The CDA10 and CDA20 are low-noise linear distribution amplifiers, providing a minimum 10 dB gain with extremely low distortion. The wide bandwidth allows the user a single amplifier for all distribution frequency applications: VHF, Midband, Super-band, Hyper-band, Ultra-band and UHF. The supplied UL approved power supply allows use in all international power systems. All four versions may be powered with either 12 VDC line power or the external adaptor. The CDA10PR and CDA20PR are bi-directional versions of the CDA10 and CDA20, providing a passive return path from 5-40 MHz.