The Proxmark 3 RDV4 has a modular antenna system, allowing for antennas to be hot-swapped depending on your assignment requirements. This pack includes both of the Long Range LF Antennas and the Long Range HF Antennas.Proxmark 3 RDv4 HF Long Range Antenna Pack Performance information is below:Antenna TypeRead DistanceHF Read Range (Built-in)40 – 85mmHF Read Range (medium antenna)90mmHF Read Range (long range antenna)100 – 120mmProxmark 3 RDv4 LF Long Range Antenna Pack Meticulously engineered with 6-layer PCBs, featuring a Frequency Switch and Q Switch – enabling targeting of specific frequencies and badge types.Q-Switch The Q-Switch has two settings: 14 (Extended Range) and 7 (Extended Accuracy).A Q-Switch setting of 14 will give up to 30% further read range (on lf search / lf hid read etc commands).A Q-Switch setting of 7 will give better writing performance on T55XX and EM410XX tags.Frequency SwitchThe frequency switch allows for tuning to specific tag types: 125KHz or 134KHz.Performance information is below:Antenna TypeRead DistanceLF Read Range (Built-in)66 – 72mmLF Read Range (medium antenna)90mmLF Read Range (long range antenna)110 – 133mmWhat’s included1x Proxmark 3 RDv4 Long Range Medium Range HF Antenna Pack1x Proxmark 3 RDv4 Long Range Medium Range LF Antenna PackCompatible SystemsProxmark 3 RDV 4.01 Long Range HF Antenna Pack UnboxingLong Range LF Antenna Pack Unboxing