Sony WD-820A MHz Band Antenna Divider. Sony WD-820A MHz Band Antenna Divider. 800 Series MHz Band Antenna Divider for use with more than three 800 series wireless systems. Four antenna operation is possible. Rack mount (1 space). Provides diversity output for up to four receivers. Multi-channel operation by combination with the MB-8N and WRU-8N or the MB-806A and WRU-806/806B. Cascade output can be used for an additional antenna divider or receiver. Two pair of antenna input connectors for up to four AN-820A antennas to expand the operating area of a wireless microphone system. DC 9V power supply for the AN-820A UHF antennas via coaxial cable. The USA type operates in 758 MHz to 806 MHz.