NUCLEO-WL55JC frequency range confusion

[sboucher78]

Hi,

There is confusion with NUCLEO-WL55JC frequency range. Maybe 2 distinct Web pages should be considered for NUCLEO-WL55JC1 and NUCLEO-WL55JC2.

Board page: https://www.st.com/en/evaluation-tools/nucleo-wl55jc.html

Frequency range indicated: 150 MHz to 960 MHz (none JC1 or JC2 precision, as there were only one model)

AN5406 - How to build a LoRa® application with STM32CubeWL

Frequency range indicated for NUCLEO-WL55JC2 at page 7: 470 MHz and 520 MHz

Frequency range indicated for NUCLEO-WL55JC1 at page 7: 865 MHz and 930 MHz

UM2592 - STM32WL Nucleo-64 board (MB1389)

Frequency range indicated for NUCLEO-WL55JC2 at page 3: 433 to 510 MHz

Frequency range indicated for NUCLEO-WL55JC1 at page 3: 865 to 928 MHz

What is the real frequency range of NUCLEO-WL55JC2 and NUCLEO-WL55JC1?

When I bought the boards, I did not pay attention to the JC2 precision, since I wanted a 915 MHz frequency band as it is indicated in the board page. I lost a lot of time struggling with the Cube examples that did not work because I configured it to work with 915 MHz.

[Issamos]

Hello @sboucher78 

For the frequency range of both evaluation boards. I think each board should work on both frequency ranges (from AN5406 and UM2592) since there is not a big difference between both ranges. But the correct range should be the one on the UM2592. I think both documents should have the same values. @Imen.D could you please have a look at this. 
Both boards are based on the same MCU but with different HW RF configuration to be compatible with LB (Low-Band) or HB (High-Band). So, using a frequency that is not on the supported band may work but with Low RF performance. For the webpage, I think your suggestion may be considered by the Marketing team in ST. But a webpage for both boards with a clear note that mention the difference between both boards revisions should be fine. I agree with you that this may be confusing. 
Best Regards.

II

[Andrew Neil]

---

@Issamos wrote:

I agree with you that this may be confusing. 

---

Indeed - pretty sure this has come up before ...

 

PS:

Ah, yes - here we go:

https://community.st.com/t5/stm32-mcus-wireless/differences-between-nucleo-wl55jc1-and-nucleo-wl55jc2/td-p/74791

https://community.st.com/t5/stm32-mcus-wireless/will-nucleo-wl55jc2-modules-work-on-gateways-configured-for/m-p/152086

https://community.st.com/t5/stm32-mcus-wireless/is-nucleo-wl55jc-available-in-the-market-difference-between/td-p/188102

https://community.st.com/t5/stm32-mcus-wireless/difference-between-wl55jc1-and-wl55jc2-versions-of-nucleo/td-p/61603

etc, ...

via: https://community.st.com/t5/forums/searchpage/tab/message?advanced=false&allow_punctuation=false&q=WL55JC1%20WL55JC2