The C-band Upconverter 5.85-6.425 GHz is built for satellite uplink chains operating in the C-band fixed-satellite service (FSS) spectrum. Its output covers the standard 5.925-6.425 GHz uplink band together with the lower 5.85-5.925 GHz segment. The unit translates 950-1525 MHz IF signals using a 4.9 GHz local oscillator locked to an external 10 MHz reference.
C-band links are valued for their resilience to rain fade, which makes this converter a practical choice for broadcast distribution, teleports and earth stations in tropical and high-rainfall regions. The IP54 indoor unit measures 115x120x38 mm, weighs up to 0.95 kg, runs from 10-24 VDC at under 9 W and offers LED indication of 10 MHz lock and alarm status.
The C-band Upconverter 5.85-6.425 GHz is a compact upconverter/BUC for C-band satellite uplinks. It takes 950-1525 MHz IF signals from a satellite modulator and shifts them to the 5.85-6.425 GHz transmit range with a 4.9 GHz local oscillator locked to an external 10 MHz reference.
Because C-band signals are far less affected by rain attenuation than higher-frequency bands, C-band uplinks remain the backbone of many broadcast distribution and contribution networks. The converter supports this role with a minimum P1dB of 10 dBm, 5-30 dB gain (fixed or adjustable), ±1 dB flatness across the band and ±0.4 dB flatness over 40 MHz.
Spectral purity is specified at IMD3 -30 dBc max, spurious -60 dBc max @P1dB and LO leakage -75 dBm without signal. N-type input, N-type female output and a 10-24 VDC supply allow straightforward integration into indoor racks and shelters.
✅ Full C-band FSS uplink coverage
The 5.85-6.425 GHz output range covers the standard 5.925-6.425 GHz C-band uplink as well as the lower 5.85-5.925 GHz segment, so one converter type can serve different transponder plans.
✅ Rain-fade resilient C-band links
C-band uplinks are widely used in tropical and high-rainfall regions where link availability is critical. The converter provides stable, reference-locked frequency translation for these links.
✅ Reference-locked 4.9 GHz LO
The local oscillator is locked to an external 10 MHz reference, so LO accuracy follows the station reference. Phase noise is specified from -35 dBc/Hz @10 Hz to -105 dBc/Hz @1 MHz.
🛠️ For C-band broadcast uplinks, teleport transmit chains or VSAT hub stations, the C-band Upconverter 5.85-6.425 GHz provides 950-1525 MHz to 5.85-6.425 GHz conversion in a compact indoor package.
🛒 To order the C-band Upconverter 5.85-6.425 GHz or to discuss gain configuration and integration options, request a quote from our team.
📌 Key features
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5.85-6.425 GHz C-band output
Covers the complete 5.85-6.425 GHz C-band uplink range from a single 950-1525 MHz IF input.
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4.9 GHz LO locked to 10 MHz
The 4900 MHz local oscillator is synchronized with an external 10 MHz reference; LED indication confirms the locked state.
Provides a minimum output P1dB of 10 dBm, sufficient to drive the following C-band power amplifier stage.
Gain is available in fixed or adjustable configuration within 5-30 dB; adjustment is offered as an option.
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Low spurious and LO leakage
Spurious level of -60 dBc max @P1dB and LO leakage of -75 dBm without signal help keep the uplink spectrum clean.
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Compact IP54 indoor housing
115x120x38 mm enclosure, maximum weight 0.95 kg, 10-24 VDC supply and power consumption below 9 W.
⚙️ Main functions
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IF-to-C-band upconversion
Translates the 950-1525 MHz modulator output to the 5.85-6.425 GHz uplink band.
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Station reference synchronization
Locks the 4.9 GHz LO to the external 10 MHz reference used across the earth station.
Fixed or adjustable gain of 5-30 dB sets the drive level for the next stage of the uplink chain.
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Alarm-controlled RF output
RF isolation at ALARM is specified at -80 dB min.
LEDs indicate 10 MHz lock status and alarm conditions for quick on-site diagnostics.
🧩 Applications
Uplink of TV and radio distribution feeds over C-band satellites.
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Teleports in tropical regions
Earth stations where C-band is preferred for its resilience to rain fade.
Hub transmit chains of C-band VSAT networks.
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Government communications
C-band satellite links for government communication systems.
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Satellite operator tracking
Satellite operator tracking applications that require stable IF-to-C-band conversion.
💡 Why you should buy from us❓
- 1.5 years warranty
- 7 years after-sales support
- Remote support team of engineers
- Discount program for regular customers 🎁
💬 Contact Us
For additional details or assistance regarding the C-band Upconverter 5.85-6.425 GHz, feel free to contact our team. We provide professional consultation and aftersales support to help with integration, installation and setup of the upconverter within your satellite communication system.
