Lectrosonics UMCWBD-L Wideband UHF Diversity Antenna Multicoupler (470 to 692 MHz)

The Lectrosonics UMCWBD-L Wideband UHF Diversity Antenna Multicoupler is a mechanical rackmount unit designed to offer power and RF-signal distribution for up to four compact diversity receivers, all within a single rack space. Perfect for mobile productions spanning wide geographic areas, this multicoupler boasts an extended frequency range from 470 to 692 MHz, covering blocks 470 to 26 as well as bands A1, B1, and C1. This expansive range ensures adaptability in dealing with a changing RF environment. Compatible receivers include Lectrosonics models like DCR822, DSR, DSR4, UCR411, UCR411a, and SR.

• Selective filtering in the front end attenuates RF signals above and below the passband to suppress intermodulation and noise.
• Following the filters is a low-noise RF amplifier with gain matched to compensate for the losses in the splitter that follows.

• A precision strip line splitter/isolator divides the RF signal into four isolated signals preventing spurious RF coupling between receivers.
• The splitter/isolator is termination independent, which prevents mismatched or disconnected RF outputs from affecting the other receivers.

• The multicoupler is powered from an external power supply unit (included) of 11 to 18 VDC, with individual auto-reset fuses for each receiver in the RF/power distribution module.
• This architecture eliminates ground loops and AC hum that can occur when the receiver outputs are connected to other audio equipment operating from a different AC source.