Variable-frequency drives (VFDs) in large HVAC and compressor systems — common in clean rooms, vivarium spaces, and GMP manufacturing corridors — generate broadband RF noise that sits directly in the 2.4 GHz band. That noise does not show up on a standard Wi-Fi scan, because standard Wi-Fi scanners are looking for 802.11 packets, not raw spectrum. Ekahau Sidekick 2 includes a hardware spectrum analyzer that captures all RF energy, not just 802.11. We run spectrum sweeps in every biotech and clean-room engagement before we finalize any predictive design. If VFD noise is present — and in Sorrento Valley and Torrey Pines facilities, it often is — we document the frequency, magnitude, and location, and design the AP channel plan around it. Missing it means your 2.4 GHz radios will be degraded from day one.

Yes, in an awareness-level capacity. Team members individually hold active DoD clearances from prior career work. WiFi Hotshots as a company does not hold a facility clearance. We work with defense-adjacent facilities in a coordinated, awareness-level capacity — equipment manifests in advance, escort protocols observed, photography and documentation restrictions applied per your security officer’s requirements, and NIST 800-171 / CMMC design-awareness built into SSID and VLAN architecture. Work inside classified spaces gets scoped directly with your security officer. If you are a Kearny Mesa or Miramar contractor with non-classified space that needs enterprise wireless design, that is a standard engagement for us.

Two things: device density and building stock heterogeneity. A UCSD or SDSU lecture hall at capacity runs 200 to 400 concurrent devices in a single room, all demanding throughput simultaneously. High-density design for that environment requires capacity modeling — APs sized and placed not just for coverage, but for the actual per-radio client load at peak. Standard office Wi-Fi design does not transfer. Simultaneously, university campuses mix building stock from 1960s reinforced concrete to 2020s glass research facilities — sometimes on the same floor. Attenuation values differ by building, wing, and renovation era. Ekahau lets us model each section correctly. Campus-wide outdoor roaming between buildings adds another layer: outdoor APs, outdoor-to-indoor transitions, and 802.1X identity propagation across the whole footprint. We have done this for large Southern California districts and campuses at scale.

Yes. Hospitality wireless has three concurrent challenges that standard office design doesn’t address: per-room coverage in concrete and CMU guest room corridors (which behave like a series of Faraday cages), high-density ballroom and meeting space that peaks at hundreds of devices simultaneously, and outdoor coverage for pool decks, courtyards, and outdoor dining that roams seamlessly to indoor. Each zone requires separate capacity modeling. Coronado’s hotel stock has dense concrete construction. La Jolla and Rancho Bernardo resort properties often have mixed indoor-outdoor footprints with significant multipath from landscape and hardscape. We design for the actual building and the actual peak count — and we validate after install.

It scales with square footage, floor count, building complexity, and survey type. A predictive-only engagement for a single-floor biotech office is a different scope from an AP-on-a-stick validation plus post-install heatmaps across a multi-floor Sorrento Valley research building with clean-room access requirements. Share the floor plans, the building type, and what you need to walk away with — we return a fixed-fee SOW, not an hourly estimate. No travel surcharge for San Diego County locations.

For any biotech clean room, defense-adjacent facility, hotel guest-room corridor, campus lecture hall, or industrial/warehouse space — onsite AP-on-a-stick is required. Predictive models cannot account for actual material attenuation in non-standard construction, HVAC interference loads, or RF-absorbing elements without measured values from the building. For new Class A office with documented standard materials and no unusual interference sources, predictive-only can be sufficient. Most serious San Diego engagements combine both: predictive first to establish the design, onsite to validate and correct the model before the PO goes out.

Both — or just the piece you need. Many San Diego clients engage us for design-only so their existing VAR, cabling contractor, or internal team can execute the install. Many engage us end-to-end: survey, design, install, validate, and operate under managed services. We also do white-label delivery under a VAR partner’s flag for partner-led deals. See Partners for how that works.

The Ekahau project file (.esx), annotated predictive and measured heatmaps per floor or zone (signal strength, SNR, data rate, channel utilization, interference overlay), AP BOM with antenna and mount specs, cabling and power requirements, channel and power plan, spectrum analysis findings with photos, and a remediation list if any gap exists. Biotech and healthcare engagements include HVAC interference documentation and device coexistence notes. Defense-adjacent engagements include equipment manifest records and access log documentation per your security officer’s requirements. The package is what your IT director, compliance officer, auditor, or the next engineer inherits — not a PDF of generic heatmap screenshots.