1. Introducció
The Lectrosonics DPR-A is a state-of-the-art digital plug-on transmitter designed for professional audio applications. It offers a unique design that seamlessly integrates with any microphone or line-level source via a standard XLR connector. This manual provides detailed instructions for the proper setup, operation, and maintenance of your DPR-A transmitter.
Key features include a wide tuning range across the UHF television band, selectable output power, and robust AES 256-CTR encryption for secure transmissions. Its external antenna ensures exceptional operating range and reliability.
2. Informació important de seguretat
Please read and follow all safety instructions carefully to prevent damage to the device or injury to yourself.
- No exposeu la unitat a l'aigua ni a una humitat excessiva.
- Avoid extreme temperatures. Operate the device within its specified temperature range.
- No intenteu obrir ni fer el manteniment de la unitat vosaltres mateixos. Encarregueu totes les tasques de manteniment a personal qualificat.
- Feu servir només les piles especificades i llenceu-les correctament.
- Assegureu-vos que hi hagi una ventilació adequada quan feu servir el dispositiu.
- Mantenir fora de l'abast dels nens.
3. Components i controls del producte
Familiarize yourself with the various parts and controls of your DPR-A transmitter.

Figura 3.1: Lectrosonics DPR-A Digital Plug On Transmitter showing the XLR connector, control panel with LCD, and antenna connector.
3.1. Controls i pantalla del panell frontal
- Pantalla LCD: Shows frequency, battery status, audio levels, menu options, and other operational information.
- MENU/SEL Button: Used to enter menus and select options.
- Botó TORNAR: Used to return to the previous menu or exit a setting without saving.
- Botó d'encendre (⑂): Press and hold to power the unit on or off.
- amunt (↑) i avall (↓) Botons: Used to navigate menu options and adjust values.
- PWR KEY LED: Indicates power status and key lock.
- Audio Level Indicators (-10, -20): LEDs indicating input audio signal levels.
3.2. Connectors
- XLR Connector (Male): Standard 3-pin XLR for connecting microphones or line-level audio sources.
- Antenna Connector (SMA): For attaching the external antenna.
4. Guia de configuració
Follow these steps to prepare your DPR-A transmitter for operation.
4.1. Instal·lació de la bateria
- Locate the battery compartment (typically on the side or bottom of the unit).
- Obriu la tapa del compartiment de la bateria.
- Insert fresh batteries, observing the correct polarity (+/-) as indicated inside the compartment.
- Tanqueu bé la tapa del compartiment de la bateria.
4.2. Microphone/Line Source Connection
- Align the XLR connector of your microphone or audio source with the XLR input on the DPR-A transmitter.
- Push firmly until it clicks into place, ensuring a secure connection.
4.3. Connexió d'antena
- Screw the supplied antenna onto the SMA antenna connector on the side of the transmitter.
- Tighten the antenna finger-tight; do not overtighten.
5. Funcionament
This section details how to operate your DPR-A transmitter.
5.1. Encès / apagat
- Per encendre: Manteniu premut el botó d'engegada (⑂) for approximately 2 seconds until the display illuminates.
- Per apagar: Manteniu premut el botó d'engegada (⑂) for approximately 2 seconds. The display will show a power-down confirmation; release the button to confirm.
5.2. Navegant pel menú
- Premeu MENÚ/SEL per entrar al menú principal.
- Utilitza el Up (↑) i Avall (↓) buttons to scroll through menu options.
- Premeu MENÚ/SEL again to select a highlighted option or enter a sub-menu.
- Ús Up (↑) i Avall (↓) to change values or settings.
- Premeu MENÚ/SEL to confirm a setting, or TORNAR per sortir sense desar.
- Premeu TORNAR repeatedly to return to the main operating screen.
5.3. Selecció de freqüència
The DPR-A can tune from 470.100 to 607.950 MHz.
- From the main menu, navigate to the "Frequency" or "Tune" option.
- Utilitza el Up (↑) i Avall (↓) buttons to adjust the frequency in 100 kHz or 25 kHz steps.
- Premeu MENÚ/SEL to confirm the selected frequency.
5.4. Ajust de potència de sortida
The transmitter offers selectable output power of 25 mW or 50 mW.
- Navigate to the "Power" or "RF Power" setting in the menu.
- Select either 25 mW or 50 mW using the Up (↑) i Avall (↓) botons.
- Premeu MENÚ/SEL per guardar la configuració.
5.5. Encryption (AES 256-CTR)
The DPR-A supports AES 256-CTR encryption for secure communication. Refer to the detailed encryption setup instructions in the full Lectrosonics manual for key generation and synchronization procedures.
6. Manteniment
Proper care and maintenance will extend the life of your DPR-A transmitter.
6.1. Neteja
- Netegeu l'exterior de la unitat amb un drap suau i sec.
- Per a la brutícia tossuda, utilitzeu una mica damp drap amb sabó suau i després eixugueu-lo immediatament.
- No utilitzeu netejadors abrasius, dissolvents ni productes químics agressius.
6.2. Cura de la bateria
- Traieu les piles si no heu d'utilitzar la unitat durant un període prolongat per evitar fuites.
- Always use high-quality batteries.
6.3. Emmagatzematge
- Guardeu el transmissor en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Protect the unit from physical shock and vibration.
7. Solució De Problemes
This section addresses common issues you might encounter with your DPR-A transmitter.
| Problema | Causa possible | Solució |
|---|---|---|
| La unitat no s'encén. | Piles gastades o instal·lades incorrectament. | Canvieu les piles o comproveu la polaritat. |
| No audio output from receiver. | Incorrect frequency setting; transmitter not powered on; microphone not connected. | Verify frequency matches receiver; ensure transmitter is on; check microphone connection. |
| Poor operating range or signal dropouts. | Antenna not properly connected; interference; low output power. | Ensure antenna is securely attached; check for sources of interference; increase output power if necessary. |
| La pantalla és tènue o no respon. | Bateria baixa; temperatura extrema. | Replace batteries; move unit to a moderate temperature environment. |
If the problem persists after trying these solutions, please contact Lectrosonics customer support.
8. Especificacions
Technical specifications for the Lectrosonics DPR-A Digital Plug On Transmitter.
- Model: DPR-A
- Interval de freqüència: 470.100 - 607.950 MHz (UHF TV Band)
- Passos d'afinació: 100 kHz o 25 kHz
- Potència de sortida: Selectable 25 mW or 50 mW
- Xifratge: AES 256-CTR
- Entrada d'àudio: Standard XLR connector (microphone/line level)
- Connector d'antena: Tipus SMA
- Pes de l'article: 2 lliures
- ASIN: B0CPTLS5RX
- Data de primera disponibilitat: 6 d'agost de 2024
9. Informació de la garantia
Lectrosonics products are covered by a limited warranty. For detailed information regarding warranty terms, conditions, and registration, please refer to the warranty card included with your purchase or visit the official Lectrosonics weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.
10. Atenció al client
For technical assistance, service, or additional information, please contact Lectrosonics customer support:
- Weblloc: www.lectrosonics.com/support
- Telèfon: Consulteu el weblloc per als números de contacte regionals.
- Correu electrònic: Consulteu el weblloc web per a adreces de correu electrònic d'assistència.
When contacting support, please have your product model (DPR-A) and serial number ready.





