LIRA-433 – targeted antenna amplified +11 dBd Targeted antenna for secure transmission via frequency of 433 MHz to and from remote sites or sites with poor accessibility АN-433: directional antenna amplified +6 dBd Directional multi-element antenna АN-433, amplified to 6 dB АN2-433: semi-directional antenna amplified +3 dBd Multidirectional dipole antenna АN2-433, amplified to 3 dB АS-433: pole antenna Pole half-wave antenna АS-433 АG-433: tamper-free antenna Tamper-free antenna АG-433.