ADAC Luftfahrt Technik recently upgraded the existing Becker Avionics DVCS 5100 Digital Audio and Intercom System installed on two ADAC EC145 HEMS helicopters to the new state-of-the-art DVCS 6100. The replacement was easy because the new DVCS 6100 is designed as a ‘drop-in’ replacement for the DVCS 5100 series. With this upgrade, only the existing Audio Control Units (ACU) and the Remote Control Unit (REU) are replaced.