In 2005, an active dipole antenna has been designed to replace the log-periodic antenna.

The first CODALEMA home made antenna, the fat dipole. In the inset the layout of the CODALAMP ASIC designed as its Low Noise Amplifier. The first CODALEMA home made antenna, the fat dipole. In the inset the layout of the CODALAMP ASIC designed as its Low Noise Amplifier.

The main requirements for this detector, composed of a low noise preamplifier placed close to a dipole antenna, where a wide bandwidth ranging from 100 kHz to 100 MHz, a good sensitivity on the whole spectrum and a very compact shape. In June 2005, a cross shape array of 16 antennas has been installed completed later with 8 additional antennas forming the CODALEMA-2 setup. These antennas were decommissioned in 2011 and replaced by autonomous stations.