1. Introduktion
This manual provides detailed instructions for the Mipro ACT-32HC UHF Rechargeable Wireless Handheld Transmitter. Designed for use with ACT300 MA series MRM 70/72 systems, this transmitter features a robust design, stable performance, and user-friendly operation. Please read this manual thoroughly before operating the device to ensure proper use and optimal performance.

Figure 1: Mipro ACT-32HC UHF Wireless Handheld Transmitter. This image displays the black handheld transmitter with a silver mesh grille and a silver band below it. The Mipro logo is visible on the lower part of the handle.
Nøglefunktioner:
- Robust plastic housing for protection against external impacts and reduced handling noise.
- Stable PLL (Phase-Locked Loop) circuit for reliable frequency transmission.
- Automatic synchronization with the receiver's frequency via MIPRO ACT (Auto Channel Targeting) function.
- Operates with a rechargeable 18500 battery.
- Quick and easy battery replacement by unscrewing the lower part of the housing.
- Removable head system for interchangeability between condenser or dynamic microphone capsules.
- Multi-part metal grille protects the capsule, reduces pop noise, and ensures clear audio.
- LCD screen displays battery status, group, and channel information.
2. Opsætning
2.1 Batteriinstallation og opladning
- Unscrew the lower part of the transmitter housing to access the battery compartment.
- Insert a fully charged 18500 rechargeable battery, observing the correct polarity (+/-).
- Securely screw the lower part of the housing back into place.
- To charge the battery, place the transmitter in a compatible charging station (sold separately) after use. The LCD will indicate charging status.
2.2 Synchronization with Receiver (ACT Sync)
The ACT-32HC transmitter features MIPRO's patented ACT (Auto Channel Targeting) function for automatic frequency synchronization with a compatible receiver.
- Ensure both the transmitter and the receiver are powered on.
- On the receiver, select the desired group and channel.
- Activate the ACT sync function on the receiver (refer to your receiver's manual for specific instructions).
- Align the IR port of the transmitter with the IR port of the receiver, typically within a few centimeters.
- The transmitter will automatically synchronize its frequency with the receiver. The LCD on the transmitter will confirm the synchronized group and channel.
3. Betjening
3.1 Tænd/sluk
- To power on the transmitter, press and hold the power button until the LCD illuminates.
- To power off, press and hold the power button until the LCD turns off.
3.2 LCD-displayinformation
The LCD screen provides essential operational information:
- Batteristatus: Indicates the remaining battery charge. Recharge or replace the battery when the indicator is low.
- Gruppe: Displays the current operating group.
- Kanal: Displays the current operating channel within the selected group.
3.3 Microphone Capsule Replacement
The ACT-32HC features a removable head system, allowing for easy interchangeability of microphone capsules.
- Sørg for, at senderen er slukket.
- Gently unscrew the microphone grille and capsule assembly from the transmitter body.
- Carefully detach the existing capsule.
- Attach the desired compatible condenser or dynamic microphone capsule.
- Screw the grille and capsule assembly back onto the transmitter body until secure.
4. Vedligeholdelse
- Keep the transmitter clean by wiping it with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Sørg for, at batterikontakterne er rene og fri for korrosion.
- Store the transmitter in a dry, cool place away from direct sunlight and extreme temperatures.
- When not in use for extended periods, remove the rechargeable battery to prevent potential leakage.
5. Fejlfinding
5.1 Ingen lyd eller uregelmæssig lyd
- Check if the transmitter is powered on and the battery has sufficient charge.
- Verify that the transmitter is correctly synchronized with the receiver (check group and channel on LCD).
- Ensure the receiver is powered on and connected to the audio system.
- Check for potential interference sources (e.g., other wireless devices, Wi-Fi routers) and try changing the operating channel if necessary.
- Confirm that the microphone capsule is securely attached.
5.2 Dårlig lydkvalitet
- Ensure the microphone grille is clean and free from debris.
- Check the distance between the transmitter and receiver; maintain it within the recommended operating range.
- Verify that the audio input sensitivity on the receiver is set correctly.
5.3 Transmitter Not Synchronizing
- Sørg for, at både senderen og modtageren er tændt.
- Confirm that the IR ports of both devices are aligned and within close proximity during the ACT sync process.
- Check the receiver's manual for specific ACT sync instructions.
6. Specifikationer
| Feature | Specifikation |
|---|---|
| Model | ACT-32HC |
| Båndbredde | 24 MHz |
| Frekvensområde | 823-832 MHz |
| Tuner Procedure | PLL syntetiseret |
| Synkronisering | ACT-synkronisering (automatisk kanalmålretning) |
| Transmissionseffekt | 30 mW |
| Maks. Indgangsfølsomhed | 140 dB SPL |
| Batteritype | 18500 genopladeligt batteri |
| Batterilevetid | Op til 12 timer |
| Materiale | Plast |
| Antal kanaler | 1 (per transmitter) |
| Forbindelsesteknologi | Trådløs (UHF) |
7. Support og garanti
For technical support, service, or warranty information, please contact your authorized Mipro dealer or visit the official Mipro webwebsted. Gem din købskvittering som købsbevis i tilfælde af garantikrav.





