Ericsson radio category illustration — Illustration

Radio 4428 B1

Name: Ericsson Radio 4428 B1
Brand: Ericsson

What it does: Radio transmission / reception. Operating RF bands / ranges: B1.

1 part number: KRC161735/1

Viewing: model overview

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Main specifications

TechnologiesGSM; WCDMA; LTE

Operating RF bands / rangesB1
Browse: B1

Uplink frequency1920–1980 MHz

Downlink frequency2110–2170 MHz

TX / RX modes4T4R (four duplex branches; 4T4R MIMO, antenna calibration and TX/RX diversity)

RF output powerUp to 4 × 40 W

Interfaces / connectors4 × 4.3-10(f) antenna; RS-485 AISG TMA/RET; 2 × optical CPRI SFP; 2 external alarms; dual-lug ground; -48 V DC input

Interfaces and data rates2 × CPRI at 2.5/4.9/9.8/10.1 Gbps with exchangeable SFP; star/cascade baseband link up to 40 km; RS-485 AISG TMA/RET with 12 dB TMA support

Power supply-48 V DC, 2-wire

FamilyRadio 4428

Installation environmentOutdoor rail, wall or pole mount; preferably near the antenna; optional AC PSU available

IP ratingIP65 outdoor class

Additional technical information

Dimensions: 420 × 342 × 131 mm (H × W × D)
Weight: 16 kg
Bandwidth: IBW up to 75 MHz; 20 MHz for GSM and LTE 1.4/3 MHz carriers
Capacity: GSM: up to 12 carriers; WCDMA: up to 8 carriers; LTE: up to 6 carriers in MIMO
Synchronization: When operated over its documented classic CPRI interface: CPRI slave synchronization; the radio recovers the incoming CPRI bit clock for radio/link transmission and receives time information from the REC/Baseband
Chassis: Standalone outdoor IP65 Radio 4428 enclosure with Ericsson Rail/wall/pole mounting
Modules: 2 exchangeable SFP modules for the optical CPRI ports; optional external AC PSU
Functional role: Outdoor macro ERS radio unit for an external antenna
Architecture: Self-contained near-antenna radio with optical CPRI link to baseband up to 40 km in star/cascade topology; external AISG TMA/RET supported
Subtype: 4T4R single-band FDD macro radio
Details: 15 l volume; normal operation -40 to +55 °C; cold start at -40 °C
Connection notes: DU/Baseband via CPRI