Happymodel 2.4G T Omnidirectional FPV Antenna 40MM 90MM IPEX U.FL For ELRS EP1 EP2 Receiver TBS Tracer RC FPV D

Frequency  (MHz)      2400.0
Efficiency (dBi)    -0.89
Gain (dBi)     2.23
Efficiency (%)       81.46
Directivity (dB)     5.12
Peak Gain Position (Theta)   180.00
Peak Gain Position (Phi)      330.00
Efficiency ThetaPol (%)       20.90
Efficiency PhiPol (%)   60.56
Upper Hem. Efficiency (%)  39.93
Lower Hem. Efficiency (%) 41.54
Connector IPEX/IPX/U.FL
Antenna width 52mm
Antenna length 40mm/90mm(optional)