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PVilb.1
Associate
Apr 7, 2022 3:31 PM UTC
Question

The Spirit1 data sheet doesn't have a clear description of how to set the PA_POWER[X] registers for a desired power output level. I would like to set the PA for a 0dBm output - is there a table that relates the register setting to output power level?

I am using the SPSGRF-915 module. Other details: 902-928MHz band, GFSK modulation, 250kBaud, channel filter BW 564kHz, channel spacing 334.2kHz

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1 reply

Winfred LU
ST Employee
Apr 11, 2022 4:52 AM UTC

Incrementing by 1 the PA register value will correspond about to half dB decrement of output power.

The following table would be the values to output power levels.

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