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MoralkaraLynn
Associate II
September 9, 2024
Solved

Receive sensitivity of GFSK modem on STM32WL55

The STM32WL5x Datasheet mentions the RX Sensitivity of the Radio Modem for both 2-FSK and LoRa modulation (see image below) but makes no mention of GFSK, GMSK or BPSK

MoralkaraLynn_0-1725865626245.png

What are the receive sensitivity values for these modulation schemes?

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STTwo-32
STTwo-32Best answer
ST Technical Moderator
September 9, 2024

Hello @MoralkaraLynn and welcome to the ST Community :smiling_face_with_smiling_eyes:.

The sub-GHz radio implemented on the STM32WL5x support Transmission and Reception using the LoRa and the 2-FSK modulations. But it supports only the Transmission for the 2-MSK and BPSK modulation. So, no reception for GMSK, MSK and BPSK. For the GFSK, it is mentioned on the 2-FSK (FSK & GFSK). 

Then, RX sensitivity parameter should be available only For LoRa, FSK and GFSK.

Best Regards.

STTwo-32

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STTwo-32
STTwo-32Best answer
ST Technical Moderator
September 9, 2024

Hello @MoralkaraLynn and welcome to the ST Community :smiling_face_with_smiling_eyes:.

The sub-GHz radio implemented on the STM32WL5x support Transmission and Reception using the LoRa and the 2-FSK modulations. But it supports only the Transmission for the 2-MSK and BPSK modulation. So, no reception for GMSK, MSK and BPSK. For the GFSK, it is mentioned on the 2-FSK (FSK & GFSK). 

Then, RX sensitivity parameter should be available only For LoRa, FSK and GFSK.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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