https://devzone.nordicsemi.com/f/nordic-q-a/80914/use-52832-ble-pachip-get-1-5ghz-radio-signalas i said above,i got 1.5GHz radio signal,such as follow: left is 1.5G,right is 2.4G I want to know if the PA is configured correctly in my code. here is my code: static void pa_lna_assist(uint32_t gpio_pa_pin, uint32_t gpio_lna_pin) { ret_code_ten-USTelligent Community 13Tue, 26 Oct 2021 13:36:11 GMThttps://devzone.nordicsemi.com/thread/335995?ContentTypeID=1Tue, 26 Oct 2021 13:36:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c0f0f861-44c8-4a60-8fe0-62267fb4a3aeJared<p>Hi,</p> <p>Are you using our development kit or a custom board? If you&#39;re using a custom board, has it been tuned?</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/335937?ContentTypeID=1Tue, 26 Oct 2021 11:28:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8e5e0e82-e783-4aed-8f67-09ab04c3a255Liny<p>sorry for reply late，we use sky66111-11 as FEM，the datasheet as follow.thanks</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/U10_2D00_SKY66111_2D00_11.PDF">devzone.nordicsemi.com/.../U10_2D00_SKY66111_2D00_11.PDF</a><b><br /></b></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/335455?ContentTypeID=1Fri, 22 Oct 2021 10:54:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a8c1900d-be5e-492b-aaa6-0b0d4af19743Jared<p>Hi,</p> <p>The code looks ok. Which FEM module are you using?</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>