We have WiFi everywhere — why do we still care about cellular coverage?

WiFi handles a portion of in-building traffic, but cellular increasingly carries scanner backhaul, push-to-talk, vehicle telematics, voice calls, and visitor/contractor connectivity. Many newer scanner platforms default to cellular for critical traffic. Cellular and WiFi solve different problems, and most warehouses need both to work well.

Can you survey while operations are running?

Yes, and we usually prefer to. Measuring during a live shift captures the real interference environment — RF noise from chargers and VFDs, occupant density, equipment movement — that an empty-building survey would miss. We coordinate with operations to stay clear of active equipment and high-traffic lanes.

Do you measure inside cold storage and freezer zones?

Yes. We include refrigerated and frozen zones in the survey scope and coordinate appropriate PPE in advance. These areas are typically the worst-performing in the facility and are the most important to characterize accurately for DAS design.

How long does a typical warehouse survey take?

It depends on square footage, ceiling height, racking density, and the number of distinct zones (cold storage, mezzanines, etc.). A single-level 250,000 square foot DC is typically 1–2 days on site. We will provide a specific timeline during scoping.

Warehouse & Distribution Center Signal Surveys

Onsite RF measurements for warehouses, fulfillment centers, and distribution hubs — the empirical data behind reliable scanner connectivity, IoT, and DAS investment.

Warehouses and distribution centers are among the most RF-hostile commercial environments in operation. Metal-clad exteriors, steel-framed racking systems thirty feet high, refrigerated zones, mezzanines, and acres of open floor space combine to shred cellular signal in ways that are invisible to a casual walkthrough. As operations lean harder on handheld scanners, autonomous mobile robots, vehicle telematics, and cellular-backhauled IoT sensors, dead zones translate directly into measurable productivity loss. A professional signal survey delivers the documented coverage map that operations, IT, and facility leadership need to size a DAS, justify capital expenditure, or troubleshoot persistent connectivity complaints.

Cellular coverage analytics dashboard for a distribution facility

RF Challenges in This Environment

The specific physical and operational conditions that make indoor cellular coverage hard in this kind of facility.

Metal building envelopes

Insulated metal panel construction, metal roofing, and steel structural elements are effectively opaque to cellular signal. Many distribution buildings receive almost no usable macro coverage past the exterior wall.

High-bay racking systems

Pallet racks 20–40 feet tall, often filled with metallic inventory and wire decking, create complex multipath reflection patterns and shadowing that varies dramatically by aisle and shelf level.

Refrigerated and frozen zones

Cold storage areas use thick insulated panels with foil vapor barriers that further attenuate signal. Operators in these zones often experience the worst connectivity in the entire facility.

Loading dock thresholds

Coverage typically falls off a cliff as a forklift or scanner moves from the dock door (with line-of-sight to outdoor towers) deeper into the building. This creates intermittent connection drops at one of the highest-activity zones in the operation.

Mezzanines, offices, and pick modules

Internal partitioned spaces nested inside the main building experience compounded attenuation — first through the exterior envelope, then through interior walls and steel deck flooring.

Why a Signal Survey Matters Here

Every dropped scan, every retry on a barcode read, every AMR that loses telemetry and stops mid-aisle costs throughput. Distribution leaders rarely have visibility into the root cause because end-user complaints get attributed to 'WiFi' or 'the scanner.' A grid-based cellular survey lays out the real coverage map for every carrier, identifies the specific aisles and zones where cellular service is unusable, and gives integrators the dataset they need to design a DAS that solves the actual problem instead of guessing at antenna placement.

How We Survey This Environment

Methodology tailored to the realities of this facility type.

Grid survey across the full footprint with tighter density at dock doors, pick modules, charging stations, and refrigerated zones.
Vertical measurement at multiple rack heights where workflows depend on connectivity at upper levels (e.g., high-bay VNA forklifts).
Capture of all major carriers simultaneously to support multi-carrier DAS or carrier-specific solutions.
Outdoor perimeter readings to characterize donor signal strength and identify the best macro sectors for a potential DAS headend.
Deliverables include heatmaps overlaid on facility floor plans, dead zone lists with aisle-level granularity, and an interactive dashboard for operations review.

Common Use Cases

Scanner and IoT connectivity diagnosis

Replace anecdotal scanner-drop complaints with a quantified coverage map that pinpoints exactly which aisles and zones are unusable for cellular-backhauled devices.

DAS RFP preparation

Provide integrators with the empirical baseline they need to size and price a distributed antenna system for the building, instead of relying on rules of thumb.

New-build coverage planning

Document outdoor donor coverage and predicted indoor attenuation for a planned facility before steel goes up, informing DAS scope during construction.

Lease and acquisition due diligence

Verify that a building under consideration can support the connectivity profile your operation requires before signing or closing.

Warehouses & Distribution Survey FAQ

Request a Warehouses & Distribution Signal Survey

Tell us about your facility and coverage goals. We'll provide a detailed proposal with scope, timeline, and pricing.