Reviewed August 4, 2026
Universal Licensing System
Federal Communications Commission
Verify current wireless license records and authorization details. Signal Bench does not mirror live ULS data.
Open official sourcePrimary references
Source Drawer
A dated shelf for verifying identity, rules, authorization records, and RF-safety guidance outside the offline app.
Reviewed August 4, 2026
Title 47, Part 97
Electronic Code of Federal Regulations
Read the current amateur-radio rules. Rules Rack is only a dated learning summary.
Open official sourceReviewed August 4, 2026
Radio-frequency safety
Federal Communications Commission
Start from current FCC RF-exposure information and use qualified help for an actual assessment.
Open official sourceReviewed August 4, 2026
Club Grant Program
ARRL Foundation
Public context for the exact-name organization; this citation does not define a current club program or award amount.
Open official sourceReviewed August 4, 2026
Exempt Organizations Business Master File
Internal Revenue Service
Identity and public mailing-address reference for the publisher.
Open official sourceHow to use these citations
Open the current official source on a connected device when accuracy matters. Check dates, jurisdiction, amendments, equipment-specific instructions, and the actual license grant. A citation does not make Signal Bench a live mirror, regulator, exam authority, engineering service, or emergency resource.