Ericsson KRC161713/1 Radio 4428 B3 Radio unit

High-Efficiency 4T4R Remote Radio Unit for LTE Band 3 (1800 MHz)

The Ericsson Radio 4428 B3 (KRC 161 713/1) is a compact and robust Remote Radio Unit (RRU) designed for high-performance LTE deployments on KRC161713/1 Band 3 (1800 MHz). Part of the proven Ericsson 4400-series radio platform, the Radio 4428 delivers reliable and efficient operation in demanding macro-network environments. Its 4T4R configuration enables enhanced uplink and downlink performance, improved MIMO capability, and increased sector capacity—ideal for modern LTE networks requiring strong coverage and stability.

The radio is built for outdoor installation and can be mounted directly on a mast, tower, or pole, reducing feeder losses and improving overall RF efficiency. With a total output power of 160 W (4 × 40 W), the Radio 4428 B3 provides excellent performance for medium to high-capacity sites. It integrates seamlessly with Ericsson baseband units through high-speed optical interfaces and supports multi-standard operation across GSM, WCDMA, and LTE.

Key Technical Features

• Frequency Band: Band 3 (1800 MHz)

• Transmit/Receive Architecture: 4T4R (4 Transmit / 4 Receive)

• Total RF Output Power: 160 W (4 × 40 W)

• Supported Technologies: GSM, WCDMA, LTE

• Radio Type: Outdoor Remote Radio Unit (RRU)

• Interface: Fiber-optic fronthaul to Ericsson baseband

• Power Input: –48 V DC

• Mounting Options: Pole, mast, or tower installation

• Environmental Protection: Outdoor-rated chassis for harsh conditions

  Technical Specifications

  Parameter	Specification
  Model	Ericsson Radio 4428 B3
  Part Number	KRC 161 713/1
  Operating Band	LTE Band 3 (1800 MHz)
  Transmit Power	40 W per TX port
  Total Power	160 W
  TRX Configuration	4T4R
  Supported Modes	GSM / WCDMA / LTE
  Input Voltage	–48 V DC
  Cooling	Passive, outdoor convection
  Installation	Mast / pole / tower mounting
  Use Case	Macro network deployments

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