Sennheiser UR-24

Detailed Description of the Sennheiser UR-24 Wireless System

The Sennheiser UR-24 is a professional wireless audio system designed for use in a variety of live sound and recording applications. Its robust features and versatile functionality make it suitable for both vocal and instrumental use. Here’s a comprehensive overview of its components and specifications:

Front Panel of the Receiver

1. Power Switch:
– Function: Powers the receiver on or off. Located for easy access, it allows users to quickly start or stop the system.

2. LCD Display:
– Function: Provides real-time information about the system’s status. It displays critical data including the current frequency, channel number, signal strength, and battery life. This display is essential for monitoring and adjusting settings.

3. Function Button:
– Function: This button allows users to navigate through the receiver’s menu and access various settings and configurations. It is typically used for functions such as tuning, adjusting frequencies, or accessing advanced features.

4. Volume Adjust Knob:
– Function: Controls the output volume of the audio signal coming from the receiver. This knob allows for precise adjustments to ensure optimal audio levels are achieved.

5. Infrared Versus Windows:
– Function: This component facilitates synchronization between the receiver and transmitter. By aligning the infrared windows, users can transfer frequency settings directly, ensuring a stable and interference-free connection.

6. RF LED:
– Function: Indicates the strength and quality of the received radio frequency signal. A steady LED light suggests a strong, clear signal, while flickering or no light may indicate issues with reception.

7. AF LED:
– Function: Indicates the presence and strength of the audio signal. A lit LED ensures that audio is being properly received and transmitted, while an unlit LED might suggest a problem with the audio signal.

Rear Panel

1. Antenna:
– Function: Receives the radio signals from the transmitter. Proper placement and orientation of the antenna are crucial for optimal signal reception and minimizing interference.

2. Mic Out:
– Function: This output jack is used to connect the receiver to a microphone or other audio equipment. It provides the processed audio signal that is sent to the next stage in the sound system.

3. Instr Out:
– Function: Similar to the Mic Out, this jack is used for connecting instruments. It outputs the audio signal from instruments or other audio sources to other equipment.

4. Power Supply Jack:
– Function: Connects to the power supply unit to provide power to the receiver. This jack is essential for the operation of the system and should be securely connected to avoid interruptions.

Specifications

– Frequency Range: 500-800 MHz
– Description: This broad frequency range allows the UR-24 to operate in various environments and avoid interference from other wireless devices. It is suitable for both indoor and outdoor use.

– Modulation Type: FM (Frequency Modulation)
– Description: FM modulation helps maintain audio clarity and reduces the impact of signal interference, providing reliable and consistent audio quality.

– Regulable Range: 50 MHz
– Description: Users can adjust the operating frequency within a 50 MHz range, which allows for flexibility in choosing an appropriate channel to avoid interference.

– Channel Step Frequency: 500 Hz
– Description: This step frequency interval provides fine tuning of the receiver’s frequency settings, ensuring precise alignment with the transmitter and reducing potential signal overlap.

– Dynamic Range: 80 dB
– Description: A wide dynamic range of 80 dB ensures that the receiver can handle a broad range of audio levels, from quiet whispers to loud noises, without distortion or loss of detail.

– Output Power: 20 mW
– Description: The receiver’s output power of 20 mW is suitable for most audio applications, providing a strong signal that is compatible with a wide range of audio equipment.

– Power Supply: Two AA Batteries
– Description: The use of two AA batteries makes the receiver portable and easy to replace. It is convenient for on-the-go applications and ensures that the system remains operational even when a power source is not available.

– Working Hours: More than 10 hours
– Description: With a 20 mW output power, the system can operate continuously for over 10 hours on a set of AA batteries. This extended battery life is ideal for long events or sessions.