Enter a frequency in MHz below and the tool will provide information on what the frequency is currently used for along with additional useful information. For example: 144 MHz
📘 3ROAM Data Dictionary 📌 Summary Field Name Type Description Frequency MHz Numeric The frequency in MHz that this page describes. Frequency Lower MHz Numeric Lower edge of the spectrum range (MHz). Frequency Upper MHz Numeric Upper edge of the spectrum range (MHz). Band Name Text Human-friendly band label for the allocation. Spectrum Block Text Category/block of spectrum (e.g., VHF, UHF, ISM). Quick Summary Text Short summary of the allocation use. Primary Use Text Principal application(s) of this band. Common Applications Text Examples of applications/devices. Technology Text Technology types common in the band. Did You Know Text Trivia / quick facts block. Additional Notes Text Extra notes not elsewhere classified. Data Source Text Reference or citation (regulatory or standard).
📡 Band & Identity Field Name Type Description Band Name Text Official spectrum name. Popular Name Text Alternate common name for the band. Spectrum Block Text Spectrum group/category. Frequency Lower MHz Numeric Lower boundary of band. Frequency Upper MHz Numeric Upper boundary of band. Allocation Status Text Whether the spectrum is allocated/active/etc. Exclusive / Shared Text Whether this band is exclusive or shared. Protected Services Text Services that are protected from interference. Related Frequencies Text Nearby frequency ranges for navigation.
📜 FCC Rules & Licensing Field Name Type Description FCC Service Type Text Primary FCC service category. FCC Secondary Services Text Secondary services allowed/recognized. FCC Part Number Text FCC rule part (e.g., Part 15, Part 97). FCC Rule Section Text Specific CFR section reference. License Required Text Whether license is required. License Type Text Type of license required. License Fee Type Text Fee model (annual, one-time). Annual Regulatory Fee Boolean Whether an annual fee applies. License Term Years Numeric Typical license duration (if applicable). Renewal Expectancy Text Renewal prospects (e.g., high/low). Auction History Text History of auction assignments or no auctions. Refarming Status Text Whether it is subject to refarming. Geographic Restrictions Text Any location-based restrictions. Quiet Zones Text Quiet zone / exclusion zone info. Coordination Required Text Whether frequency coordination is required. Warning Notices Text Regulatory warnings or notices.
⚙️ RF & Technical Field Name Type Description Technology Text Technology protocols or waveforms. Modulation Text Common modulation types. Typical Bandwidth Text Typical channel bandwidth(s). Transmitter Type Text Typical transmitter equipment. Receiver Type Text Typical receiver equipment. Typical Power (W) Text Usual power levels (watts). Maximum Power Limit Text Legal power limit per rules. ERP Limit Text Effective radiated power limits. Antenna Height Limits Text Any antenna height constraints. Antenna (Quarter-Wave) Text Quarter-wave antenna length for this band (added). Duplex Mode Text Whether duplexing applies. Paired Frequency Text Paired Rx/Tx frequency if relevant. Channelization Text Channel plan or raster spacing. Guard Bands (kHz) Text Guard band spacing. Emission Designator Text Regulatory emission designators. Emission Mask Text Emission mask requirements. Part 15 Device Limits Text FCC Part 15 rules if relevant. Spread Spectrum Allowed Boolean Whether spread spectrum is permitted. Frequency Hopping Allowed Boolean Whether FHSS is allowed. Power Control Required Boolean Power control requirements.
🌤️ Propagation Field Name Type Description Propagation Mode Text Dominant propagation mechanism (groundwave, skywave, etc.). Typical Range (Miles) Text Typical real-world coverage. Day vs Night Differences Text Day/night propagation differences. Atmospheric Effects Text Seasonal/atmospheric influences on range.
🛡️ Ecosystem Field Name Type Description Primary Use Text Primary real-world use. Common Applications Text Common usage scenarios. Can You Listen Text Monitoring legality/practical details. Encryption Status Text Notes on encryption status. Popular Radio Models Text Common equipment that can operate/monitor. License Holders Text Who commonly holds license (operators, ships). Major Operators Text Key operator types. Government Use Boolean Government use indicator. Military Use Boolean Military use indicator. Public Safety Boolean Public safety service indicator. Critical Infrastructure Boolean Infrastructure use indicator. Amateur Radio Boolean Amateur radio relevance. ISM Band Boolean Whether it overlaps ISM band usage. Unlicensed Operation Boolean Whether unlicensed use is permitted. Consumer Equipment Boolean Whether consumer gear exists. Common Devices Text Typical hardware/devices used. Receive Only Boolean Whether the service may be receive-only. Radio Astronomy Boolean Whether radio astronomy exists here. Satellite Downlink Boolean Whether satellite downlinks exist here. Passive Service Boolean Passive sensing use if present. Spectrum Occupancy Estimated Text Estimated utilization of the band. Urban vs Rural Text Where usage tends to be (urban/rural). Deployment Density Text Typical equipment deployment density.
🌎 International Field Name Type Description ITU Region 2 Allocation Text ITU Region 2 (Americas) label. International Harmonization Text Whether this allocation matches global patterns. Cross-Border Coordination Text Requirement for cross-border coordination. Year Allocated Numeric Historical start year of this allocation. Legacy Uses Text Historical context/use still relevant. Future Plans Text Planned or expected future usage.
🧾 Compliance Field Name Type Description FCC Certification Required Boolean Whether FCC equipment certification is required. Equipment Authorization Type Text Type of authorization mechanism (SDoC, certification). FCC ID Required Boolean Whether an FCC ID is necessary. Compliance Testing Text Compliance test requirements summary.
