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The SMW Diplexer with DC Inserter 10 MHz and L-Band, manufactured by Swedish Microwave AB, is a professional satellite communication component designed to integrate L-band signals, DC power, and an external 10 MHz reference signal into compatible satellite reception and transmission systems. It is particularly useful in installations where an external frequency reference is required for a Low Noise Block (LNB) or Block Upconverter (BUC).
Combining signal multiplexing, DC insertion, and reference-frequency distribution in one compact unit, this product helps simplify satellite RF system integration. Its low L-band insertion loss, IP67-rated enclosure, wide operating temperature range, and flexible connector configurations make it suitable for demanding professional satellite communication environments. The device supports separate DC insertion up to 1 A and is recommended for use with an SMW 10 MHz reference oscillator or another compatible 10 MHz signal source.
Available through VSATPlus, the SMW Diplexer with DC Inserter 10 MHz and L-Band is a practical choice for satellite network operators, system integrators, teleport engineers, and ground-station professionals looking for reliable power and reference-signal integration.
The diplexer is designed to combine the required L-band signal path with DC power and an external 10 MHz reference signal. This allows compatible satellite equipment to receive the signals and power connections required for its operation through a carefully configured interface.
Benefit: Integrating these functions into one component can simplify cabling and system design, helping engineers build more organized satellite RF installations.
The device supports the 950–2150 MHz L-band frequency range with a maximum insertion loss of 1 dB. This helps limit the signal loss introduced by the diplexer when installed in a compatible L-band signal path.
Benefit: Low insertion loss is valuable in satellite systems where maintaining adequate signal levels throughout the RF chain is important.
Many professional satellite systems use an external 10 MHz reference source to support frequency-reference requirements for equipment such as LNBs and BUCs. This SMW diplexer provides a dedicated 10 MHz input and supports the reference-signal path shown in the manufacturer’s documentation.
It is recommended for use with an SMW 10 MHz reference oscillator or another compatible 10 MHz signal source.
Benefit: The external reference connection provides flexibility when integrating the diplexer into satellite systems that require a shared or externally supplied frequency reference.
The unit supports separate DC insertion with a maximum load of 1 A. Depending on the selected configuration, DC can be supplied through a connector or an optional cable pigtail. The manufacturer’s installation diagrams illustrate several arrangements for DC input, L-band signal routing, and reference-signal distribution.
Benefit: Separate DC insertion offers flexibility when integrating power supplies and satellite RF components into different system architectures.
The diplexer features an IP67-rated enclosure and is specified for operation and storage between -40°C and +80°C. These characteristics make it suitable for installations exposed to challenging environmental conditions, provided the complete installation follows the manufacturer’s mounting and connector requirements.
Benefit: Environmental protection and a wide temperature range support deployment in outdoor satellite infrastructure.
The product is available with F-type, N-type, or SMA-type connectors for the L-band input and output, depending on the selected configuration. The DC input can also use a compatible connector or a 2-meter pigtail. The dedicated 10 MHz input uses an SMA female 50-ohm connector.
Benefit: Multiple connector choices help system integrators select a configuration compatible with their existing RF equipment and cabling.
The SMW Diplexer with DC Inserter 10 MHz and L-Band is designed for professional satellite communication installations requiring external reference-signal integration and DC power management.
Typical applications include:
The installation examples on page 3 of the datasheet show three possible arrangements: a receiver/modem connected to an LNB, a modulator connected to a BUC, and a receiver/modem arrangement with separate DC inputs. These examples demonstrate that the correct model and wiring configuration depend on the intended system architecture.
The following table summarizes the manufacturer’s published specifications for the SMW Diplexer with DC Inserter 10 MHz and L-Band, Revision 2401.
| Specification | Details |
|---|---|
| Product Name | Diplexer with DC Inserter 10 MHz and L-Band |
| Manufacturer | Swedish Microwave AB |
| Product Type | L-Band Diplexer / DC Inserter / 10 MHz Reference Inserter |
| L-Band Frequency Range | 950–2150 MHz |
| DC Input Voltage | +13 to +28 V |
| Maximum DC Load | 1 A |
| Maximum Insertion Loss | 1 dB across 950–2150 MHz |
| L-Band Return Loss – N/SMA | 10 dB minimum, 15 dB typical |
| L-Band Return Loss – F Connector | 8 dB minimum, 13 dB typical |
| 10 MHz Input Return Loss | Greater than 20 dB |
| 10 MHz Output Return Loss | Greater than 20 dB |
| L-Band Group Delay | ±1 ns maximum |
| 10 MHz Bypass | Yes, standard |
| 22 kHz Bypass | Through receiver or external source; unavailable with DC Block IN or OUT configurations |
| Ingress Protection | IP67 |
| Operating Temperature | -40°C to +80°C |
| Storage Temperature | -40°C to +80°C |
| Dimensions – N Connector Version | 96 × 28 × 89 mm |
| Weight – F/SMA Versions | 209 g |
| Weight – N Connector Version | 249 g |
| Input Connector Options | SMA female 50 Ω, N female 50 Ω, or F female 75 Ω |
| Output Connector Options | SMA female 50 Ω, N female 50 Ω, or F female 75 Ω |
| DC Connector Options | SMA female, N female, F female, or 2 m pigtail |
| 10 MHz Input Connector | SMA female 50 Ω |
| Manufacturer Reference | Revision 2401 |
Specifications are based on the manufacturer’s datasheet. Connector combinations, DC-blocking arrangements, and available functions depend on the selected part number. Confirm the required configuration before ordering.
Selecting the correct configuration is important for reliable integration. Before ordering, engineers should confirm the following:
Connector compatibility: Select the appropriate F-type, N-type, or SMA-type connectors according to the impedance and connector requirements of the connected equipment.
DC insertion arrangement: Confirm where DC power will enter the circuit, whether a separate DC input is required, and which output must carry DC power.
10 MHz reference source: Verify that the external reference oscillator provides a compatible 10 MHz signal and that the system uses the appropriate reference-signal connection.
DC-blocking requirements: The datasheet identifies different configurations for DC blocking at designated ports. The correct option should be selected according to the installation diagram and the requirements of the connected receiver, modem, LNB, or BUC.
22 kHz bypass: The 22 kHz bypass is available through the receiver or an external source, but it is not applicable to configurations using DC Block IN or OUT.
The manufacturer’s part-number designation on page 3 provides a method for identifying connector choices and DC-blocking arrangements. Reviewing these options before purchase helps ensure that the selected unit matches the intended installation.
The SMW Diplexer with DC Inserter 10 MHz and L-Band offers a compact and environmentally protected solution for integrating L-band signals, DC power, and an external 10 MHz reference into compatible satellite communication systems. Its low insertion loss, IP67 protection, flexible connector options, and support for separate DC insertion make it a useful component for professional satellite RF infrastructure.
At VSATPlus, customers can source satellite communication components for ground stations, VSAT networks, teleports, and other professional RF installations. Our team can assist with identifying the appropriate connector configuration, checking DC-blocking requirements, and selecting the correct part number for your application.
Whether you are upgrading an existing satellite installation or designing a new RF system, choosing the correct diplexer configuration is essential for proper integration.
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