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To better understand the radio signal emitted by extensive air-showers and tofurther develop the radio detection technique of high-energy cosmic rays, theLOPES experiment was reconfigured to LOPES-3D. LOPES-3D is able to measure allthree vectorial components of the electric field of radio emission from cosmicray air showers. The additional measurement of the vertical component ought toincrease the reconstruction accuracy of primary cosmic ray parameters likedirection and energy, provides an improved sensitivity to inclined showers, andwill help to validate simulation of the emission mechanisms in the atmosphere.LOPES-3D will evaluate the feasibility of vectorial measurements for largescale applications. In order to measure all three electric field componentsdirectly, a tailor-made antenna type (tripoles) was deployed. The change of theantenna type necessitated new pre-amplifiers and an overall recalibration. Thereconfiguration and the recalibration procedure are presented and theoperationality of LOPES-3D is demonstrated.

LOPES-3D, an antenna array for full signal detection of air-shower radio emission