Digital voice DV over LoRa

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sh123 edited this page Oct 20, 2021 · 13 revisions

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This modem could be used in conjunction with Android Codec2 Walkie-Talkie, when application connects to the modem, instead of sending AX25 APRS packets it sends Codec2 speech encoded frames. This enables digital voice communication between one or multiple modems.
Power on the modem from power bank, computer USB port or phone USB OTG port
Go to application settings into KISS section and "Enable Extensions"

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Select appropriate LoRa modem settings, such as frequency, bandwidth, spread factor

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Select codec2 mode

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Make sure your RF speed is larger than Codec2 mode speed

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Alternatively, all LoRa options could be set to default values in config.h, so they will be set immediately after reboot