863 MHz – Frequency Band & Applications

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Frequency
863 MHz
🧭

Range
851–869 MHz
🧩

Band Group
UHF (300–1000 MHz)

🌐 Summary

The 863 MHz allocation is part of the UHF (300–1000 MHz) spectrum. This range is used worldwide for critical applications that keep our communications and infrastructure running smoothly. On this page we highlight how each band is applied in real systems, from regulatory assignments to everyday devices. Our goal is to make spectrum data clear and practical for engineers, regulators, and enthusiasts alike.

Key uses of this band include: 863 MHz: Public Safety and Specialized Mobile Radio (SMR) downlink paired with 806–824 MHz uplink; Mobile, Fixed; Narrowband/Trunked LMR downlinks; LTE/NR smartphones, legacy GSM/CDMA devices; LPWAN sensors/meters/trackers.

800 MHz public safety/SMR base transmit (851–869 MHz): trunked P25/DMR/SMR systems; outcomes of 800‑MHz rebanding reflected here.

800/850 MHz Cellular & SMR (806–896) (Mobitex)
800/850 MHz Cellular & SMR (806–896) Overview

πŸ” Explore the full RF Spectrum database

πŸ“‘ Band & Geometry key

Field Value
Wavelength (m) 0.348
Waveforms Analog/digital PMR, P25, TETRA, LTE, 5G NR
Antenna Form Factor (Typical) ΒΌ-wave β‰ˆ 8.69 cm
Band Family LMR/Public Safety
Band 800 MHz Public Safety / SMR β€” Downlink
Primary Common Name Public Safety / SMR DL
FSPL @ 1 km [dB] 91.160215914304
FSPL @ 10 km [dB] 111.1602159143
Fresnel Radius @ 1 km (m) 9.3220728850238
Band Group UHF (300–1000 MHz)
Tax Band Family UHF
Tax Band Class 800/850 MHz Cellular & SMR (806–896) Band

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🧩 Applications & Usage

Field Value
Primary Application Public Safety and Specialized Mobile Radio (SMR) downlink paired with 806–824 MHz uplink
Lower Neighbor Use No adjacent allocation defined
Upper Neighbor Use Cellular 850 (CLR) β€” Downlink
Typical Services Devices Narrowband/Trunked LMR downlinks
Market Common Devices LTE/NR smartphones, legacy GSM/CDMA devices
Refarming Use No
Device Ecosystem Size Medium (100–1000 models)
Device Hotspots (MHz) 868.1/868.3/868.5
Device Category LoRa / LoRaWAN
Typical Use Cases LPWAN sensors/meters/trackers
Modulation (Device) LoRa (CSS)
Channel Width (Device) [kHz] 125–500
Device Region Profiles EU: 868; US: 902–928; AU/NZ: 915–928; AS923 variants
Per-Region EIRP Or Duty (Device) EU ≀14 dBm; US up to 30 dBm class (gateway)
Allocation Relevance (Device) ISM LPWAN allocations
Adjacent-Band Collision Risks (Device) 915 MHz overlaps Z-Wave/RFID/smart meters
Example Devices Or Skus Cellular (2G/3G Legacy Devices)
Common Protocols LoRa (868 MHz); Sigfox (regional); Short-Range Devices (SRD); wM-Bus (868 MHz); LTE; 5G NR; GSM/EDGE; UMTS (legacy); Analog FM (12.5 kHz); DMR; P25 (region); TETRA (region)

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πŸ—’οΈ Notes

Field Value
Receiver Selectivity Notes
Interference Notes Adjacent cellular downlinks; filtering needed
Compatibility Risk Notes
Notes 800 MHz public safety/SMR base transmit (851–869 MHz): trunked P25/DMR/SMR systems; outcomes of 800‑MHz rebanding reflected here.
Propagation Notes Strong coverage, good indoor penetration

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βš™οΈ Technical Rules

Field Value
Lower Band Frequency Limit 851
Upper Band Frequency Limit 869
EIRP Indoor Limits Base stations per license
EIRP Outdoor Limits Base EIRP per license (high)
PSD Limit β€”
Emission Mask Class LMR/SMR trunked
Guardband Minimum [kHz] 12.5
Typical Bandwidths 5, 10, 20 MHz
Autocalculated Bandlimits No
Typical Bandwidths (Estimated) 5, 10, 20 MHz
Max EIRP [dBm] EU ≀14 dBm; US up to 30 dBm class (gateway)
Power Source Or Duty Profile (Typical) Battery sensors; mains gateways
Channelization Plan 5, 10, 20 MHz
Channelization 25 kHz (legacy); 12.5 kHz narrowband; LTE/NR blocks
Guard Band Requirement
OOB Emission Limit [dBm/MHz] -13 (baseline)
Spurious Emission Limit (dBm) -30 (baseline)
RX Blocking Min [dBm] -15 (planning)
Duplexing FDD
Duplexing Information FDD: 806–824 MHz (PS/SMR UL) uplink / 851–869 MHz (PS/SMR DL) downlink
Uplink Pairing 806–824 MHz (PS/SMR UL)
Downlink Pairing 851–869 MHz (PS/SMR DL)
Paired Band Info
Max EIRP [dBm]
Channelization Block Size
3GPP Band Number
Example 3GPP Bands
LTE Uplink Bands
LTE Downlink Bands Band 26
NR Uplink Bands
NR Downlink Bands n26
Guard Bands
Protocol Or Standard LoRaWAN

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🌎 Country Overrides

Field Value
Tax Service Category Other / Various
Tax License Type Licensed / Service-Specific
Tax Regions Global / Varies
ITU Region 1 (Europe, Africa, Middle East (west of Persian Gulf), Western Russia & Mongolia) Mobile, Fixed
ITU Region 2 (North America, South America, Central America, Caribbean, Greenland, Eastern Pacific Islands (Americas region)) Mobile, Fixed
ITU Region 3 (Asia, Australia, Pacific Islands, Oceania, Indian Subcontinent, East Asia & Southeast Asia) Mobile, Fixed
License Type Licensed public safety / SMR
Primary Application Public Safety and Specialized Mobile Radio (SMR) downlink paired with 806–824 MHz uplink
Primary Services Mobile, Fixed
Spurious Emission [dBm] -30 (baseline)
Lower Neighbor Use No adjacent allocation defined
Upper Neighbor Use Cellular 850 (CLR) β€” Downlink
Licensing Model Licensed (Public safety / LMR)
Typical Services Devices Narrowband/Trunked LMR downlinks
US FCC Alloc Public Safety / LMR (Downlink)–

CA IC Alloc Public Safety / LMR (Downlink)–

UK Ofcom Alloc LMR (regional)–

US Ref 47 CFR Part 90 (Private Land Mobile)
Typical Bandwidths 5, 10, 20 MHz
Market Licensing Model Auctioned (IMT)
Market Common Devices LTE/NR smartphones, legacy GSM/CDMA devices
Fresnel Radius (1st, 1 km) [m] 9.3220728850238
Typical Bandwidths (Estimated) 5, 10, 20 MHz
Auction Status
Refarming Use No
Typical Site Spacing km 2 / 8
Device Ecosystem Size Medium (100–1000 models)
Traffic Load Share Coverage-heavy, low capacity share
Device Hotspots (MHz) 868.1/868.3/868.5
Device Category LoRa / LoRaWAN
Typical Use Cases LPWAN sensors/meters/trackers
Typical Center Frequencies [MHz] EU 868 (125 kHz); US 915 (125/500 kHz); EU 433
Rule Part (Fcc Or Region) FCC Part 15.247; ETSI EN 300 220
Modulation (Device) LoRa (CSS)
Channel Width (Device) [kHz] 125–500
Device Region Profiles EU: 868; US: 902–928; AU/NZ: 915–928; AS923 variants
Per-Region EIRP Or Duty (Device) EU ≀14 dBm; US up to 30 dBm class (gateway)
Allocation Relevance (Device) ISM LPWAN allocations
Adjacent-Band Collision Risks (Device) 915 MHz overlaps Z-Wave/RFID/smart meters
Example Devices Or Skus Cellular (2G/3G Legacy Devices)
Antenna Form Factor (Typical) ΒΌ-wave β‰ˆ 8.69 cm
Power Source Or Duty Profile (Typical) Battery sensors; mains gateways

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πŸ›‘οΈ Regulatory & Neighbors

Field Value
Lower Band Frequency Limit 851
Upper Band Frequency Limit 869
Rx Blocking Min dBm -15 (planning)
Lower Neighbor Use No adjacent allocation defined
Upper Neighbor Use Cellular 850 (CLR) β€” Downlink
Lower Neighbor Band Cellular 850 (CLR) β€” Uplink (segment)
Lower Neighbor Range 836.000–849.000 MHz
Upper Neighbor Label Cellular 850 (CLR) β€” Downlink
Upper Neighbor Range 870.000–894.000 MHz
Adjacent-Band Collision Risks (Device) 915 MHz overlaps Z-Wave/RFID/smart meters
Real-World Range (Indoor/Outdoor) Urban 1–3 km; Suburban 2–10 km; Rural 10–20+ km
US FCC Alloc Public Safety / LMR (Downlink)Public Safety / LMR (Downlink)

CA IC Alloc Public Safety / LMR (Downlink)Public Safety / LMR (Downlink)

UK Ofcom Alloc LMR (regional)LMR (regional)

Regulatory References US: 47 CFR Part 90 (Private Land Mobile); CA: ISED RSS‑119 (Land Mobile 27.41–960 MHz); UK: Ofcom PMR/Business Radio (UK FAT)
Global Harmonization Global
Crossborder Coordination High
Sharing Mechanism
Auction Status
Guard Or Pair

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πŸ“ˆ Market & Measurements

Field Value
Noise Floor -110 dBm (est.)
Interference Cases
Lower Neighbor Range 836.000–849.000 MHz
Upper Neighbor Range 870.000–894.000 MHz
Interference Notes Adjacent cellular downlinks; filtering needed
Market Licensing Model Auctioned (IMT)
Market Commercial Value High-value IMT band
Market Common Devices LTE/NR smartphones, legacy GSM/CDMA devices
Market Deployment Density Dense urban, broad rural coverage
Noise Floor (Estimated) -110 dBm (est.)
Market Commercial Value (Estimated) High-value IMT band
Ecosystem Maturity Emerging
Indoor Penetration Good
Known Interference No major interference issues noted
Device Ecosystem Size Medium (100–1000 models)
Real-World Range (Indoor/Outdoor) Urban 1–3 km; Suburban 2–10 km; Rural 10–20+ km
Antenna Form Factor (Typical) ΒΌ-wave β‰ˆ 8.69 cm
Ecosystem Maturity Emerging
Device Ecosystem Size Medium (100–1000 models)
Chipset Availability Specialized vendors (Motorola, Airbus)
Operator Deployments Regional/national public safety agencies
Technology Generations Deployed LMR / TETRA digital voice
Roaming Support No
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 EU868: 863–870; US915: 902–928; EU433: 433.05–434.79
Security Features AES-128 network/app keys
Lbt Or Fhss Requirement EU: LBT/duty-cycle; US: hopping/dwell
Popularity (Installed Base) High
Coexistence Tips Use sub-band plans; ADR; avoid continuous beacons
Latency Class Not critical / ALOHA
Device Hotspots (Scoped && Tagged) –

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