The Invacom SNF-031 is a high-quality Universal Single LNB with a standard C120 flange connection. It is designed for satellite systems where the LNB and feedhorn are installed as separate components, providing greater flexibility than a conventional LNB with an integrated feedhorn.
The model is particularly suitable for use with a compatible C120 feedhorn on prime-focus, offset and specialist satellite dishes. Selecting a feedhorn matched to the dish geometry allows the installation to be optimised for the reflector’s F/D ratio and reception requirements.
The SNF-031 has one output for connecting a single satellite receiver or tuner. It covers the complete Ku band from 10.70 to 12.75 GHz and provides a typical noise figure of 0.3 dB, 30 dB polarisation isolation and 50–60 dB gain.
✅ Product Benefits
- Universal Single LNB covering the complete Ku band
- One output for one satellite receiver or tuner
- Standard C120 flange connection
- Separate feedhorn can be selected for the dish type
- Typical noise figure of 0.3 dB
- Polarisation isolation of 30 dB
- Gain of 50–60 dB
- Automatic low- and high-band switching
- Voltage-controlled vertical and horizontal polarisation
- Suitable for advanced and specialist satellite installations
- Ivory-coloured weather-resistant housing
- Quality construction from Invacom
📡 C120 Flange Connection
The Invacom SNF-031 does not have an integrated feedhorn. The LNB is mounted directly onto a compatible feedhorn with a C120 flange.
This construction is commonly used when:
- The feedhorn must be matched to the dish’s F/D ratio
- A dedicated feedhorn is required for a prime-focus dish
- An adjustable or specialist feedhorn is used
- The LNB and feedhorn need to be replaced separately
The product cannot be fitted directly into a standard 40 mm LNB holder without a suitable C120 feedhorn and mounting arrangement.
👤 Connection for One User
The LNB has one output and is designed for:
- One satellite receiver with a single tuner
- One television with an integrated satellite tuner
- One compatible SAT>IP receiver with a satellite input
- A satellite meter during alignment
A Twin-tuner receiver normally requires two separate signal feeds to display and record independent channels simultaneously.
🔧 Installation
Mount the LNB’s C120 flange onto a compatible feedhorn. Ensure that the flange surfaces are clean and that any required seal is correctly fitted. Tighten the mounting screws evenly without damaging the flange or feedhorn.
Connect a 75-ohm coaxial cable fitted with an F-connector to the LNB output. The cable connection and flange assembly must be carefully protected against moisture during outdoor installation.
The dish, feedhorn and polarisation should be accurately adjusted using a suitable satellite meter for maximum signal quality.
⚙️ Technical Specifications
Product type: Universal Single flange LNB
Manufacturer: Invacom
Model: SNF-031
Number of outputs: 1
Number of independent tuners: 1
Flange connection: C120
Integrated feedhorn: No
Input frequency: 10.70–12.75 GHz
Low-band local oscillator: 9.75 GHz
High-band local oscillator: 10.60 GHz
Noise figure: 0.3 dB typical
Polarisation isolation: 30 dB
Gain: 50–60 dB
Band switching: 0/22 kHz
Vertical control voltage: 11.5–14.0 V
Horizontal control voltage: 15.5–19.0 V
Power consumption: Approximately 105 mA typical
Output connector: F-type female
Colour: Ivory
Product number: 10407
EAN: 4043745615524
📦 Package Contents
- 1 × Invacom SNF-031 Universal Single C120 flange LNB
Please note: Feedhorn, satellite dish, mounting bracket, coaxial cable, F-connector and other installation materials are not included.
