The AEW-DA550C and AEW-DA660D are UHF active unity gain diversity antenna distribution systems. The AEW-DA660D operates over a nominal 655-680 MHz range. These units are designed to complement wireless systems operating in the Audio-Technica "C" Band= (541.500 - 566.375 MHz) or "D" Band (655.500 - 680.375 MHz), as well as other wireless systems operating in the same frequency ranges.
The AEW-DA660C provides two identical sections, one for each antenna of a UHF diversity wireless system. Each section in the unit comprises an antenna input, four bandpassed, isolated receiver outputs, and a bandpassed "cascade" directional coupler to supply signal to additional AEW-DA660C units. All RF connectors are BNC-type. Ten BNC-to-BNC RF interconnect cables are included with the unit.
Antennas can be remotely located from the unit. However, due to signal loss in cables at UHF frequencies, use the lowest-loss RF cable type(s) practical for any cable runs over 25 feet. RG-8 is a good choice. Use only copper-shielded cable, not CATV-type foil-shielded wire.
Either passive or active antennas may be used. Both antenna input jacks offer switchable +12V DC output on their center pins to operate Audio-Technica powered antennas or other in-line RF devices, if desired. Up to 250 mA can be drawn from each antenna input jack.
Additionally, four jacks on the rear panel provide 12V DC (center positive) to power as many as four receivers operating on 12 volts at up to 500 mA each. Included with the unit are four DC cables appropriate for use with ATW-R310 (or likepowered) receivers.
The 12-volt supplies for powering receivers and in-line devices are short-circuit protected.
The unit features a steel case with steel-reinforced front panel and rear rack-mount supports for extreme durability. An included set of RF cables and connectors permits front-panel antenna mounting.