MIPRO ACT-818 UHF Wideband Digital Half-U Single-Channel Receiver

Key Features

  • International standard half-U black metal chassis, grey panel.
  • Panel equipped with MIPRO's latest active-illuminated color VFD, displaying all operational information at a glance, and replacing traditional button operations with a rotary encoder.
  • Patented high-dynamic RF circuit, significantly reducing harmonic interference, offering more non-interfering channels with the new wideband.
  • Digital auto-scan receiver, eliminating signal dropouts, extending reception distance, and ensuring signal stability.
  • Full-range audio quality does not degrade with signal strength or reception distance.
  • Utilizes patented high-fidelity DSP audio processing, bringing wireless microphone audio quality close to wired standards.
  • Patented A/D converter with a transmission delay of less than 2.7 ms, dynamic range exceeding 115 dBA, and distortion below 0.03%.
  • Provides a digital AES audio transmission interface, maintaining signal S/N ratio over long-distance transmission.
  • Patented 256-bit encryption function for maximum security against eavesdropping.
  • Built-in 10 types of digital microphone capsule equalizers for quick selection of preferred microphone sound quality.
  • Built-in 10 types of digital feedback suppressors to significantly inhibit microphone feedback squeal.
  • Use MIPRO's second-generation RCS2.Net digital system computer software for remote control of up to 64 system units.

Main Specifications

General Specifications

Frequency BandUHF 480 ~ 960 MHz (according to various countries' radio regulations)
Bandwidth64 MHz
Preset Frequency CountGroups 1~10 preset 12 interference-free frequencies each; Groups 11~16 preset 16 interference-free frequencies each. Total 216 carefully selected frequencies. Group 17 is for testing channels, and Group 18 is for user-defined settings and storage of 16 preferred frequencies.
Channel Resolution25 kHz
Frequency Setting MethodMIPRO's world-patented ACT (Auto Channel Targeting) function
Audio Sampling Specification24-bit / 44.1 kHz
Audio Dynamic Processing Method2nd generation DSP (Adaptive Coding)
Transmission Delay2.7 ms (analog output)
Frequency Response20 Hz ~ 20 kHz
Dynamic Range> 115 dBA, with distortion below 0.03%
T.H.D.< 0.03% at 1 kHz
Encryption FunctionPatented 256-bit encryption function for maximum security against eavesdropping.

Receiver Specifications

ChassisEIA standard half-U black metal chassis, grey panel.
Number of ChannelsSingle Channel
Practical Sensitivity12 dB μV at S/N > 118 dBA (digital output)
Harmonic Interference> 85 dB
Audio Sampling24-bit / 44.1 kHz
Reception MethodDigital auto-scan reception, eliminating signal dropouts; audio quality is not affected by signal strength or reception distance.
Analog Output2 x XLR balanced connectors, 2 x 6.3 Ø unbalanced connectors.
Analog Output SwitchMIC/LINE switch × 2
Audio OutputAES digital transmission interface and analog transmission.
Audio EQ10 preset digital Audio EQ and feedback EQ groups.
Digital Feedback EqualizerSelectable 10 types of preset microphone equalizers with feedback suppression.
DisplayMulti-function VFD fluorescent display.
Battery Level IndicatorTransmitter battery level indicator.
Power SupplyExternal switching power adapter.
Power Consumption7.5 W
Computer ControlUSB or RS-232 interface, for remote control of up to 64 MIPRO ACT-BUS systems.
Antenna SystemDetachable antennas, 50 Ω TNC connectors with bias voltage for active antennas; can connect to MIPRO antenna systems.
Compatible TransmittersACT-80H, ACT-80HC, ACT-80T, ACT-80TC, TA-80
Dimensions (L x H x W)210 x 44 x 230 mm
WeightApprox. 1.1 kg
Environmental ConditionsSuitable for -10 ~ 60℃

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