1. Utangulizi
This user manual provides comprehensive instructions for the operation, setup, and maintenance of your MIPRO ACT-311 Hand Wireless Microphone System. This system is designed for reliable and high-quality audio transmission, offering freedom of movement for various applications.
2. Taarifa za Usalama
- Usifunue mfumo kwa mvua au unyevu.
- Avoid extreme temperatures, direct sunlight, or excessive humidity.
- Usijaribu kutenganisha au kurekebisha kitengo. Rejelea huduma zote kwa wafanyikazi waliohitimu.
- Ensure proper ventilation around the receiver unit.
- Use only the specified power adapter for the receiver.
- Tupa betri kwa kuwajibika kulingana na kanuni za eneo lako.
3. Yaliyomo kwenye Kifurushi
Please check that all items listed below are present in your package:
- MIPRO ACT-311 Receiver Unit
- Maikrofoni ya MIPRO ACT-311H Ya Kikononi Isiyo na Waya
- Power Adapter for Receiver
- Audio Cable (XLR to 1/4" Jack)
- Antennas (2x)
- Mwongozo wa Mtumiaji (hati hii)
4. Bidhaa Imeishaview

Figure 4.1: MIPRO ACT-311 Hand Wireless Microphone System. The image displays the black ACT-311 diversity receiver unit with two vertical antennas, and a black ACT-311H handheld wireless microphone resting diagonally on top of the receiver. Both the receiver and microphone have digital displays showing frequency or channel information.
4.1 Receiver Unit (ACT-311)
- Paneli ya mbele: Power button, LCD display (showing channel, frequency, RF/AF levels), SET/ACT/UP/DOWN buttons for configuration.
- Nyuma Panel: DC power input, XLR balanced output, 1/4" unbalanced output, antenna connectors.
4.2 Handheld Microphone (ACT-311H)
- Kichwa cha Maikrofoni: Integrated grille protecting the microphone capsule.
- Mwili: Power switch, LCD display (showing battery status, channel, frequency), ACT sync window.
- Sehemu ya Betri: Located at the bottom, accessible by unscrewing the base.
5. Kuweka
- Unganisha Antena: Screw the two antennas onto the connectors at the rear of the ACT-311 receiver.
- Muunganisho wa Nishati: Connect the supplied power adapter to the DC input on the receiver and plug it into a power outlet.
- Pato la Sauti: Connect the receiver's XLR or 1/4" output to your mixer, amplifier, or audio interface using the appropriate audio cable.
- Install Batteries (Microphone): Unscrew the bottom cap of the ACT-311H microphone. Insert two fresh AA batteries, observing polarity (+/-). Screw the cap back on.
- Washa: Press the power button on the receiver. The LCD display will illuminate.
- Frequency Synchronization (ACT Sync):
- On the receiver, select your desired channel/frequency using the UP/DOWN buttons.
- Press the ACT button on the receiver. The ACT indicator will flash.
- Align the ACT sync window on the microphone with the ACT sync port on the receiver (usually near the ACT button). Hold them close until the microphone's display shows the synchronized channel/frequency.
6. Maagizo ya Uendeshaji
6.1 Kuwasha / Kuzima
- Mpokeaji: Press the POWER button on the front panel.
- Maikrofoni: Slide the power switch on the microphone body to the ON position.
6.2 Kurekebisha Kiasi
The output volume of the receiver can be adjusted via your connected mixer or amplifier. The microphone itself does not have a volume control.
6.3 Uchaguzi wa Chaneli
If you experience interference, you may need to change the operating channel. Use the UP/DOWN buttons on the receiver to select a new channel, then perform the ACT sync process again with the microphone.
7. Matengenezo
- Kusafisha: Use a soft, dry cloth to clean the exterior of the receiver and microphone. Do not use liquid cleaners or solvents.
- Utunzaji wa Betri: Remove batteries from the microphone if it will not be used for an extended period to prevent leakage.
- Hifadhi: Hifadhi mfumo mahali pa baridi, kavu, mbali na jua moja kwa moja na joto kali.
8. Utatuzi wa shida
| Tatizo | Sababu inayowezekana | Suluhisho |
|---|---|---|
| Hakuna sauti kutoka kwa maikrofoni. | Microphone or receiver not powered on; Batteries low/dead; Incorrect channel; Audio cable disconnected. | Ensure both units are on; Replace batteries; Perform ACT sync; Check audio cable connections. |
| Interference or static. | Other wireless devices nearby; Operating too far from receiver; Obstructions. | Change channel on receiver and re-sync microphone; Reduce distance to receiver; Ensure clear line of sight. |
| Low audio level. | Kiwango cha kuingiza kwenye kichanganyaji/amplifier too low; Microphone not close enough to sound source. | Increase input gain on connected audio equipment; Position microphone closer to the sound source. |
9. Vipimo
| Kipengele | Maelezo |
|---|---|
| Mfano | ACT-311H (Microphone), ACT-311 (Receiver) |
| Rangi | Nyeusi |
| Kipengele cha Fomu ya Maikrofoni | Mfumo wa kipaza sauti |
| Muundo wa Polar | Omnidirectional |
| Impedans | 600 ohm |
| Chanzo cha Nguvu | Battery Powered (Microphone) |
| Nyenzo | Chuma |
| Signal-kwa-kelele uwiano | 78 dB |
| Idadi ya Vituo | 8 |
| Masafa ya Marudio | 100 Hz - 10 KHz |
| Majibu ya Mara kwa mara | 16 kHz |
| Teknolojia ya Uunganisho | Bila waya |
| Aina ya kiunganishi | XLR |
| Vifaa Sambamba | Mashine ya Karaoke |
| Uzito wa Kipengee | 113 g (Microphone) |
| Nchi ya Asili | Taiwan |
10. Udhamini na Msaada
For warranty information and technical support, please refer to the documentation provided with your purchase or contact your local MIPRO distributor. Keep your proof of purchase for warranty claims.





