Bias tee — DC inserter, 10–6000 MHz, module

Product detailed description

The 10–6000 MHz bias tee is used to inject DC power into a coaxial cable along with the RF signal, typically for powering active antennas and low-noise amplifiers (LNA) located directly at the antenna. The DC+RF output carries both the RF signal and the power supply, while the RF output is isolated from the DC voltage, allowing you to safely connect a receiver, SDR, or spectrum analyser. Featuring low insertion loss (approx. 0.3 dB at 512 MHz), the module supports voltages up to 50 V and currents up to 500 mA; the power is connected via a screw terminal block, with its presence indicated by a PWR LED. Suitable for receiving GPS/GNSS, ADS-B, SDR, LoRa or meteorological satellites with an antenna preamplifier.

Specifications:

• Type: bias tee (power/blocking element for coaxial lines)
• Frequency range: 10–6000 MHz
• Insertion loss:
  • approx. 0.3 dB at 512 MHz
  • approx. 0.45 dB at 1575 MHz
• Impedance: 50 Ω
• Max. voltage: 50 V DC
• Max. current: 500 mA
• Inputs and outputs:
  • RF: SMA female – RF signal only, isolated from DC (to receiver / SDR)
  • DC+RF: SMA female – RF signal + power (to active antenna / LNA)
  • DC (VCC+, GND−): screw terminal for external power supply
• Indication: PWR LED when power is connected
• Dimensions: approx. 33 × 33 mm (excluding connectors)
• Mounting: 4 mounting holes at the corners of the board
• Typical applications:
  • powering active antennas (GPS/GNSS, ADS-B, DVB-T, LoRa) via coaxial cable
  • powering a low-noise amplifier (LNA) located at the antenna
  • DC blocking for a receiver or measuring instrument input

Important wiring notice:

• DC voltage is present at the DC+RF output – connect only devices designed for coaxial powering (active antennas, LNAs with cable powering). Always connect the receiver, SDR, analyser, or generator to the RF output.
• Select the power supply voltage based on the powered device (antenna, LNA); the module only passes it through – do not exceed 50 V and a current draw of 500 mA.
• Observe the power polarity (VCC+ and GND−) and connect the cables before switching on the power source.

Package contents:

• 1× bias tee module 10–6000 MHz with screw terminal block

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.