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MRM-70 UHF ACT Diversity Receiver Module

Matching Transmitters / Microphones

MRM-70 + ACT-707HE
MRM-70 + ACT-707TE & Headworn
MRM-70 + ACT-707TE & Lavalier
MRM-70 UHF Diversity Receiver Module with ACT
Key Features

MRM-70 is a wireless receiver module fitted for MIPRO's MA-705, MA-707 & MA-909 portable PA amplifiers. It can also fit other PA amplifiers, mixers, active powers, signal processors and other karaoke players. Its innovative wireless features and performance add value to these systems.

UHF band and PLL technology are utilized to avoid the often congested VHF band. Diversity and advanced circuitry are incorporated to eliminate signal dropouts and random noise interference. The main features and benefits are:

  1. Press the 'SCAN' button and the receiver will auto-scan and lock on to one of the 16 interference free frequencies.
  2. Press the 'ACT' button to automatically upload the receiver frequency to the transmitter.
  3. Once the frequency has been set, the data is stored in memory, meaning that the frequency is set until it is changed by performing the 'ACT' function again, even after powering off.
  4. Bright and easy-to-read LED displays numeric channel and RF &AF strengths.
  5. Receiver "Sensitivity" level can be sensitivity adjusted to prevent interference.
  6. Reliable true diversity reception with dual "Pilotone & NoiseLock" circuit prevents interferences.
  7. Output level and dynamic range accurately pre-adjusted to equal the microphone capsule's sensitivity, thus ensuring optimal performance of the system. ( 1.5dB tolerance).
  8. Modularized design allows easy installation, maintenance and DIY. Simplicity, reliable and affordable traits make it an ideal accessory.

To install simply follow the simple wiring diagram. Ascertain the main unit has an ideal reserved slot to be fitted. Align the edge connector and wired accordingly. Fasten the two screws in place when done.

MRM-70 is matched with ACT-707HE handheld or ACT-707TE bodypack transmitter.

Specifications
Frequency Range 620~960 MHz
Oscillation Mode PLL synthesized
Bandwidth 24MHz
Preset Channels 16 Non-interference channels
Frequency Set-up Press "Scan" button to auto scan & lock at an open, non-interfering receiver frequency.
Press "ACT" button to upload this same receiver frequency into transmitters automatically.
Receiving Mode CPU-controlled diversity receiving
Squelch Control Innovative " PiloTone & NoiseLock" dual-squelch circuit
Display Status Dedicated LED display panel is clearer and more definite in displaying channel, RF and AF signal strength. Noise indicator clearly display if a receiver is under the state of interference.
Sensitivity 6dB£gV, at S/N>80dB
Max. Deviation Range ¡Ó68KHz
Spurious Emissions <82dB
Frequency Response 60Hz~15KHz¡Ó3dB (Overall system)
S/N Ratio >100 dBA
T.H.D. <0.5% @ 1KHz¡]Dev.=40KHz¡^
AF Output 610mV rms
Power Supply DC 12~15V
Current Consumption <190 mA
Working Temperature -10¢X~60¢J
Dimensions 75(W) x 35(H) x 141(D) mm
3.0(W) x 1.4(H) x 5.6(D) in.
Weight 126g / 4.4oz.
Transmitters ACT-707HE handheld and ACT-707TE bodypack transmitter
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