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Dual Channel Bias Tee with L-Band/DC Passthrough and 10MHz Reference Mux

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The 2406BIAST-2 is a high-performance dual channel Bias Tee, suitable for a wide range of satellite antenna applications. Typical applications are seen when the downstream device of the LNB does not supply the 10MHz reference source and/or DC power. This next generation Bias Tee provides a neat and simple solution to supply the 10MHz and DC power to dual LNBs on the same RF cable as the L-Band outputs of the LNBs.

The 2406BIAST-2 comes equipped with 2x L-Band inputs (LNB 1/2), 2x L-Band outputs (Rx 1/2), a 10MHz reference input and DC input. The L-Band inputs come from the LNB and pass through to the L-Band outputs (Rx 1/2) to the downstream devices. The 10MHz input and DC power is multiplexed and sent to both L-Band inputs (LNB 1/2) to supply 10MHz reference and DC power to both LNBs.

The LNBs can be powered by the downstream device if applicable (i.e. Evertz RF over Fiber transmitter) as the 2406BIAST-2 features DC passthrough. If the downstream devices do not have DC power or if external DC power is preferred, an external DC input is available for a current up to 1000mA.


  • Compact, mountable form factor
  • DC passthrough for LNB power
  • External DC input
  • Weatherproof, IP65-rated (+WP option)
  • Compatable with LNBs, BUCs, modems and more
  • Dual channel to support two LNBs
  • 22kHz tone on/off LNB local oscillator control, DiSEqC protocol
  • Low insertion loss
  • Passive device for high reliability
  • Low passband ripples
  • Can be mounted inside Evertz' 2400ODU Integrated Fiber Transport System



L-Band Inputs 2
L-Band Outputs 2
10MHz Inputs 1
DC Inputs 1
Connectors F-Type (SMA, BNC optional)
阻抗 75Ω (50Ω optional)


Frequency Range 100 – 2500MHz
Thru Loss 0.5dB maximum
Ripple/Flatness ±0.5dB maximum
Input VSWR 1.5:1 maximum
Output VSWR 1.5:1 maximum
Input Return Loss 14dB
Output Return Loss 15dB

LNB Power Supply and Control

电压 13/18V DC, off (selectable)
LO Control 22kHz on/off (selectable) DiSEqC
Maximum Current 1000mA
Protection Short circuit, overload
Conductor Range 23-18 AWG (0.26-0.82 mm2)

10MHz Reference

端口数目 50Ω BNC
Input Frequency 10MHz

DC Input

电压 +18V DC nominal, +11 to +18V DC range (> LNB min input voltage required when powering an LNB)


尺寸 with flanges
5.4" L x 2.4" W x 1.2" H
(138mm L x 61mm W x 31mm H)


Operating Temp -40 to +80°C
Relative Humidity Up to 100% condensation and frost
Dust/Water Protection IP65 (+WP version)


2406BIAST‑2 High performance dual-channel Bias Tee, passes through DC and L-Band with a 10MHz reference multiplexer; external DC input option for built-in LNB powering (external power supply sold separately)


+WP Weatherproof option
+PS External DC power supply brick, 100 – 240V AC auto-ranging input, indoor mounting with F-Type connector

Connector Options

-S50 50Ω, SMA connectors
-B50 50Ω, BNC connectors