Bias Tee / DC Injectors
Flexible bias tees for wide frequency range applications with impedance options
ETL’s Bias Tees operate across a range of frequencies and are available with 50Ω or 75Ω impedance and various connector types. Each module is designed for easy mounting on a base or panel and is housed in non-hermetic EMC-shielded enclosures. Options include a 10MHz rejection filter and a high-current version for powering multiple modules or devices up to 5A and 48V.
Our Bias Tees enable DC bias to be added or removed from an RF line without disrupting the RF signal, providing a combined path for DC power and RF signals—ideal for powering amplifiers and frequency converters in transmission systems.
Typical fields of application include:
- Microwave Links
- Telecom Infrastructure
- Satellite Systems
- Test & Instrumentation
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Not everything is listed on our website.
If you can’t find what you’re looking for or need a custom solution, contact our team.
ETL Systems also provides a range of DC Injector products to deliver DC power to RF system components.
Did you know we also offer DC Power Inserter modules in our modular Genus Habitat?
This area is currently under development
For specific information, datasheets or enquiries regarding this product range, please get in touch with our team on the link below.
Versatile bias tees with high current and flexible mounting
ETL’s 4000 series Bias Tees are versatile components designed for a range of frequencies and available with 50Ω or 75Ω impedances, along with various connector options. These modules are easy to mount on a base or front/rear panels and come in EMC-shielded, non-hermetic housings. They feature traps for rejecting 10 MHz signals and high-current versions that can power up to 5A at 48V, suitable for powering multiple modules. Additionally, they can either pass or block 10 MHz signals or DC voltages, supporting stable frequency references or power supply for components like LNBs and BUCs.
Need help selecting the right RF Component for your project?
Only a selection of our products are listed on the site. If you can’t find what you’re looking for or have specific requirements, our team is here to assist you in finding the perfect solution.
FAQ
The ETL 4000 series Bias Tees operate over a wide range of frequencies, accommodating various RF applications. Specific frequency support will depend on the exact model and configuration.
The ETL 4000 series Bias Tees are available in both 50Ω and 75Ω impedances, allowing flexibility to match different system requirements and connectivity needs.
Yes, the Bias Tees in the 4000 series include high-current versions capable of powering multiple modules or handling currents up to 5A and 48V, making them suitable for demanding applications.
Yes, many models in the ETL 4000 series come with optional traps for 10MHz signal rejection, which helps in filtering out unwanted signals and maintaining signal integrity.
The ETL 4000 series Bias Tees are designed for flexible mounting options. They can be mounted onto a base, or onto front or rear panels, depending on your system setup.