mayeranalytics / pySX127x

This is a python interface to the Semtech SX127x, HopeRF RFM9x, Microchip RN2483 long range, low power transceiver families.

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rssi value calculation

dimka-rs opened this issue · comments

Rssi is currently calculated as

return v - 157

which is correct for High Frequency only
See "5.5.5. RSSI and SNR in LoRa TM Mode" (page 87)

RSSI (dBm) = -157 + Rssi, (when using the High Frequency (HF) port)
or
RSSI (dBm) = -164 + Rssi, (when using the Low Frequency (LF) port)