Product ID: SLR 5500
The MOTOTRBO™ SLR 5500 is a next-generation professional radio repeater engineered for round-the-clock reliable operation at full 50 W transmit power. Featuring a space-efficient 1U height, low thermal footprint, next-generation high-sensitivity receiver, and an integrated 12V 3A battery charger, it delivers exceptionally low total cost of ownership. Designed with field-replaceable Power Amplifier, Power Supply, and Modem modules, along with 10x processing power and 15x memory over first-generation repeaters, the SLR 5500 is future-proofed for evolving communication needs. Supports DMR Tier II/III digital protocols, analog conventional, and MPT 1327 trunking systems.
Product features:
100% continuous duty cycle operation at full 50 W RF transmit power 
Compact 1U rackmount form factor minimizing space requirements and site costs 
Integrated 12 V / 3 A battery charger, external alarm ports, and auxiliary power output 
High RF power efficiency and low thermal footprint for reduced ownership cost 
Modular architecture with field-replaceable Power Amplifier, Power Supply, and Modem 
Future-proof hardware platform with advanced processing capability and expansion module provision • Product description
The Motorola SLR 5500 represents a major technological leap forward in radio repeaters. Validated through Motorola Solutions Accelerated Life Testing (ALT) programme, it delivers rock-solid reliability under continuous full-power conditions. Combining a next-generation receiver design with superior noise blocking, 50 W RF output power, and digital error correction, the SLR 5500 ensures clear voice and data connectivity throughout your business premises.
The SLR 5500 repeater scales easily from simple single-site setups to complex multi-site trunked networks. Ideal for industries including:
Manufacturing & Industrial: factory floors, processing plants, utility sites
Transportation & Logistics: logistics hubs, seaports, rail terminals, airports
Commercial & Education: large retail centers, university campuses, hospitality complexes
Public Safety & Security: property security, emergency management, critical infrastructure
• Specification
SKU / Catalog Number
SLR 5500
Device Type
Fixed / 1U Rackmount Repeater
Dimensions (H x W x D)
44 x 483 x 370 mm
Weight
8,6 kg
Frequency Range
VHF: 136-174 MHz 300 MHz: 300-360 MHz / 350-400 MHz UHF: 403-470 MHz / 450-527 MHz
RF Output Power
1–50 W
Max Duty Cycle
100%
Channel Spacing
12,5 / 20 / 25 kHz
Frequency Stability
±0,5 ppm
Channel Capacity
64
Digital Vocoder
AMBE+2™
Operating Temperature Range
-30°C to +60°C
Humidity
RH of 90%, non-condensing at 50°C
Digital Protocol
ETSI TS 102 361-1, -2, -3, -4 (DMR Tier II & Tier III)
Input Voltage (AC)
100-240 Vac, 47-63 Hz
Input Voltage (DC)
11,0-14,4 Vdc
AC Current Drain (Standby)
0,25 A (110 V) / 0,18 A (240 V)
AC Current Drain (Transmitting at 50 W)
1,5 A (110 V) / 0,9 A (240 V)
DC Current Drain (Standby)
0,7 A
DC Current Drain (Transmitting at 50 W)
9,5 A
Battery Charger Capacity
12 V, 3 A
Connectors
Tx (N female), Rx (BNC female), USB B receptacle (front panel), 2x Ethernet
Sensitivity (12 dB SINAD)
0,22 µV
Sensitivity (5% BER)
0,22 µV
Selectivity TIA603E (12.5 / 20 / 25 kHz)
VHF: 55 / 83 / 83 dB 300 MHz: 55 / 80 / 80 dB UHF: 55 / 80 / 80 dB
Selectivity TIA603E (20 / 25 kHz)
VHF: 68 / 83 / 83 dB 300 MHz: 68 / 80 / 80 dB UHF: 68 / 80 / 80 dB
Selectivity ETSI (12.5 / 20 / 25 kHz)
63 / 70 / 70 dB
Intermodulation Rejection (TIA603E / ETSI)
82 / 73 dB
Spurious Rejection (TIA603E / ETSI)
95 / 90 dB
Audio Distortion
< 2%
Hum and Noise (12.5 / 20 / 25 kHz)
-45 / -45 / -50 dB
Intermodulation Attenuation
40 dB
Adjacent Channel Power TIA603E (12.5 / 20 / 25 kHz)
62 / 78 / 78 dB
Adjacent Channel Power ETSI (12.5 / 20 / 25 kHz)
62 / 78 / 78 dB
Conducted Spurious Emissions
-36 dBm for < 1 GHz / -30 dBm for > 1 GHz
Modulation Fidelity 4FSK
FSK Error: 5% / FSK Magnitude: 1%
Audio Response
TIA603E
Audio Distortion
< 1%
Hum and Noise (12.5 / 20 / 25 kHz)
-45 / -45 / -50 dB
Rated System Deviation (12.5 / 20 / 25 kHz)
±2,5 / ±4,0 / ±5,0 kHz
Supported System Types
Digital Conventional, IP Site Connect, Capacity Plus (Single Site and Multi-Site), Capacity Max, Analogue Conventional, MPT 1327
Package Contents
1 x MOTOTRBO SLR 5500 Repeater 1 x AC Power Cable 1 x User Manual / Documentation
Service Modules
Field-replaceable Power Amplifier module Field-replaceable Power Supply module Field-replaceable Modem module
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