25 W). It can be integrated with a portable satellite antenna​ to form a “flyaway” or portable station, enabling rapid deployment and the establishment of an uplink​ for real-time transmission of voice, data, and video.

Typical Users / 典型用户:​

Emergency management departments, geological exploration teams, and field scientific research crews.

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2. Maritime / Nearshore Small Vessel Communications

Applicable Scenarios / 适用场景:​

• Routine communication and navigation for small fishing boats, yachts, and nearshore work vessels
• Command and dispatch operations for coastal patrol boats

Core Value / 核心价值:​

This frequency band is less affected by sea clutter interference, and the equipment offers strong resistance to salt spray and vibration (e.g., IP67-rated protection), ensuring stable operation in rough sea and high-humidity environments. It provides services such as broadband access and position reporting​ for crew members.

Advantage / 优势对比:​

Compared to BUCs operating at higher Ku-band frequencies, this frequency range requires smaller antenna apertures, making it more suitable for installation on small vessels.

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3. Small Fixed Satellite Ground Stations

Applicable Scenarios / 适用场景:​

• Broadband access for rural schools, clinics, and government offices in remote areas
• Private network data transmission for enterprise branch offices

Core Value / 核心价值:​

This frequency band benefits from relatively abundant spectrum resources and low interference levels, helping ensure long-term, stable uplink communication. It also offers lower equipment and operational costs compared to C-band systems, making it ideal for small-scale user deployment.

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4. UAV / Low-Altitude Aerial Vehicle Data Links

Applicable Scenarios / 适用场景:​

• Real-time transmission of high-definition imagery from mapping drones and inspection drones
• Remote control of small unmanned aerial platforms

Core Value / 核心价值:​

The bandwidth of this frequency range​ is sufficient to support high-definition video transmission, and the BUC provides a high linear gain (typically 55 dB), ensuring stable signal amplification even from weak intermediate frequency (IF) sources. This makes it well-suited for lightweight and low-power UAV applications.

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5. Satellite News Gathering (SNG) Lightweight Equipment

Applicable Scenarios / 适用场景:​

• Outdoor live broadcasting by small news reporting teams
• Mobile reporting at sports events, concerts, and other live events

Core Value / 核心价值:​

This BUC can be paired with a backpack-mounted satellite antenna​ for “plug-and-play” deployment, meeting the time-sensitive demands of news reporting. It also features strong in-band spurious suppression (−60 dBc), minimizing potential interference with the satellite transponder.

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二、Key Advantages of This Frequency Band / 该频段的核心优势

1. Low Interference Risk / 干扰风险低

The 10.70–11.50 GHz band is located far from terrestrial 5G communication bands, reducing the likelihood of interference. As a result, there is no need for additional anti-interference filters, which helps lower system complexity and cost.

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2. Compact Equipment Design / 设备小型化

Compared to the C-band, the Ku-band has a shorter wavelength, allowing for smaller BUC and antenna sizes​ with reduced weight. This makes the system highly suitable for mobile or portable applications.

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3. Moderate Link Loss / 链路损耗适中

Under the same antenna aperture conditions, the uplink path loss in the 10.70–11.50 GHz band is lower than that in higher Ku-band segments (e.g., 14–14.5 GHz), resulting in better communication range and link stability.

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附加说明 / Additional Notes

• Frequency Range (RF):​ 10.70 – 11.50 GHz
• Local Oscillator Frequency (LO):​ 9.75 GHz
• Intermediate Frequency (IF):​ Typically 950 – 1750 MHz (varies by model)
• Output Interface:​ WR75G waveguide (or other Ku-band dedicated interface)
• Typical Gain:​ 55 dB (linear gain, typical value)
• Output Power:​ ≥ +33 dBm (approximately 2 W, guaranteed across full temperature range)
• Protection Rating:​ IP67 (for some models)
• Operating Temperature:​ −40°C to +55°C

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👥 Welcome to Contact Us

Shenzhen Huashi Digital Technology Co., Ltd.​

(深圳市华视数码科技有限公司)

For more information or technical consultation, please feel free to contact us.