SKU: ILB-400-33W40

ILB-150-33W40 VHF High Performances In-Line Booster

Download Datasheet (PDF)

The EMTS LMR/PMR In-Line Booster (ILB) offers a robust solution to mitigate insertion losses from passive components and transmission losses in feeder cables, particularly in indoor distribution systems and tunnel coverage scenarios. By deploying the ILB, LMR/PMR operators can effectively expand the service area of a base station, offsetting feeder losses through signal amplification along coaxial or leaky cables utilizing Advanced Bi-Directional Technology.

The ILB's lightweight design, straightforward installation process, and user-friendly GUI enhance ease of deployment and operation. This solution is a cost-effective and practical option for improving signal coverage in areas with limited LMR/PMR network reach, such as buildings, shopping centers, airports, and tunnels. The ILB seamlessly integrates into passive Distributed Antenna Systems (DAS) via coaxial cable connections, offering a wide range of configuration options to meet diverse customer requirements.

Key Features

  • Optimized for Indoor and Tunnel Coverage: Designed for indoor distribution systems and tunnels
  • Advanced Bi-Directional Technology: Employs bi-directional amplification to ensure signal integrity
  • Multiple Power Options: Available in 30 / 33 / 37 dBm composite power types, compliant with LMR//DMR system standards
  • APCO-25 and Analog VHF Compatibility: Supports all configurations of APCO-25 and analog VHF band operations
  • Rapid RF Coverage Expansion: Enables quick deployment of RF coverage within an LMR network
  • Compact and Robust Design: High-performance, waterproof enclosure suitable for indoor/ outdoor
  • Metal Cavity Filter Technology: Delivers improved receiver-transmitter separation, gain flatness, enhanced stability, and a lower noise figure
  • Flexible Connectivity: Equipped with Wi-Fi or RJ45 port options for local monitoring, remote management through the built-in wireless modem, interfacing with the NMS
Technical Specifications
Technical Specifications
Downlink Uplink
Electrical Specifications
Frequency Range (136-174 MHz) 136-174 MHz
Bandwidth For uplink and downlink 1 to 5MHz with a gap of 3MHz or more
Output Power (33dBm) 20dBm
Gain (40±3dB) 40±3dB
In-band ripple ≤3dB
Gain adjustable range ≥30dB
Gain adjustable step 1dB
Noise figure ≤4dB
VSWR ≤2:1
Transmission delay ≤5us
Spurious ≤-36dBm (9KHz to 1GHz) ≤-30dBm (1GHz to 12.5GHz)
External connection
Connector N-F / 50 ohm
Alarm Detection HPA, LNA, TEMP, PSU, Digital IF module, Door Local LED display, Dry Contacts; RS232 local monitoring
Local Alarm; Via RJ45 connectivity using web browser PSU, HPA, LNA, Digital IF Module, Temp, Door open
NMS interface Using ethernet connectivity or 3/4G modem
Power Supply 110 to 220VAC ±15% 50-60Hz / 100 Watts Optional 24 Vdc or -48 Vdc
Environmental
Operating Temperature Range -20 to +55 °C
Cooling Convection
Environmental Sealing IP65
Operating Humidity Up to 95% (non-condensing)
Complies with EN 301 489-18, ETSI TS 101 789-1, EN 60 950
Standards 450×400×295 mm
Weight 18Kg areas, office buildings, subways, tunnels, and shadowed areas. The EMTS coverage solution supports all major mobile technologies and standards of wireless Networks.

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