Wireless bodypack transmitter UT-280
Model UT-280
Overview
The UT-280 is a miniature UHF wireless bodypack transmitter designed to work with the UR-280 true diversity receiver and other compatible UR systems.
Its compact metal housing, color TFT display, and selectable RF output power make it suitable for professional environments with varying distance and RF noise requirements.
The mini XLR-4P input supports lavalier microphones, headsets, and instruments, providing great flexibility for voice and live sound applications.
Technical specifications
Type
UHF wireless bodypack transmitter
Compatible System
UR-280 systems and other compatible UR series
Carrier Frequency Range
521.25 MHz – 936.85 MHz (region-dependent)
Oscillation
PLL synthesized
Harmonic Radiation
< 50 dBm below main carrier
Maximum Deviation
± 45 kHz
Modulation
FM
RF Bandwidth
Up to 134 MHz (region-dependent)
Input Connector
4-pin mini XLR (for lavalier / headset / instrument)
Usage Pattern
With LM-series lavalier, HM-series headset, or other sources with compatible output
RF Output Power
10 mW / 40 mW selectable
Display
1.14" color TFT showing frequency, group, battery level, lock, and RF/AF status
Audio Compression
Classic Relacart audio companding circuit
Gain Adjustment
Selectable gain input levels (typically 3 steps) for different sources
Battery
1 × AA battery (alkaline or rechargeable NiMH)
Current Consumption
≈ 205 mA (typical)
Battery Life
≈ 4 hours with alkaline battery (typical)
Dimensions
65 (W) × 21.3 (D) × 75.5 (H) mm
Weight (without Battery)
Lightweight, suitable for extended belt or clothing wear
Construction
Compact, durable metal housing with integrated belt clip
Applications
Conferences, presentations, education, worship, corporate events, and live performances
Key features
- Compact, lightweight design with a durable metal housing and integrated belt clip for comfortable extended use.
- Color TFT display clearly showing frequency, group, battery level, lock status, and signal level.
- Selectable RF output power (10 mW / 40 mW) to balance transmission range and battery life.
- Mini XLR-4P input compatible with LM-series lavalier microphones, HM-series headsets, and other professional audio sources.
- Full integration with the UR-280 system, including IR synchronization from the receiver and status display on both units.
- Relacart audio companding circuit delivering clean sound with a wide dynamic range in vocal and presentation applications.
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