https://devzone.nordicsemi.com/f/nordic-q-a/10072/how-to-enable-an-extern-pa-in-gazell-modeHi: I make the gazell ready, and I need an extern PA(RFX2401) for a long distance commuicate. But there is some trouble when enalbe the PA. My function: Host: pin_Set(rxen); in function host_rx_data_ready() { pin_Set(txen); add_packet_tx_fifoen-USTelligent Community 13Thu, 05 Nov 2015 00:45:08 GMThttps://devzone.nordicsemi.com/thread/37342?ContentTypeID=1Thu, 05 Nov 2015 00:45:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f03dc350-e8fe-4062-abae-d5be3ce5576bchenyu<p>I know. Thank you!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/37341?ContentTypeID=1Wed, 04 Nov 2015 12:26:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d0f76193-4cf1-4e90-94f9-25da85018aefPetter Myhre<p>Firstly, a PA will not improve the range of your receiver, so it should only be enabled when you are transmitting.</p> <p>Secondly, a return from nrf_gzll_add_packet_to_tx_fifo() does not mean that the packet is sent.</p> <p>Maybe you can try what is described in Øyvind&#39;s answer <a href="https://devzone.nordicsemi.com/question/41164/receive-enable-control-timing-of-power-amplifier/">here</a>?</p><div style="clear:both;"></div>