Frequency
49 MHz
Range
30β50 MHz
Band Group
VHF (30β300 MHz)
π Summary
49 MHz: Public safety, utilities, legacy FM narrowband; Handheld radios, vehicle radios, dispatch equipment
Part 15 devices/baby monitors/toys commonly use 49.82β49.90 MHz; legacy 49 MHz cordless phones overlapped these channels.

π Explore the full RF Spectrum database
π‘ Band & Geometry key
Field | Value |
---|---|
Wavelength (m) | 6.122 |
Waveforms | – |
Antenna Form Factor (Typical) | ΒΌ-wave β 153 cm |
Band Family | LMR/Public Safety |
Band | Land mobile / Fixed (VHF low) |
Primary Common Name | Land mobile / Fixed (VHF low) |
FSPL @ 1 km [dB] | 66.24392160057 |
FSPL @ 10 km [dB] | 86.24392160057 |
Fresnel Radius @ 1 km (m) | 39.121892195797 |
Band Group | VHF (30β300 MHz) |
Tax Band Family | VHF |
Tax Band Class | VHF Low (30β88) |
π§© Applications & Usage
Field | Value |
---|---|
Primary Application | – |
Lower Neighbor Use | HF / MF Band |
Upper Neighbor Use | 6 m Amateur Band |
Typical Services Devices | Public safety, utilities, legacy FM narrowband |
Market Common Devices | Handheld radios, vehicle radios, dispatch equipment |
Refarming Use | No |
Device Ecosystem Size | Medium |
Device Hotspots (MHz) | 49 |
Device Category | Land Mobile Radios |
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) | LowβModerate |
Example Devices Or Skus | VHF Land Mobile Radio |
Common Protocols | Analog FM (12.5 kHz); DMR; P25 (region); TETRA (region) |
ποΈ Notes
Field | Value |
---|---|
Receiver Selectivity Notes | β₯60 dB @ Β±12.5 kHz |
Interference Notes | Refarming underway in some regions; mixed channelization |
Compatibility Risk Notes | – |
Notes | Part 15 devices/baby monitors/toys commonly use 49.82β49.90 MHz; legacy 49 MHz cordless phones overlapped these channels. |
Propagation Notes | Strong coverage, good indoor penetration |
βοΈ Technical Rules
Field | Value |
---|---|
Lower Band Frequency Limit | 30 |
Upper Band Frequency Limit | 50 |
EIRP Indoor Limits | N/A (licensed; verify national rules) |
EIRP Outdoor Limits | N/A (licensed; verify national rules) |
PSD Limit | β |
Emission Mask Class | LMR 12.5 kHz NB |
Guardband Minimum [kHz] | 12.5 |
Typical Bandwidths | 12.5, 25 kHz |
Autocalculated Bandlimits | No |
Typical Bandwidths (Estimated) | 12.5, 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 | Half-duplex |
Duplexing Information | Half-duplex: push-to-talk / single-frequency |
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 | – |
π Country Overrides
Field | Value |
---|---|
Post Status | publish |
Tax Service Category | Other / Various |
Tax License Type | Licensed / Service-Specific |
Tax Regions | Global / Varies |
ITU Region 1 | Land mobile, Fixed |
ITU Region 2 | Land mobile, Fixed |
ITU Region 3 | Land mobile, Fixed |
License Type | Land mobile / Fixed service (licensed, often public safety/commercial) |
Primary Application | – |
Primary Services | – |
Spurious Emission [dBm] | -30 (baseline) |
Lower Neighbor Use | HF / MF Band |
Upper Neighbor Use | 6 m Amateur Band |
Licensing Model | Licensed (Land mobile / VHF Low) |
Typical Services Devices | Public safety, utilities, legacy FM narrowband |
US FCC Alloc | -β |
CA IC Alloc | -β |
UK Ofcom Alloc | -β |
US Ref | – |
Typical Bandwidths | 12.5, 25 kHz |
Market Licensing Model | Government / Public Safety |
Market Common Devices | Handheld radios, vehicle radios, dispatch equipment |
Fresnel Radius (1st, 1 km) [m] | 39.121892195797 |
Typical Bandwidths (Estimated) | 12.5, 25 kHz |
Auction Status | Assigned |
Refarming Use | No |
Typical Site Spacing km | 5 / 30 |
Device Ecosystem Size | Medium |
Traffic Load Share | Coverage-heavy, low capacity share |
Device Hotspots (MHz) | 49 |
Device Category | Land Mobile Radios |
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) | LowβModerate |
Example Devices Or Skus | VHF Land Mobile Radio |
Antenna Form Factor (Typical) | ΒΌ-wave β 153 cm |
Power Source Or Duty Profile (Typical) | – |
π‘οΈ Regulatory & Neighbors
Field | Value |
---|---|
Lower Band Frequency Limit | 30 |
Upper Band Frequency Limit | 50 |
Rx Blocking Min dBm | -15 (planning) |
Lower Neighbor Use | HF / MF Band |
Upper Neighbor Use | 6 m Amateur Band |
Lower Neighbor Band | HF / MF Band |
Lower Neighbor Range | 28.000β30.000 MHz |
Upper Neighbor Label | 6 m Amateur Band |
Upper Neighbor Range | 50.000β54.000 MHz |
Adjacent-Band Collision Risks (Device) | LowβModerate |
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 | – |
Auction Status | Assigned |
Guard Or Pair | – |
π Market & Measurements
Field | Value |
---|---|
Noise Floor | -105 dBm (est.) |
Interference Cases | – |
Lower Neighbor Range | 28.000β30.000 MHz |
Upper Neighbor Range | 50.000β54.000 MHz |
Interference Notes | Refarming underway in some regions; mixed channelization |
Market Licensing Model | Government / Public Safety |
Market Commercial Value | Low |
Market Common Devices | Handheld radios, vehicle radios, dispatch equipment |
Market Deployment Density | Medium |
Noise Floor (Estimated) | -105 dBm (est.) |
Market Commercial Value (Estimated) | Low |
Ecosystem Maturity | Established |
Indoor Penetration | Good |
Known Interference | No major interference issues noted |
Device Ecosystem Size | Medium |
Real-World Range (Indoor/Outdoor) | – |
Antenna Form Factor (Typical) | ΒΌ-wave β 153 cm |
Ecosystem Maturity | Established |
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 | 10β30% |
Latency Profile | – |
Common Channels Or Profiles | – |
Security Features | – |
Lbt Or Fhss Requirement | – |
Popularity (Installed Base) | – |
Coexistence Tips | – |
Latency Class | – |
Device Hotspots (Scoped && Tagged) | β |