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ACT-747 UHF Quad-Channel True Diversity Receiver |
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• Industry’s only color VFD (Vacuum Florescent Display) delivers a very bright light with exceptionally clear contrast for
clear viewing in day/night environments.
• Industry’s only interference indicator.
• Up to 16 preset compatible systems per band.
• Features MIPRO’s patented and now, industry standard “AutoScan” and ACT (Automatic Channel Targeting) channel
setup technology.
• True diversity technology for optimum reception.
• Dual-squelch "PiloTone & NoiseLock" circuits minimize interference.
• Proprietary high performance RF filter and circuitry improve anti-interference characteristics and increased
compatible systems.
• Displays all pertinent parameters on the same screen for easy control and monitoring.
• All controls are intuitive and easily accessible, allowing for quick and easy system setup via a single rotary controller.
• Transmitter battery status meter.
• RF & audio meters.
• XLR & 1/4” audio outputs.
• Can be remotely controlled and monitored via advanced and user-friendly pc-controllable software.
• 100m(330ft.) operating range.(line-of-sight)
• 100% design and made in Taiwan ensures high product quality and value. |
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| Channels |
Quad Channel |
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| Main Frame Size |
EIA standard 1-rack unit |
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| Display Panel |
Color VFD (vacuum fluorescent display) panel displays band code, channel, RF/AF meter, diversified antenna, interference warning and transmitter battery gauge. Setup group, channel, frequency, user name, squelch level, remote control address, and panel lock directly from panel itself. |
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| Frequency Range |
UHF 620~950MHz |
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| Bandwidth |
24MHz |
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| Preset Frequencies |
Group 01~06: 8 non-interference channels per group without any restriction
Group 07~08: 12 non-interference channels per group
Group 09~10: 16 non-interference channels per group
Total: 104 preset frequencies |
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| Receiving Mode |
Dual-tuner true-diversity receiving |
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| Oscillation Mode |
PLL synthesized |
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| Stability |
±0.005% (-10~50 degrees Celcius) |
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| Sensitivity |
6dBμV, at S/N>80dB, 40KHz deviation |
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| Max. Deviation Range |
±68KHz, with level limiting |
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| S/N Ratio |
>105dB(A) |
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| T.H.D. |
<0.5% @ 1KHz |
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| Frequency Response |
50Hz~18KHz±3dB, with high-pass filter |
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| Squelch |
Innovative "PiloTone & NoiseLock" dual-squelch circuit |
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| Audio Output Adjustment |
The world's first wireless system with output level accurately pre-adjusted to equal to the microphone capsule sensitivity and ensure optimal performance. |
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| Maximum Output Level |
Unbalanced: +10dBV / 0dBV / -6dB; Balanced: +16dBV / 0dBV / -6dB |
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| Output Connectors |
XLR balanced & 6.3φ phone jack unbalanced |
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| Output Switch |
Switching between separate or mixed output |
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| Operation |
PC remote control or manual adjustment |
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| Squelch Adjustment |
From shuttle dial on the front panel |
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| Squelch Level Display |
Directly from VFD panel |
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| Power Supply |
Integrated 90~264V AC switching power supply |
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| Dimensions |
482(W)×44(H)×260(D)mm |
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| Weight |
Approximate 3.4kg |
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ACT-7H Supercardioide condensator handheld microfoon
• Innovative Features
Professional audio engineers have their own microphone sound preferences via knowledge and experience and will not select simply based on name brands only. MIPRO handheld transmitters are fast becoming acceptance among the leading sound engineers, audio professionals and artists worldwide due to its innovative features, performance, reliability and cutting-edge technology not found on others.
• MIPRO seeks Reproduction of the Natural Sound
Reproduction of the natural sound is MIPRO's design principle. ACT-7H handheld transmitter features a hyper-cardioid directionality condenser capsule whose high fidelity, dynamic range, fast transient responses, low feedback howling and accurate sound image characteristics personify as such.
• High SPL Inputs Without Distortion
The ACT-7H unique high fidelity modulation circuit can sustain a maximum SPL of 142 dB over the full input frequency range of 50 Hz~15 KHz (+1~-3 dB) while the THD is still under 0.9% linear width. Furthermore, since the sensitivity of the modulation circuitry is preset to accurately match the sensitivity of the capsule, users are no longer required to adjust the sensitivity level of their wireless microphone to obtain the optimal output level and dynamic range. This technology gives a clear and powerful performance in the high frequency range without having to reduce the volume to avoid distortion, unlike many other manufacturer's designs.
• Innovative ACT Function Replaces Traditional Manual Adjustment
ACT-7H utilizes the UHF band and is PLL synthesized. A conventional PLL transmitter's frequency is set up manually. This can be complicated as well as prone to errors. In order to avoid these problems, MIPRO has designed and introduced the patented ACT function to replace conventional manual adjustments. These user-friendly systems work with just one press of the receiver's SCAN button to automatically, rapidly, and accurately set and lock the receiver's working frequency. This quick and accurate set-up avoids the mistakes so often seen in manually adjusted systems.
• High-Efficiency Circuitry And Sophisticated PCB Design
Inside the ACT-7H is a high-efficiency, low-spurious emission, low-power-consumption circuit which gives you a truly impressive 18 hours of operation using just 2 AA batteries. Expertise in wireless design and many years of wireless know-how can be easily seen in the precise circuit layout of the ACT-7H.
• Finely Crafted and Professionally Styled Housing
The professional look and feel of the patented ACT-7H is worth noticing. MIPRO's principles of esthetics and ergonomics combined with use of the best materials are fruition of these two handheld transmitter microphones. They are finely crafted and have distinctive looks.
| Housing Material |
Plastic |
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| Oscillation Mode |
PLL Synthesized |
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| Carrier Frequency Range |
UHF 620~950MHz |
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| Bandwidth |
24MHz |
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| RF Output Power |
30mW (or dependent on applicable country regulations) |
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| Spurious Emissions |
<-55dBc |
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| Max. Deviation Range |
±68KHz |
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| Maximum Input Level |
148dB SPL |
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| Microphone Capsules |
MU-79, MU-38 |
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| Battery |
AA×2 |
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| Display Status |
LCD displays battery fuel gauge, channels, and error message. |
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| Dimensions |
50(Φ)×260(L)mm / 2.0(Φ)x10.2(L)" |
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| Weight |
250g / 8.8oz |
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| Note |
Varied specifications on carrier frequency range, maximum deviation, RF output power and spurious emission to comply regulation of different countries. |

ACT-7T Body-pack zender |
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• ACT-7T Body-pack zender met mini-XLR connector, metaal behuizing, LCD uitlezing voor batterij en kanaal, 2 x AA.
• Magnesium alloy housing.
• LCD panel displays group, channel, error code, and battery fuel gauge simultaneously.
• Compact, lightweight and streamline shape for easy wearing.
• Impedance selectable switch for microphone or guitar, and built-in sensitivity level adjustor.
• Industry standard mini-XLR 4-pin (TA4F) connector is utilized for quick and screw lock connection and accepts
lavaliere, headworn microphone and guitar inputs with level adjustments.
• Belt clip allows 360 degrees rotating to suit transmitter wearing.
• World's first ACT (Automatic Channel Targeting) function provides rapid automatic channel setting.
• Innovative "Photo-cell Coupling" high dynamic range and high fidelity modulation circuitry is capable of
accepting high input level and less distortion.
• Advanced efficient transmitting and low power consumption circuit design provides battery operating hours
2~3 times longer than other brands.
• Professional quality ensures no impact-damage. |
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| Housing Material |
Magnesium Alloy |
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| Oscillation Mode |
PLL Synthesized |
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| Carrier Frequency Range |
UHF 620~950MHz |
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| Bandwidth |
24MHz |
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| RF Output Power |
30mW (or dependent on applicable country regulations) |
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| Spurious Emissions |
<-55dBc |
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| Max. Deviation Range |
±68KHz, with compandor and level limiting |
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| Maximum Input Level |
0dBV |
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| Microphones |
MU-53L, MU-55L, MU-53HN, MU-55HN |
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| Input Connector |
Mini-XLR connector |
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| Battery |
AA×2 |
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| Display Status |
LCD displays battery fuel gauge, channels, and error message. |
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| Dimensions |
66(W)×107(H)x25(D)mm / 2.6(W)x4.2(H)x1.0(D)" |
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| Weight |
120g / 4.2oz |
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| Note |
Varied specifications on carrier frequency range, maximum deviation, RF output power and spurious emission to comply regulation of different countries. |
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MU-55L - MU-55LS
| • Specifications: |
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| Capsule Module(mm): |
4.5mmφ subminiature omni-directional condenser microphone |
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| Frequency Response: |
40Hz~20KHz ± 3dB |
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| Output Impedance: |
200Ω |
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| Sensitivity: |
-49dBV±3dBV/Pa(0dB=1V/Pa) |
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| Maximum SPL: |
145dB (Typical, 1%THD) |
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| Capsule-shaft holder: |
There is one on each side |
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| Output Plug: |
MIPRO mini XLR 4pin plug |
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| Cable Length: |
140 cm |
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| Weight: |
14 gram |
Pricelist: Microphones Wireless Mipro
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