Lapel system with ULM18 directional microphone

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  • ClearScan automatically finds the clearest channel
  • EZsync one-step channel setup
  • ULM18 directional lavalier microphone
  • 14 hour battery life from two AA alkaline
  • Rugged metal transmitter
  • Metal receiver chassis with optional rack mount

The R300-L is a robust UHF wireless bodypack system, suitable for any application where the convenience of a wireless lavalier microphone is required. The system's BP-300 rugged metal bodypack transmitter is simple to use, and is powered by two AA batteries. Included with the system, the ULM18 is a high quality directional (cardioid) condenser lavalier microphone suitable for sound reinforcement or recording of voice, and allows users the convenience of a hands-free presentation or performance experience. Exceptionally useful for sound reinforcement applications, the ULM18’s directional cardioid polar pattern reduces sound system feedback potential when used properly. The receiver's dual antenna diversity helps avoid signal dropouts, and its durable metal frame and chassis can either be used on a tabletop, or rack-mounted with optional rack mounting hardware.


Connector Type 1/4 inch unbalanced, 3-Pin XLR balanced
Family R300
Number of Channels 32 Per Band, 8 Simultaneous

Diversity True Antenna
Squelch Tone code plus Amplitude
Receiver Type Synthesized PLL
RF Sensitivity (12 dB SINAD) less than 1.0uV
Audio Frequency Response 80 Hz - 18kHz +/- 2dB
Balanced Line Level Output (RMS Adjustable) 10 - 100mV
Distortion (@ 1 kHz, 40 kHz deviation) less than 1.0, 0.4 typical%
Dynamic Range greater than 95 dBdB
Power Supply 12 VDC, 500 mA max
Polar Pattern Cardioid
Battery Life 14 Hours with (2) AA alkalines typical
RF Output 8 mW Typical
Element ULM18 Directional Microphone
Operating Temperature Range 5º - 45º C (41º - 113º F)
Case Material Metal
RF Frequency Range 16MHz
Signal-to-Noise Ratio (A-weighted) greater than 100 dBdB
Power Requirement 12-16 VDC, 500 mA max
Controls On/Off, Set, Up, Down, Sync
Antennas Flexible TNC 1/2 Wave

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