Exploring The ADRF SDR Series: Modular Commercial RF Repeaters
Reliable in-building wireless service is a foundational requirement for modern commercial venues. Operations in retail, hospitality, and corporate environments depend on consistent cellular and data coverage to support staff, customers, and essential business systems. However, construction materials, interior layouts, and distance from carrier towers frequently degrade signal quality, creating coverage gaps that impact efficiency and user experience.
The ADRF SDR Series addresses these challenges with a family of modular, software-defined repeaters. This platform combines advanced digital filtering with a flexible architecture that can be configured for multiple frequency bands and power levels in a single chassis, delivering dependable voice and data coverage for diverse commercial environments.
What is the ADRF SDR Series?
The ADRF SDR Series is a family of software-defined radio repeaters engineered for commercial venues where voice and data coverage is limited or unreliable. Its modular design and sophisticated digital filtering capabilities help reject adjacent carrier signals, making it a next-generation RF repeater solution. The system is designed for flexibility, allowing up to four hot-swappable modules to operate in one chassis, supporting quad-band service tailored to specific site requirements.
Through our partnership with ADRF, MCA delivers these versatile repeater solutions, supported by our service-first approach to engineering and implementation. Our certified teams assess the unique RF environment of each facility to design and deploy a customized SDR configuration that resolves coverage issues effectively. This ensures that the final solution aligns with both current needs and future growth plans.
Advanced Technical Architecture
The SDR platform is built on a foundation of modularity and high-performance digital signal processing. This combination provides a future-ready solution that can adapt to changing network demands without requiring a complete system overhaul.
Modular and Flexible Design
The core of the SDR Series is its modular chassis, which can house up to four individual repeater modules. This architecture offers significant advantages for system design and lifecycle management.
- Quad-Band Support: A single chassis can support up to four different frequency bands simultaneously, allowing for a compact, multi-carrier solution.
- Mixed Power Levels: The system supports mixing and matching of modules with various output power levels (24 dBm, 30 dBm, or 33 dBm), enabling precise coverage planning for different zones within a venue.
- Hot-Swappable Modules: Modules can be added, removed, or replaced without powering down the entire system, minimizing downtime during upgrades or maintenance.
- Future-Proof: As new frequency bands are deployed by carriers, new modules can be added to the existing chassis, protecting the initial investment.
High-Performance Digital Filtering
The SDR Series utilizes channelized digital filtering with sharp roll-off characteristics. This advanced technology is crucial for maintaining signal integrity in crowded RF environments.
- Adjacent Channel Rejection: The sharp filtering (e.g., 50-65 dBc at the sub-band edge) effectively isolates the desired carrier signals and rejects interference from nearby channels.
- Band Selectivity: Filters can be configured in selectable blocks, providing precise control over the amplified spectrum.
- System Gain: The platform delivers high system gain—up to 95 dB depending on the module—to overcome significant signal loss and extend coverage deep into buildings.
Intuitive System Management
ADRF has engineered the SDR Series for straightforward commissioning and management. The platform includes an integrated web-based GUI that simplifies configuration and monitoring.
- Local and Remote Access: The system can be managed locally via an RJ45 Ethernet port with DHCP for quick connection. It also supports external wireless modems for remote access, control, and SNMP-based alarming.
- No Third-Party Software: All management functions are accessible through the web GUI, eliminating the need for specialized software.
- System Safeguards: Features like Automatic Gain Control (AGC), oscillation detection, and overload shutdown routines work automatically to maintain optimal network performance and prevent interference.
SDR Series Product Portfolio
The SDR Series includes a wide range of modules covering major commercial frequency bands used by North American carriers. This allows for a highly customized solution tailored to the specific needs of any venue.
Low-Band and Mid-Band Modules
- SDR-30-600 (600 MHz): With 90 dB gain and 30 dBm output power, this module is ideal for deploying extended LTE coverage in low-band spectrum.
- SDR-24/30/33-700F (700 MHz): Available in three power tiers, this module supports commercial LTE and public safety frequencies, offering scalable solutions for different venue sizes.
- SDR-24/30/33-C (Cellular 850 MHz): This module ensures strong voice and data coverage for traditional cellular services.
- SDR-24/30/33-S (SMR 800/900 MHz): Provides superior adjacent channel rejection for reliable performance in the SMR 800/900 bands.
High-Band and Capacity Layer Modules
- SDR-24/30/33-P (PCS 1900 MHz): Optimized for high-capacity PCS bands, this repeater is well-suited for environments with high user density.
- SDR-24/30/33-AF (AWS 1700/2100 MHz): Covers the AWS frequencies widely used by carriers for both LTE and 5G deployments.
- SDR-33-B (BRS FDD-LTE): A 33 dBm module focused on the 2.5 GHz band for BRS deployments.
- SDR-33-BT (BRS TDD-LTE): Tailored for TDD-LTE networks in the 2.5 GHz spectrum, supporting flexible uplink and downlink configurations.
- SDR-33-BTF (BRS for 4G/5G): A future-ready module designed for next-generation LTE and 5G, with differentiated filtering for 4G and 5G signals to ensure optimal performance.
SDR-NMS Chassis
The SDR-NMS is the chassis that houses the repeater modules. It includes the power supply, management interface, and physical slots for up to four modules. The 19-inch rack-mountable unit comes with a wall-mount bracket for flexible installation in telecom closets or equipment rooms.
Applications in Commercial Environments
The ADRF SDR Series is a versatile solution for tackling indoor coverage challenges across a range of commercial properties. Its modularity and performance make it a strong choice for:
- Hospitality: Hotels, resorts, and convention centers can ensure guests and staff have reliable mobile connectivity throughout the property, from guest rooms to conference halls.
- Retail: Shopping centers and large retail stores can support mobile point-of-sale systems, customer engagement apps, and inventory management platforms that rely on consistent data coverage.
- Corporate Offices: Medium-sized office buildings and corporate campuses can eliminate dead zones in conference rooms, common areas, and individual offices to enhance productivity.
- Healthcare: Clinics and non-critical areas of hospitals can improve cellular service for patients, visitors, and administrative staff.
A Collaborative Approach to Coverage
Selecting the optimal in-building wireless solution requires a thorough understanding of your unique facility needs, RF environment, and operational objectives. At MCA, our certified professionals partner with you through every stage—from initial consultation to site survey, system design, and deployment. We help determine whether the ADRF SDR Series aligns best with your requirements or if another solution from our extensive partner portfolio might provide a better outcome.
A comprehensive site evaluation allows us to tailor recommendations that balance performance, scalability, compliance, and budget. Our consultative approach ensures you receive a solution—whether the SDR Series or an alternative—that truly meets the demands of your business and environment.
Contact us to schedule a consultation and site survey, so we can design a wireless coverage strategy that delivers lasting value for your venue.
About MCA
MCA is one of the largest and most trusted technology integrators in the United States, offering world-class voice, data, and security solutions that enhance the quality, safety, and productivity of customers, operations, and lives.
More than 65,000 customers trust MCA to provide carefully researched solutions for a safe, secure, and more efficient workplace. As your trusted advisor, we reduce the time and effort needed to research, install, and maintain the right solutions to make your workplace better.
Our team of certified professionals across the United States delivers a full suite of reliable technologies with a service-first approach. The MCA advantage is our extensive service portfolio to support the solution lifecycle from start to finish.
