SpaceBridge SBB0125C 125W C-Band Outdoor GaN BUC
• RF Frequency Range:
5.85–6.425 GHz, 5.85–6.725 GHz or 6.725–7.025 GHz
• IF Frequency Range:
950–1525 MHz, 950–1825 MHz or 975–1275 MHz
• LO Frequency: 4.9 GHz or 5.750 GHz
• Rated Output Power: 125 W (51 dBm)
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SpaceBridge SBB0125C 125W C-Band Outdoor GaN BUC
The SpaceBridge SBB0125C is a compact 125 W C-band outdoor block upconverter (BUC) powered by Gen III GaN technology, designed for broadcast contribution, cellular backhaul, VSAT and SCPC terminals. Available in Standard, Extended and INSAT C-band configurations, it provides high-linearity amplification with built-in 1:1 redundancy, Ethernet monitoring and an integrated AC power supply. Its IP67 enclosure supports reliable operation in demanding fixed and mobile outdoor applications.
Frequency Options
| Model / Configuration | RF Frequency Range | IF Frequency Range | LO Frequency |
| SBB0125CS — Standard C-band | 5.850–6.425 GHz | 950–1525 MHz | 4.9 GHz |
| SBB0125CX — Extended C-band | 5.850–6.725 GHz | 950–1825 MHz | 4.9 GHz |
| SBB0125CI — INSAT C-band | 6.725–7.025 GHz | 975–1275 MHz | 5.750 GHz |
Technical Specifications
Saturated Output Power: 125 W / 51 dBm min.
Single-Carrier Linear Output Power: 79 W / 49 dBm min.
Two-Carrier Linear Output Power: 62.5 W / 48 dBm min.
Small-Signal Gain: 70 dB typ.
Gain Control: 20 dB min. dynamic range, adjustable in 0.1 dB steps
IF Input Connector: N-type female, 50 Ω
RF Output Connector: CPR137 grooved waveguide flange
Reference Frequency: External 10 MHz; optional internal high-stability reference
AC Input Voltage: 90–265 VAC
AC Frequency Range: 47–63 Hz
Optional DC Input Voltage: 36–72 VDC, replacing the AC power option
Power Consumption at Saturated Output: 510 W
Power Consumption at Two-Carrier Linear Output: 445 W
Monitoring and Control: Ethernet web interface, SNMP, RS-232 and RS-485
Redundancy: Built-in 1:1
Cooling: Forced air
Operating Temperature: −40 °C to +55 °C
Environmental Protection: IP67
Dimensions: 229 × 127 × 165 mm
Weight: 4.5 kg / 10 lb
Key Features
• Gen III GaN technology for high efficiency and linearity
• Standard, Extended and INSAT C-band options
• Built-in 1:1 redundancy without an external redundancy controller
• High-precision true RMS output power meter
• Integrated AC power supply or optional DC power input
• Ethernet web interface and SNMP support
• Output overdrive, output VSWR and thermal shutdown protection
• Optional internal high-stability 10 MHz reference
• Optional 1U remote control panel for 1:1 redundancy
SpaceBridge SBB0125C
- Transmit Band
- 5.850 - 6.425 GHz
- Transmit Band
- 6.725 - 7.025 GHz
- Transmit Band
- 5.850 - 6.725 GHz
- Power Output
- 125W
Specific References
• RF Frequency Range:
5.85–6.425 GHz, 5.85–6.725 GHz or 6.725–7.025 GHz
• IF Frequency Range:
950–1525 MHz, 950–1825 MHz or 975–1275 MHz
• LO Frequency: 4.9 GHz or 5.750 GHz
• Rated Output Power: 125 W (51 dBm)