Funke SP1090 dipole (sleeve) transponder antenna, so called 'Sperrtopfantenne'. For installation inside the fuselage or (especially suited) for use in balloons. Includes 4m Aircell AC5. With TNC female connector. Frequency: 1030 MHz - 1090 MHz Impedance: 50 Ohms Weight: 19g Dimensions: L=111mm W=76mm