The AESA-N050-Radar is the AESA radar monted on the Russian Sukhoi PAK-FA. It is the second AESA radar by Russian production. It is built of about 1500 transmit/receive moduls. The radar is supported by two L-band with frequencies of 1-2 GHz. At those low frequencies most of the Radar Absorbing Material (RAM) is less effective, but resolution and accuracy are worse than they are with conventional radar frequencies, meaning that it is not possible to provide enough target information for an accurate missile shot. However they will rather be used as early warning radars, to confirm that there is "something out there".