Produk Selesaiview
The Mipro ACT-311B is a single-channel analog UHF receiver designed for optimal radio reception, paired with the ACT32H handheld transmitter microphone. This system operates within the 823-832 MHz frequency range, offering 112 selectable channels across 10 groups, plus a customizable group. Its robust design and user-friendly features make it suitable for various professional audio applications.

Figure 1: Mipro ACT-311B Receiver and ACT32H Handheld Microphone System.
Kandungan Pakej
- Mipro ACT-311B Single-Channel Receiver
- ACT32H Handheld Transmitter Microphone
- Bekalan Kuasa Suis Luaran
Arahan Persediaan
1. Receiver Placement and Connection (ACT-311B)
Place the ACT-311B receiver on a stable, flat surface. Ensure adequate ventilation around the unit. Connect the external switching power supply to the receiver's power input and then to a suitable power outlet.

Rajah 2: Depan view of the Mipro ACT-311B Receiver, showing the display and controls.
Connect the TNC antenna connectors to the rear of the receiver. For optimal reception, position the antennas vertically and away from metal obstructions. Use XLR balanced or 6.3mm unbalanced jack connections for audio output to your mixer or amplebih hidup.
2. Handheld Transmitter Setup (ACT32H)
The ACT32H handheld microphone operates on 2 AA batteries. Open the battery compartment, insert the batteries with correct polarity, and close the compartment securely. Ensure the microphone's power switch is in the OFF position before inserting batteries.

Figure 3: Mipro ACT32H Handheld Microphone, showing the display and power switch.
Arahan Operasi
1. Menghidupkan
First, power on the ACT-311B receiver using the power button on the front panel. The backlit LCD will illuminate, displaying current settings. Next, slide the power switch on the ACT32H handheld microphone to the ON position.
2. Frequency Synchronization (ACT Function)
The ACT (Automatic Channel Targeting) function allows for precise and rapid frequency synchronization between the receiver and transmitter.
- On the ACT-311B receiver, select the desired channel group and channel using the control buttons. The LCD will show the selected group (GRP) and channel (CH).
- Tekan ke BERTINDAK button on the receiver. The display will prompt for synchronization.
- Align the IR port of the ACT32H microphone with the IR sensor on the receiver (usually near the ACT button).
- The receiver will transmit the frequency information to the microphone, and the microphone's LCD will update to match. A successful synchronization will be indicated on both devices.

Rajah 4: Jarak dekat view of the Mipro ACT-311B Receiver's LCD display, showing channel, group, frequency, and battery indicators.
3. Monitoring and Adjustments
The receiver's LCD displays radio signal level, audio level, and the transmitter's battery level. Monitor these indicators during operation. An alert indicator will appear if signal disturbance occurs. The receiver features dual Squelch settings for NoiseLock and Pilotton to ensure clear audio transmission.
The ACT32H microphone also has an LCD displaying battery status, group, and channel. Ensure the microphone's power switch is locked during use to prevent accidental power-off.
Penyelenggaraan
- Pembersihan: Use a soft, dry cloth to clean the surfaces of the receiver and microphone. Do not use liquid cleaners or abrasive materials.
- Penggantian Bateri: Replace the AA batteries in the ACT32H microphone when the battery indicator on either the microphone or receiver shows low power. Always use fresh, high-quality batteries.
- Storan: When not in use for extended periods, remove batteries from the microphone and store the system in a cool, dry place, away from direct sunlight and extreme temperatures.
- Penjagaan Antena: Handle the receiver antennas carefully to prevent bending or damage.
Menyelesaikan masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada bunyi dari penerima |
|
|
| Intermittent signal / Static |
|
|
| Receiver LCD not lighting up |
|
|
Spesifikasi
Mipro ACT-311B Receiver
- Julat Kekerapan: 823-832 MHz
- Lebar jalur: 24 MHz
- Antena: Kepelbagaian
- Sambungan: Balanced XLR and unbalanced 6.3 mm jack
- Bekalan Kuasa: External switching power supply
- Dimensi (W x H x D): 210 x 44 x 180 mm
- Berat: Kira-kira 0.8 kg
- Saluran: 112 selectable channels in 10 groups + 1 custom group (up to 8 programmable channels)
- paparan: LCD bercahaya belakang
- Perumahan: Robust metal, EIA standard compliant
Mipro ACT32H Handheld Transmitter Microphone
- Julat Kekerapan: 823-832 MHz
- Perumahan: Solid plastic
- Kuasa: 2 bateri AA
- Kapsul: Condenser with cardioid characteristic
- ciri-ciri: Interchangeable head system, clear sound, LCD display (battery status, group, channel), lockable on/off switch
Maklumat Waranti
This Mipro product is covered by a manufacturer's warranty. Please refer to the warranty card included with your product or contact your local Mipro distributor for specific terms and conditions regarding warranty coverage and service.
Sokongan
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact your authorized Mipro dealer or visit the official Mipro webtapak untuk sumber sokongan dan maklumat hubungan.





