UR-270D + 2x UB-222, band A (522-586 MHz)

Relacart UR-270D + UB-222 522-586MHz - dual-channel UHF wireless system with two boundary microphones

Table microphones without a single cable. The Relacart UR-270D + UB-222 is a dual-channel UHF system operating in the 522-586MHz band, consisting of a UR-270D receiver in a metal 1U rack housing and two UB-222 wireless boundary microphones. The microphones feature electret condenser transducers with a cardioid pattern and a 120° pickup angle, capturing the voices of people seated in front of them clearly while reducing sound from behind. With no cables on the table, the room can be rearranged quickly and the table stays tidy. It is designed for AV integrators equipping conference and lecture rooms, council chambers, educational facilities and churches.

Each UB-222 microphone offers volume adjustment from -10 to +10dB and a 200Hz low-cut filter that reduces low frequencies, such as rumble transmitted through the table. Two AA batteries provide approx. 9 hours of operation. The receiver features an automatic frequency scan button (AFS), infrared synchronisation, a Feedback Killer and a MagicEQ parametric equaliser. The LCD display with a Polish-language menu shows RF and AF levels, signal strength and battery status, while the TCP/IP protocol allows the receiver to be controlled over the network. The range reaches 80m in open space.

Features

• Dual-channel UR-270D UHF receiver in a 1U rack housing
• 2 UB-222 wireless boundary microphones
• Operating band UHF 522-586MHz, FM modulation
• Automatic free frequency scan (AFS)
• Infrared microphone-to-receiver synchronisation
• Feedback Killer and MagicEQ parametric equaliser
• Receiver control via TCP/IP protocol
• LCD display: RF and AF levels, signal strength, battery status
• Audio outputs: balanced XLR and unbalanced 6.3mm jack
• Receiver: sensitivity 5dBµV, signal-to-noise ratio above 100dB, THD below 0.5% (1kHz)
• Receiver frequency response 45Hz-18kHz (±3dB)
• Range up to 80m in open space
• Receiver power supply 12-18V DC, 1A
• UB-222 microphone: electret condenser transducer, cardioid polar pattern, 120° pickup angle
• UB-222: frequency response 50Hz-17kHz, dynamic range above 95dB
• UB-222: volume adjustment from -10 to +10dB, low-cut filter 200Hz/-6dB
• UB-222: RF power 10mW, max deviation ±45kHz, harmonic emission more than 45dB below carrier
• UB-222: powered by 2 AA batteries, current consumption 130mA typical, operating time approx. 9h

Benefits

• Tidy table: microphones without signal or power cables
• Quick room rearrangement without running cables
• Clear speech pickup thanks to the cardioid pattern
• Individual level adjustment for each microphone
• Reduced rumble and table noise with the 200Hz filter
• Fast setup with AFS scanning and IR synchronisation
• Sound and feedback control directly at the receiver
• Clear operation with a Polish-language menu
• Remote monitoring and control over the network
• Metal receiver housing with 19" rack ears included
• Receiver: dimensions 410x43x206mm, weight 2kg
• UB-222 microphone: dimensions 110x40x110mm (W x H x D), weight approx. 505g (without batteries)

Package contents: UR-270D dual receiver, 2 UB-222 boundary microphones, 2 BNC antennas, power supply, 19" rack ears, 4 AA batteries and user manual.

Relacart UR-270D + UB-222 522-586MHz is a convenient system for rooms where microphones need to sit on the table without a tangle of cables. Two cardioid wireless boundary microphones, automatic frequency search and a Feedback Killer deliver clear sound during meetings, council sessions, lectures, classes and services.