SignalGround gives telecommunications attorneys geospatial interference maps, full ownership chains, and 35 auto-computed RF engineering parameters — for any U.S. location, in seconds. One-click PDF export, exhibit-ready.
Dear Counsel — every spectrum matter your firm handles begins the same way. Before the interference analysis can begin, before the ownership picture comes into focus, before a single RF calculation is made, someone on your team spends days pulling records one station at a time from the federal licensing database, assembling coordinates in a spreadsheet, and chasing entity names through a system that was designed for licensing clerks — not for attorneys preparing a proceeding.
That workflow has not changed in twenty years. The underlying licensing data has grown enormously. The cases have grown more complex — CBRS priority access, 5G small cell deployments, FirstNet spectrum disputes, microwave path clearance challenges, broadcast license contests. But the research process remains what it was: slow, manual, and entirely without geographic context.
"The interference picture should be ready before counsel picks up the phone — not three days after the matter opens."
SignalGround was built to change that. Enter any U.S. address. Define a radius. In seconds, every licensed station in that area is returned — mapped geospatially on an interactive map, with the full ownership chain on every callsign, and 35 radio frequency engineering parameters automatically calculated from the actual license data. The entire result exports to a structured PDF — signal inventory, ownership records, RF calculations, and maps — formatted for exhibit use and citing public licensing record throughout.
We are writing to the firms on this list because your practices represent the full range of spectrum work where SignalGround is most directly useful: interference disputes, license challenges, spectrum M&A due diligence, tower siting proceedings, CBRS and 5G allocation matters, broadcast licensing contests, utility corridor work, and expert witness support. We think you will find the platform genuinely useful on active matters. We offer a trial scan on any location of your choosing before any commitment is requested.
The sections below describe the platform's capabilities, the specific practice areas it covers, the products included in the attorney tier, and the access terms. We welcome any questions at support@signalground.net.
Every entry in this table reflects a real proceeding type where fast, geospatial spectrum data changes how counsel prepares.
| Matter Type | Product | What SignalGround Returns | How Counsel Uses It |
|---|---|---|---|
| Interference Disputes | FB-100FB-510 | All licensed stations within the interference radius; co-channel and adjacent-channel assignments; EIRP and radio horizon for each station; geospatial map of the interference geometry | Map who is licensed in the contested band and area. Establish or rebut the interference claim with the actual licensed operational parameters — before the expert witness engagement begins. |
| License Challenge / Petition to Deny | FB-420FB-850 | Full license record, modification history, coverage geometry, and co-channel licensees for the challenged station | Develop the factual record for a petition to deny or renewal challenge. Identify co-channel conflicts the applicant failed to address. |
| Spectrum M&A Due Diligence | FB-100FB-420FB-510 | Complete license inventory for a target entity, across all markets and service types — active, expired, and cancelled — with geographic footprint and encumbrance flags | Inventory every license held by an acquisition target before assignment applications are filed. Identify expiring authorizations, unbuilt stations, and geographic overlaps without a manual record-by-record pull. |
| Tower Siting Disputes | FB-100FB-510 | Full antenna support structure registry — owner entity, structure height, overall height, FAA coordination status, and all co-located licensees | Identify every existing structure and co-located user in the project area. Support or contest height variance challenges with registered infrastructure data. |
| CBRS PAL / 5G Allocation Disputes | FB-350 | Priority Access License holders by census tract; 3.45 GHz assignments; licensed 5G spectrum blocks by carrier entity | Identify who holds spectrum priority in a disputed census tract. Analyze 5G infrastructure deployment for coverage and preemption arguments. |
| Eminent Domain — Telecom Infrastructure | FB-100FB-450 | All licensed stations on or adjacent to the subject property; antenna heights; frequency assignments; coverage footprints; tower registry | Quantify licensed spectrum use displaced by the taking. Document the full licensed operational profile of affected stations for valuation purposes. |
| Regulatory Compliance Audit | All Products | Active license status, expiration dates, modification flags, and coverage for every callsign under a client's registration number | Verify a client's complete license inventory against the public record. Flag expired authorizations and unbuilt stations before they become enforcement issues. |
| Expert Witness Support | All Products | Complete scan export: signal inventory, RF calculations, ownership chains, geospatial maps — with 5-year audit log and unique serial number on every session | Supply the factual data layer for expert testimony. Serial number tracking and session logs support chain-of-custody documentation for evidentiary purposes. |
Every licensed entity carries a unique identifier. SignalGround surfaces the entity name, address, phone, and all associated licenses under a single registration — critical for identifying beneficial owners and DBAs behind spectrum holdings.
Every licensed station positioned by registered coordinates on an interactive map. Density rings, heatmaps, and microwave link path geometry rendered automatically. The interference picture is visible in seconds — not days.
Free space path loss, effective isotropic radiated power, radio horizon, Fresnel zone, link margin, rain fade, coverage radius, and propagation delay — all calculated from the actual license data. No manual engineering work required for preliminary analysis.
Every registered antenna support structure — owner, height, FAA study status, and all co-located licensees — available for any scan area. Essential for siting disputes, height variance challenges, and eminent domain proceedings.
Active, conditional, expired, and cancelled licenses all returned. Grant dates, expiration dates, and modification flags visible for every callsign — confirming the operational status of a station at any date relevant to the matter.
Every session is assigned a unique serial number. Scan logs are retained for five years. Supports chain-of-custody documentation for expert witness engagements and litigation holds requiring verifiable data provenance.
SGND-ATT-2026 includes unlimited access to all nine products. Activate for a matter, cancel after. No annual commitment required.
Full public safety spectrum — P25 Phase I/II trunked systems, FirstNet Band 14, VHF/UHF first responder assignments, interoperability channels, and 4.9 GHz broadband licensing.
Licensed fixed microwave backhaul links with path geometry, endpoint coordinates, antenna heights, and link performance calculations. Directional links rendered on the map.
Citizens Broadband Radio Service Priority Access Licenses by census tract. 3.45 GHz DoD band assignments. Licensed 5G spectrum blocks by carrier entity across all markets.
Full broadcast licensing — commercial and noncommercial stations, translators, boosters, and LPTV. Coverage contour geometry and full ownership structures.
All licensed cellular spectrum across carriers — AWS, PCS, 700 MHz, 850 MHz, FirstNet Band 14, and licensed 5G NR blocks. Full carrier entity mapping.
Smart grid, SCADA, pipeline corridor, electric utility, and private land mobile spectrum for industrial and utility operations — the full licensed utility RF profile.
VHF marine, coast station, ship station, and port operations spectrum. Coverage analysis by waterway and port authority jurisdiction.
Radar systems, navigation aid frequencies, airport approach corridor spectrum, and aeronautical mobile assignments mapped by airport and corridor.
Electromagnetic interference safety analysis — hospital and medical device proximity, RF emission compliance mapping, and effective radiated power footprint visualization.
Designed for how attorney engagements actually work — activate for a matter, cancel after. No annual contract required.
We appreciate your time in reading this. SignalGround is a young company — a company founded on the belief that the people who protect public safety, defend spectrum users, and maintain the integrity of the licensed airwaves deserve better tools than what currently exists.
If you have a spectrum matter open right now — an interference dispute, a license challenge, a transaction in progress — we would be glad to run a complimentary scan on any location relevant to that matter and walk you through the output on a fifteen-minute call. No sales process. Just the data.
If the platform is not useful to your practice, we will tell you that plainly. If it is, we think the value will be evident from the first scan.