{
    "meta": {
        "title": "D-Central — Meshtastic Regional Parameters & Channel Presets",
        "description": "28 records: Meshtastic LoRa regional parameters (frequency range, power cap, slots, duty cycle) and the modem-preset table (spreading factor, coding rate, bandwidth, data rate, airtime). Canada uses the US region; ISED RSS-247 applies.",
        "generated": "2026-06-19T03:30:17+00:00",
        "version": "1.0",
        "license": "https://creativecommons.org/licenses/by/4.0/",
        "license_name": "CC BY 4.0",
        "source": "https://d-central.tech/meshtastic-lora-regions/",
        "record_count": 28,
        "disclaimer": "Regulatory values summarise public Meshtastic + ISED documentation as of June 2026. Region power caps are region defaults, not device EIRP. Confirm current regulations before transmitting; not legal advice."
    },
    "rows": [
        {
            "kind": "region",
            "id": "US",
            "region_name": "United States (also used for Canada)",
            "freq_start_mhz": 902,
            "freq_end_mhz": 928,
            "num_slots": 104,
            "max_power_dbm": 30,
            "duty_cycle_pct": 100,
            "notes": "902-928 MHz licence-exempt ISM band. Meshtastic in Canada uses the US region. Canada licence-exempt operation in this band is governed by ISED RSS-247 (Issue 4, 2025) for digital transmission / frequency-hopping systems; 1 W (30 dBm) max conducted power. Region default power cap shown is Meshtastic's, expressed as ERP; device EIRP is NOT published here per scope. 104 frequency slots are for the default LongFast preset (250 kHz BW); slot count varies with bandwidth.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/ ; https://ised-isde.canada.ca/site/spectrum-management-telecommunications/en/devices-and-equipment/radio-equipment-standards/radio-standards-specifications-rss/rss-247-digital-transmission-systems-dtss-frequency-hopping-systems-fhss-and-licence-exempt-local"
        },
        {
            "kind": "region",
            "id": "EU_433",
            "region_name": "European Union 433 MHz",
            "freq_start_mhz": 433,
            "freq_end_mhz": 434,
            "num_slots": 4,
            "max_power_dbm": 12,
            "duty_cycle_pct": 10,
            "notes": "+10 dBm ERP commonly cited for EU 433; Meshtastic region table lists 12 dBm cap. 4 frequency slots with default LongFast preset; factory default is slot 4 (center 433.875 MHz). 10% hourly duty cycle, rolling 1-hour basis.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "EU_868",
            "region_name": "European Union 868 MHz",
            "freq_start_mhz": 869.3999999999999772626324556767940521240234375,
            "freq_end_mhz": 869.6499999999999772626324556767940521240234375,
            "num_slots": 1,
            "max_power_dbm": 27,
            "duty_cycle_pct": 10,
            "notes": "Uses the narrow 869.40-869.65 MHz sub-band (not the full 863-870 SRD band) to allow higher ERP and 10% duty cycle. 1 frequency slot with default LongFast preset; factory default slot 1 (center 869.525 MHz). 10% rolling hourly duty cycle.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "CN",
            "region_name": "China",
            "freq_start_mhz": 470,
            "freq_end_mhz": 510,
            "num_slots": null,
            "max_power_dbm": 19,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 19 dBm per Meshtastic region table. Slot count not stated in docs (depends on bandwidth).",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "JP",
            "region_name": "Japan",
            "freq_start_mhz": 920.799999999999954525264911353588104248046875,
            "freq_end_mhz": 927.799999999999954525264911353588104248046875,
            "num_slots": null,
            "max_power_dbm": 16,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 16 dBm per Meshtastic region table. Slot count not stated in docs.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "ANZ",
            "region_name": "Australia & New Zealand",
            "freq_start_mhz": 915,
            "freq_end_mhz": 928,
            "num_slots": null,
            "max_power_dbm": 30,
            "duty_cycle_pct": 100,
            "notes": "Default frequency slot #20 (center 919.875 MHz) with LongFast. Region default power cap 30 dBm per Meshtastic region table. Total slot count not explicitly stated for default preset.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "KR",
            "region_name": "Korea",
            "freq_start_mhz": 920,
            "freq_end_mhz": 923,
            "num_slots": null,
            "max_power_dbm": null,
            "duty_cycle_pct": 100,
            "notes": "Meshtastic region table did not list an explicit power cap value (shown as blank/dash); slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "TW",
            "region_name": "Taiwan",
            "freq_start_mhz": 920,
            "freq_end_mhz": 925,
            "num_slots": null,
            "max_power_dbm": 27,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 27 dBm per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "RU",
            "region_name": "Russia",
            "freq_start_mhz": 868.700000000000045474735088646411895751953125,
            "freq_end_mhz": 869.200000000000045474735088646411895751953125,
            "num_slots": null,
            "max_power_dbm": 20,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 20 dBm per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "IN",
            "region_name": "India",
            "freq_start_mhz": 865,
            "freq_end_mhz": 867,
            "num_slots": null,
            "max_power_dbm": 30,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 30 dBm per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "NZ_865",
            "region_name": "New Zealand 865 MHz",
            "freq_start_mhz": 864,
            "freq_end_mhz": 868,
            "num_slots": null,
            "max_power_dbm": 36,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 36 dBm per Meshtastic region table (highest of the table). Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "TH",
            "region_name": "Thailand",
            "freq_start_mhz": 920,
            "freq_end_mhz": 925,
            "num_slots": null,
            "max_power_dbm": 16,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 16 dBm per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "UA_433",
            "region_name": "Ukraine 433 MHz",
            "freq_start_mhz": 433,
            "freq_end_mhz": 434.69999999999998863131622783839702606201171875,
            "num_slots": null,
            "max_power_dbm": 10,
            "duty_cycle_pct": 10,
            "notes": "Region default power cap 10 dBm, 10% duty cycle per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "UA_868",
            "region_name": "Ukraine 868 MHz",
            "freq_start_mhz": 868,
            "freq_end_mhz": 868.6000000000000227373675443232059478759765625,
            "num_slots": null,
            "max_power_dbm": 14,
            "duty_cycle_pct": 1,
            "notes": "Region default power cap 14 dBm, 1% duty cycle per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "MY_433",
            "region_name": "Malaysia 433 MHz",
            "freq_start_mhz": 433,
            "freq_end_mhz": 435,
            "num_slots": null,
            "max_power_dbm": 20,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 20 dBm per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "MY_919",
            "region_name": "Malaysia 919 MHz",
            "freq_start_mhz": 919,
            "freq_end_mhz": 924,
            "num_slots": null,
            "max_power_dbm": 27,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 27 dBm per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "SG_923",
            "region_name": "Singapore 923 MHz",
            "freq_start_mhz": 917,
            "freq_end_mhz": 925,
            "num_slots": null,
            "max_power_dbm": 20,
            "duty_cycle_pct": 100,
            "notes": "Region default power cap 20 dBm per Meshtastic region table. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/"
        },
        {
            "kind": "region",
            "id": "LORA_24",
            "region_name": "2.4 GHz band (worldwide)",
            "freq_start_mhz": 2400,
            "freq_end_mhz": 2483.5,
            "num_slots": null,
            "max_power_dbm": 10,
            "duty_cycle_pct": 100,
            "notes": "Worldwide 2.4 GHz band for LoRa 2.4 GHz radios (e.g. SX128x). Region default power cap 10 dBm per Meshtastic region table. In Canada the 2400-2483.5 MHz band is also covered under ISED RSS-247. Slot count not stated.",
            "source": "https://meshtastic.org/docs/configuration/radio/lora/ ; https://ised-isde.canada.ca/site/spectrum-management-telecommunications/en/devices-and-equipment/radio-equipment-standards/radio-standards-specifications-rss/rss-247-digital-transmission-systems-dtss-frequency-hopping-systems-fhss-and-licence-exempt-local"
        },
        {
            "kind": "preset",
            "id": "short_turbo",
            "preset_name": "Short Turbo",
            "spreading_factor": 7,
            "coding_rate": "4/5",
            "bandwidth_khz": 500,
            "data_rate_bps": 21880,
            "relative_airtime": "Fastest / shortest range (baseline ~1x airtime, fastest throughput)",
            "notes": "Fastest preset and the only 500 kHz preset; 500 kHz bandwidth is not legal in all regions. Data rate ~21.88 kbps. Link budget ~140 dB (docs assume 22 dBm TX, 0 dB antenna gain).",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "short_fast",
            "preset_name": "Short Fast",
            "spreading_factor": 7,
            "coding_rate": "4/5",
            "bandwidth_khz": 250,
            "data_rate_bps": 10940,
            "relative_airtime": "Very fast / short range",
            "notes": "Data rate ~10.94 kbps. Link budget ~143 dB (22 dBm TX, 0 dB gain).",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "short_slow",
            "preset_name": "Short Slow",
            "spreading_factor": 8,
            "coding_rate": "4/5",
            "bandwidth_khz": 250,
            "data_rate_bps": 6250,
            "relative_airtime": "Fast / short-medium range",
            "notes": "Data rate ~6.25 kbps. Link budget ~145.5 dB (22 dBm TX, 0 dB gain).",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "medium_fast",
            "preset_name": "Medium Fast",
            "spreading_factor": 9,
            "coding_rate": "4/5",
            "bandwidth_khz": 250,
            "data_rate_bps": 3520,
            "relative_airtime": "Medium speed / medium range",
            "notes": "Data rate ~3.52 kbps. Link budget ~148 dB (22 dBm TX, 0 dB gain).",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "medium_slow",
            "preset_name": "Medium Slow",
            "spreading_factor": 10,
            "coding_rate": "4/5",
            "bandwidth_khz": 250,
            "data_rate_bps": 1950,
            "relative_airtime": "Medium-slow / medium-long range",
            "notes": "Data rate ~1.95 kbps. Link budget ~150.5 dB (22 dBm TX, 0 dB gain).",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "long_fast",
            "preset_name": "Long Fast (default)",
            "spreading_factor": 11,
            "coding_rate": "4/5",
            "bandwidth_khz": 250,
            "data_rate_bps": 1070,
            "relative_airtime": "Default preset; balanced range vs. airtime (longer airtime per packet than the Short/Medium presets)",
            "notes": "Meshtastic default / standard preset. Data rate ~1.07 kbps. Link budget ~153 dB (22 dBm TX, 0 dB gain). For US region this preset yields 104 frequency slots.",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "long_turbo",
            "preset_name": "Long Turbo",
            "spreading_factor": 11,
            "coding_rate": "4/8",
            "bandwidth_khz": 500,
            "data_rate_bps": 1340,
            "relative_airtime": "Long range with wider 500 kHz bandwidth (not legal in all regions)",
            "notes": "Newer preset. 500 kHz bandwidth not permitted in every region. Data rate ~1.34 kbps. Link budget ~150 dB (22 dBm TX, 0 dB gain).",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "long_moderate",
            "preset_name": "Long Moderate",
            "spreading_factor": 11,
            "coding_rate": "4/8",
            "bandwidth_khz": 125,
            "data_rate_bps": 340,
            "relative_airtime": "Long range / high airtime per packet",
            "notes": "Data rate ~0.34 kbps. Link budget ~156 dB (22 dBm TX, 0 dB gain).",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "long_slow",
            "preset_name": "Long Slow (deprecated)",
            "spreading_factor": 12,
            "coding_rate": "4/8",
            "bandwidth_khz": 125,
            "data_rate_bps": 180,
            "relative_airtime": "Longest range / longest airtime per packet (highest channel-utilization cost)",
            "notes": "Marked deprecated in current Meshtastic docs. Data rate ~0.18 kbps. Link budget ~158.5 dB (22 dBm TX, 0 dB gain), the highest link budget / longest theoretical range of the listed presets.",
            "source": "https://deepwiki.com/meshtastic/meshtastic/3.1-radio-settings-and-lora-configuration ; https://meshtastic.org/docs/overview/radio-settings/"
        },
        {
            "kind": "preset",
            "id": "very_long_slow",
            "preset_name": "Very Long Slow (removed/deprecated)",
            "spreading_factor": null,
            "coding_rate": null,
            "bandwidth_khz": null,
            "data_rate_bps": null,
            "relative_airtime": "Historically the slowest / longest-range preset",
            "notes": "VERY_LONG_SLOW existed in earlier Meshtastic firmware as the slowest preset (historically SF12 / 31.25 kHz BW) but has been removed/deprecated; current Meshtastic Radio Settings docs no longer publish its SF/CR/BW/data-rate values, so all numeric fields are null pending a primary firmware citation. Included for enum completeness only.",
            "source": "https://meshtastic.org/docs/overview/radio-settings/ ; https://docs.rs/meshtastic_protobufs/latest/meshtastic_protobufs/meshtastic/config/lo_ra_config/enum.ModemPreset.html"
        }
    ]
}