AD-90S is a UHF 4-channel power antenna splitter with a maximum output level of +26 dBm (0.4 W), assisting with one transmitter connecting to 4 transmitting antennas. Primarily operates with 4 MI-808T in-ear monitoring transmitters or 4 MT-90 wireless interlinking transmitters to send signals through 4 channels with reliable signal transmission and larger signal coverage in multiple directions. Note that AD-90S is not designed for receivers.
Each channel of AD-90S can be connected to an AD-90A UHF wideband power amplifier to increase signal output power and transmission range when the antenna is installed in complex terrain or a large building with many partitions.