Today I received to packets with NRF24l01 pa nla modules.
1 from China (http://www.aliexpress.com/item/Free-Shipping-Special-promotions-1100-meter-long-distance-NRF24L01-PA-LNA-wireless-modules-1100meters-with-antenna/1622133032.html)
1 from Amazon (https://www.amazon.de/gp/product/B01CYDXAI4/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1)
both are working perfectly (2 other stores from Aliexpress delivered modules with the st=FAIL issue earlier).
The module from Amazon is rather expensive, but it is shielded (metal body on the pcb).
So if you are looking for working modules, I can recommend the two modules above.
