KT-L31RP-B4.9-P40LTE 450 band-selective repeater
LTE 450 band-selective repeater, 10 W
The full parameter table below is taken from the official datasheet. The PDF version — with dimension drawings and the complete standard-compliance table — is released on request, so we can send the exact revision your project needs.
Kingtone JIMTOM® LTE B31 Off-air Band Selective Repeater Datasheet (EN, 3 pages)
Overview
Band-selective repeater for LTE 450 MHz private networks: utility, public-safety and industrial deployments that are assigned narrowband slices. Downlink signals from the base station are received by the donor antenna and amplified to the service antenna; the uplink is received at the service antenna, amplified through a low-noise amplifier and an uplink PA, and retransmitted to the base station. Band, duplex spacing and working bandwidth are customisable.
- LTE 450 MHz band-selective repeater for narrowband private-network slices
- Downlink output in four tiers: 2 W / 5 W / 10 W / 20 W
- Working bandwidth up to 4.9 MHz — sized for narrowband assignments, not the 20 MHz of the LTE B3 models
- Delay of 1 µs or less, which keeps the round trip short
- AGC and ALC; gain adjustment ≥ 25 dB in 1 dB steps
- Local RS232 console plus optional remote monitoring over SMS or GPRS modem
- Waterproof IP55 enclosure for outdoor and all-weather installation
Parameter tables
Values are transcribed from the KT-L31RP-B4.9-P40 official datasheet. Where a range is given it is the datasheet's own range, not a rounded figure.
Radio
- Output power (downlink)
- +40 ± 2 dBm (10 W)
- Output power (uplink)
- +30 ± 2 dBm
- Maximum gain (downlink)
- 95 ± 3 dB
- Maximum gain (uplink)
- 95 ± 3 dB
- Frequency range (uplink)
- 452.5–457.4 MHz (customisable)
- Frequency range (downlink)
- 462.5–467.4 MHz (customisable)
- Duplex spacing
- 10 MHz (customisable)
- Maximum working bandwidth
- 4.9 MHz (customisable)
- Delay
- ≤ 1 µs
- Noise figure
- ≤ 6 dB
- Gain adjustable range / step
- ≥ 25 dB / 1 dB
- Gain adjustable error
- 0–20 dB: ≤ 1 dB; ≥ 21 dB: ≤ 1.5 dB
- Ripple
- ± 5 dB in bandwidth
- ALC
- When adding ≤ 10 dB at max. output level, output variation ≤ ±2 dB; when adding > 10 dB, output variation ≤ ±2 dB or be off
- Spectrum mask
- Complies with 3GPP TS 36.143
- Spurious emissions
- ≤ −36 dBm (9 kHz–1 GHz); ≤ −30 dBm (1–12.75 GHz)
- Maximum RF input level
- +5 dBm
- Minimum RF input level
- −70 dBm
- Maximum RF input without damage
- 10 dBm
- VSWR
- ≤ 1.5
- Impedance
- 50 Ω
- Connector
- N-Female
Mechanical and power
- Dimension
- 590 × 370 × 220 mm
- Weight
- 30 kg
- Maximum power consumption
- ≤ 200 W
- Power supply
- AC 220 V
- Operating temperature
- −5 to +75 °C
- Storage temperature
- −5 to +75 °C
- Operating humidity
- ≤ 95%
- Environmental class
- IP55
- RF connector
- N-Female, 50 Ω
- MTBF
- ≥ 50 000 hours
Monitoring system
- Local monitoring
- GUI base over RS232 cable
- Parameter setting
- Gain UL & DL
- Status monitoring
- Alarm & signal level; power supply, input/output power (UL/DL), temperature, VSWR
- Firmware download
- Yes
- Repeater restart function
- Yes
- Battery
- Yes
- Remote monitoring
- SMS or GPRS modem, optional
- Configuration of server
- Optional
- Remote monitoring server
- GUI base; parameter setting for gain UL & DL; status monitoring of alarm, signal level, power supply, I/O power and VSWR
Indicators are based on ETSI standard testing. Availability varies depending on the laws and regulations of each country. Unless otherwise specified, all displayed specifications are typical and subject to change without prior notice.
- The datasheet gives the working frequency range and duplex spacing as customisable but does not list which LTE band this configuration corresponds to. Confirm the band plan against the assignment before quoting.
Where our documents disagree with each other, we show both readings and confirm the value for your variant before you order. Tell us the model and band you need.
Certification status for this model is not recorded in this library. Do not state that it is certified without checking the certificate; ask us for the specific model number when you need the certificate.
See the certification registerKT-L31RP-B4.9-P40 datasheet and configuration quote
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- Datasheet PDF with dimension drawings
- Certificate numbers covering your variant
- RF link budget guidance for your scenario
- Compatible accessory and antenna options
Specification tables last reviewed 2026-10-15.