OMNITRONIC UHF-604 4-Channel UHF Wireless Microphone System 520-554 MHz 13063605

The OMNITRONIC UHF-604 is a professional 4-channel UHF wireless microphone system delivering reliable, interference-free audio transmission for live performances, conferences, and houses of worship. Its true diversity reception and fixed frequencies in the 520-554 MHz band ensure stable, drop-out-free operation for up to four simultaneous handheld microphones.

Advantages

Each channel uses independent true diversity circuitry with two antennas per receiver, minimizing signal dropouts even in challenging RF environments. The system operates on four pre-coordinated frequencies (520, 530, 540, and 554 MHz), allowing quick setup without complex frequency scanning. The 19" 1U rackmount receiver integrates seamlessly into standard equipment racks, while balanced XLR outputs per channel and a mixed 6.3 mm output provide flexible connectivity to mixers and PA systems.

Suitable for

• Live stage performances and concerts
• Conferences, presentations, and panel discussions
• Houses of worship and auditoriums
• Educational institutions and training rooms
• Mobile DJs and event production

Key specifications

• 4-channel UHF wireless system with true diversity reception
• Fixed frequencies: 520.000, 530.000, 540.000, 554.000 MHz
• Frequency response: 40 Hz – 18 kHz
• Signal-to-noise ratio: >90 dB
• Total harmonic distortion: <0.5% at 1 kHz
• RF output power: 10 mW per transmitter
• Operating range: up to 50 m (line of sight)
• Receiver outputs: 4 x XLR balanced, 1 x 6.3 mm jack mixed
• Receiver power: 100-240 V AC via included adapter
• Transmitter power: 2 x AA batteries each (not included)
• Receiver dimensions: 19" rackmount, 1U height

Recommendations

For optimal performance, keep the receiver antennas clear of metal obstructions and position them at least 1 m above the ground. Use high-quality alkaline or rechargeable AA batteries in the handheld transmitters and replace them before each extended event. When rack-mounting, ensure adequate ventilation to prevent overheating.