📡
Frequency
61 MHz
Frequency
61 MHz
🧭
Range
54–72 MHz
Range
54–72 MHz
🧩
Band Group
VHF (30–300 MHz)
Band Group
VHF (30–300 MHz)
🌐 Summary
61 MHz: VHF TV low (legacy, varies by region); Television receivers
Within TV Channel 3 (legacy VHF‑Low).
🔍 Explore the full RF Spectrum database
📡 Band & Geometry key
| Field | Value |
|---|---|
| Wavelength (m) | 4.918 |
| Waveforms | – |
| Antenna Form Factor (Typical) | ¼-wave ≈ 123 cm |
| Band Family | Broadcast |
| Band | Broadcasting (legacy TV) |
| Primary Common Name | Broadcasting (legacy TV) |
| FSPL @ 1 km [dB] | 68.146596700215 |
| FSPL @ 10 km [dB] | 88.146596700215 |
| Fresnel Radius @ 1 km (m) | 35.063315096747 |
| Band Group | VHF (30–300 MHz) |
| Tax Band Family | VHF |
| Tax Band Class | VHF Low (30–88) |
🧩 Applications & Usage
| Field | Value |
|---|---|
| Primary Application | – |
| Lower Neighbor Use | 6 m Amateur Band |
| Upper Neighbor Use | Fixed and Mobile (RC/telemetry use) |
| Typical Services Devices | VHF TV low (legacy, varies by region) |
| Market Common Devices | Television receivers |
| Refarming Use | No |
| Device Ecosystem Size | Medium |
| Device Hotspots (MHz) | 61 |
| Device Category | Specialized Industrial / Scientific Equipment |
| Typical Use Cases | – |
| Modulation (Device) | Varies by device |
| Channel Width (Device) [kHz] | Varies |
| Device Region Profiles | Varies by country / allocation |
| Per-Region EIRP Or Duty (Device) | Varies by regulation |
| Allocation Relevance (Device) | Medium |
| Adjacent-Band Collision Risks (Device) | Low–Moderate |
| Example Devices Or Skus | Specialized Industrial / Scientific Equipment |
| Common Protocols | Digital Terrestrial TV (ATSC/DVB-T) |
🗒️ Notes
| Field | Value |
|---|---|
| Receiver Selectivity Notes | – |
| Interference Notes | Interference risk to nearby services; many regions re-farmed |
| Compatibility Risk Notes | – |
| Notes | Within TV Channel 3 (legacy VHF‑Low). |
| Propagation Notes | Strong coverage, good indoor penetration |
⚙️ Technical Rules
| Field | Value |
|---|---|
| Lower Band Frequency Limit | 54 |
| Upper Band Frequency Limit | 72 |
| EIRP Indoor Limits | – |
| EIRP Outdoor Limits | High‑power broadcast |
| PSD Limit | — |
| Emission Mask Class | Broadcast TV VHF‑Low |
| Guardband Minimum [kHz] | 6000 |
| Typical Bandwidths | 25 kHz |
| Autocalculated Bandlimits | No |
| Typical Bandwidths (Estimated) | 25 kHz |
| Max EIRP [dBm] | Varies by regulation |
| Power Source Or Duty Profile (Typical) | – |
| Channelization Plan | – |
| Channelization | – |
| Guard Band Requirement | – |
| OOB Emission Limit [dBm/MHz] | -13 (baseline) |
| Spurious Emission Limit (dBm) | -30 (baseline) |
| RX Blocking Min [dBm] | -15 (planning) |
| Duplexing | Simplex |
| Duplexing Information | Simplex: downlink only |
| Uplink Pairing | – |
| Downlink Pairing | – |
| Paired Band Info | – |
| Max EIRP [dBm] | – |
| Channelization Block Size | – |
| 3GPP Band Number | |
| Example 3GPP Bands | – |
| LTE Uplink Bands | – |
| LTE Downlink Bands | – |
| NR Uplink Bands | – |
| NR Downlink Bands | – |
| Guard Bands | – |
| Protocol Or Standard | – |
🌎 Country Overrides
| Field | Value |
|---|---|
| Post Status | publish |
| Tax Service Category | Other / Various |
| Tax License Type | Licensed (Broadcast) |
| Tax Regions | Global / Varies |
| ITU Region 1 | Broadcasting |
| ITU Region 2 | Broadcasting |
| ITU Region 3 | Broadcasting |
| License Type | Broadcast service (licensed, national regulators) |
| Primary Application | – |
| Primary Services | – |
| Spurious Emission [dBm] | -30 (baseline) |
| Lower Neighbor Use | 6 m Amateur Band |
| Upper Neighbor Use | Fixed and Mobile (RC/telemetry use) |
| Licensing Model | Licensed (Broadcasting; regional) |
| Typical Services Devices | VHF TV low (legacy, varies by region) |
| US FCC Alloc | -– |
| CA IC Alloc | -– |
| UK Ofcom Alloc | -– |
| US Ref | – |
| Typical Bandwidths | 25 kHz |
| Market Licensing Model | Exclusive Licensed |
| Market Common Devices | Television receivers |
| Fresnel Radius (1st, 1 km) [m] | 35.063315096747 |
| Typical Bandwidths (Estimated) | 25 kHz |
| Auction Status | Auctioned |
| Refarming Use | No |
| Typical Site Spacing km | – / – |
| Device Ecosystem Size | Medium |
| Traffic Load Share | Coverage-heavy, low capacity share |
| Device Hotspots (MHz) | 61 |
| Device Category | Specialized Industrial / Scientific Equipment |
| Typical Use Cases | – |
| Typical Center Frequencies [MHz] | – |
| Rule Part (Fcc Or Region) | – |
| Modulation (Device) | Varies by device |
| Channel Width (Device) [kHz] | Varies |
| Device Region Profiles | Varies by country / allocation |
| Per-Region EIRP Or Duty (Device) | Varies by regulation |
| Allocation Relevance (Device) | Medium |
| Adjacent-Band Collision Risks (Device) | Low–Moderate |
| Example Devices Or Skus | Specialized Industrial / Scientific Equipment |
| Antenna Form Factor (Typical) | ¼-wave ≈ 123 cm |
| Power Source Or Duty Profile (Typical) | – |
🛡️ Regulatory & Neighbors
| Field | Value |
|---|---|
| Lower Band Frequency Limit | 54 |
| Upper Band Frequency Limit | 72 |
| Rx Blocking Min dBm | -15 (planning) |
| Lower Neighbor Use | 6 m Amateur Band |
| Upper Neighbor Use | Fixed and Mobile (RC/telemetry use) |
| Lower Neighbor Band | 6 m Amateur Band |
| Lower Neighbor Range | 50.000–54.000 MHz |
| Upper Neighbor Label | Fixed and Mobile (RC/telemetry use) |
| Upper Neighbor Range | 72.000–76.000 MHz |
| Adjacent-Band Collision Risks (Device) | Low–Moderate |
| Real-World Range (Indoor/Outdoor) | – |
| US FCC Alloc | — |
| CA IC Alloc | — |
| UK Ofcom Alloc | — |
| Regulatory References | US: -; CA: -; UK: – |
| Global Harmonization | Regional |
| Crossborder Coordination | High |
| Sharing Mechanism | Exclusive licensed |
| Auction Status | Auctioned |
| Guard Or Pair | – |
📈 Market & Measurements
| Field | Value |
|---|---|
| Noise Floor | -105 dBm (est.) |
| Interference Cases | – |
| Lower Neighbor Range | 50.000–54.000 MHz |
| Upper Neighbor Range | 72.000–76.000 MHz |
| Interference Notes | Interference risk to nearby services; many regions re-farmed |
| Market Licensing Model | Exclusive Licensed |
| Market Commercial Value | High |
| Market Common Devices | Television receivers |
| Market Deployment Density | High |
| Noise Floor (Estimated) | -105 dBm (est.) |
| Market Commercial Value (Estimated) | High |
| Ecosystem Maturity | Mature |
| Indoor Penetration | Good |
| Known Interference | No major interference issues noted |
| Device Ecosystem Size | Medium |
| Real-World Range (Indoor/Outdoor) | – |
| Antenna Form Factor (Typical) | ¼-wave ≈ 123 cm |
| Ecosystem Maturity | Mature |
| Device Ecosystem Size | Medium |
| Chipset Availability | Limited / TBD |
| Operator Deployments | Limited operators |
| Technology Generations Deployed | Multiple / TBD |
| Roaming Support | – |
| Traffic Load Share | Coverage-heavy, low capacity share |
| Indoor Penetration | Good |
| Known Interference | No major interference issues noted |
| Occupancy | Medium |
| Occupancy Bucket Pct | 10–30% |
| Latency Profile | – |
| Common Channels Or Profiles | – |
| Security Features | – |
| Lbt Or Fhss Requirement | – |
| Popularity (Installed Base) | – |
| Coexistence Tips | – |
| Latency Class | – |
| Device Hotspots (Scoped && Tagged) | – |