MESHNOLOGY — Freq / Airtime Calc

LoRa PARAMETERS

REGION SPREADING FACTOR (SF) BANDWIDTH CODING RATE PAYLOAD SIZE (bytes) PREAMBLE LENGTH (symbols) EXPLICIT HEADER LOW DATA RATE OPTIMISE

—

ms TIME ON AIR

per packet transmission

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bps BITRATE

—

SYMBOLS/PKT

—

ms/SYMBOL

DUTY CYCLE

1% DUTY CYCLE — max pkts/hour—

10% DUTY CYCLE — max pkts/hour—

EU 868: 1% duty cycle applies to most sub-bands. 10% on 868.0–868.6 MHz.
US 915: No duty cycle restriction (FCC Part 15 FHSS).

REGIONAL FREQUENCY REFERENCE

CHANNEL	FREQ (MHz)	BW (kHz)	MAX TX	DUTY