JH 13H is a VHF broadband antenna designed to be used in pairs as part of tactical homing system or as single unit for communication. These antennas are designed as low profile, low drag blade antennas. The antenna is encased in a single piece glass fibre reinforced epoxy shell. The r ed design and construction of the antenna helps to withstand severe environmental conditions. This antenna is qualified and suitable for helicopters and subsonic aircrafts.