ELRS PP 2.4GHz EP1 RX / EP2 Receiver SX1280 EXPRESSLRS Nano Long Range Receiver + Omnidirectional Antenna For TBS TracerFeatures:1. The RX is made of good material, which is durable. 2. The RX has good performance, which is practical. 3. The antenna has fine workmanship and performance.Description:With lightweight and portable size, it is durable and has long service life. Specifications:Type: ISMESP8285 MCUSX1280IMLTRT RF ModuleAntenna: EP1_RX: Omnidirectional antennaEP2_RX: SMD Ceramic antennaFrequency Range: 2400 MHz to 2500 MHzMaximum receive refresh rate: 500HzMinimum receiver refresh rate: 25HzWorking voltage: 5vWeight: EP1_RX: 0.42gram(without antenna)EP2_RX: 0.44GRAMDimension: 10mm*10mm*6mmPeak gain: EP1_RX: 2.23dBEP2_RX: 3.7dBAntenna: Frequency (MHz) 2400.0Efficiency (dBi) -0.89Gain (dBi) 2.23Efficiency (%) 81.46Directivity (dB) 5.12Peak Gain Position (Theta) 180.00Peak Gain Position (Phi) 330.00Efficiency ThetaPol (%) 20.90Efficiency PhiPol (%) 60.56Upper Hem. Efficiency (%) 39.93Lower Hem. Efficiency (%) 41.54Connector IPEX/IPX/U.FLAntenna width 52mmAntenna length 40mm/90mm(optional)Package Included:EP1_RX/EP2_RX/40 Antenna * 4/90 Antenna * 4(optional)Notes:1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.