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Need help?Do you have a question about the Sennheiser AD 3700 and is the answer not in the manual?
Specifies the operational frequency band of the antenna.
Defines the directional beamwidth at -3 dB.
Indicates the signal rejection in the opposite direction.
Specifies the approximate signal amplification provided by the antenna.
Details adjustable amplification levels and performance without DC feed.
Specifies the antenna's characteristic impedance.
Third-order intercept point, indicating linearity performance.
Identifies the type of connector for the RF output.
Details voltage and current requirements for the antenna's operation.
Specifies the standard thread size for mounting.
Provides the physical size of the antenna.
States the total weight of the antenna, including the booster.
Explains the meaning of LED colors for amplifier settings.
Provides guidance on amplification settings based on cable type and length.
Details the warranty period provided by the manufacturer.
Lists regulatory compliance information and directives.
The Sennheiser AD 3700 is an active, directional paddle-type antenna designed for professional wireless audio applications. It integrates a broadband antenna booster, the AB 3700, to enhance signal reception and is specifically engineered to be compatible with a range of Sennheiser receivers, including the EM 3731, EM 3732, EM 2000, EM 2050, and EM 6000. This specialized compatibility ensures optimal performance and seamless integration within existing Sennheiser wireless systems.
The primary function of the AD 3700 is to capture radio frequency (RF) signals within its specified frequency range and deliver them to a connected receiver. Its directional design means it is most sensitive to signals originating from a particular direction, which helps to minimize interference from other sources and improve the signal-to-noise ratio. This characteristic makes it particularly useful in environments with multiple RF signals or where a focused reception pattern is desired. The integrated booster further amplifies the received signals, compensating for cable losses and ensuring a strong, clear signal reaches the receiver, even over longer cable runs.
A key usage feature of the AD 3700 is its adjustable amplification, offering flexibility to adapt to various cable lengths and environmental conditions. Users can select from several amplification settings: bypass (-3 dB), 5 dB, 10 dB, and 15 dB. This adjustment is crucial for optimizing signal strength without introducing excessive noise, a common issue with over-amplification. The antenna provides clear visual feedback through an LED operation indicator, which changes color to reflect the currently selected amplification level (Red for bypass/-3dB, Green for +5dB, Blue for +10dB, and White for +15dB). This intuitive indicator allows for quick verification of the antenna's operational status and settings.
The AD 3700 is designed for both indoor and outdoor use, making it a versatile tool for various production environments, from concert stages to broadcast studios. Its robust construction ensures durability, while the standard 3/8" or 5/8" mounting thread allows for easy attachment to a wide range of stands and fixtures. The antenna connects to receivers via a BNC socket, a common and reliable RF connector in professional audio. Power for the integrated booster is supplied through the antenna cable itself, drawing DC feed from the RF OUT socket of the connected receiver, simplifying setup by eliminating the need for a separate power supply at the antenna location.
Proper setup is critical for maximizing the performance of the AD 3700. The manual provides guidelines for minimum distances, recommending at least 5 meters between the transmitter and the antenna, a minimum of 1 meter between antennas, and at least 0.5 meters from walls. Adhering to these guidelines helps to prevent signal degradation and optimize reception. The pick-up pattern diagram illustrates the antenna's directional characteristics, showing its sensitivity across different angles, which is essential for precise aiming and signal acquisition.
Maintenance features for the AD 3700 emphasize careful handling and adherence to safety guidelines to ensure longevity and reliable operation. Users are advised to read all instructions carefully and keep a copy for future reference. It is crucial to only use attachments, accessories, and spare parts specified by the manufacturer to maintain product integrity and warranty coverage. The product housing should not be opened by the customer, as this voids the warranty. All servicing should be referred to qualified service personnel, especially if the product has been damaged, exposed to liquids, or is not operating normally.
Cleaning the device requires caution; users should not use any solvents or aggressive cleaning agents. This prevents damage to the antenna's materials and electronic components. Furthermore, safety instructions for antenna mounting highlight the importance of using safety wires to protect against tipping or dropping, with all associated components complying with local regulations. These measures not only protect the equipment but also ensure the safety of personnel.
The AD 3700 is intended for use as an antenna with specific Sennheiser receiver equipment. Any other application is considered improper use, and Sennheiser disclaims liability for damages arising from such misuse. This underscores the importance of understanding the device's intended function and limitations. The product comes with a 24-month warranty, and users can find current warranty conditions on the Sennheiser website or by contacting a Sennheiser partner. Compliance with various regulations, including UKCA, CE, and WEEE directives, further assures users of the product's quality and environmental responsibility.
General| Antenna gain level (max) | - dBi |
|---|---|
| Antenna type | Directional antenna |
| Product type | Antenna |
| Product color | Black |
| Country of origin | Germany |
| Brand compatibility | Sennheiser |
| Compatible products | Sennheiser EM3731/3732, EM2000/2050 |
| Antenna connector type | - |
| Connector(s) | BNC |
| Master (outer) case width | 399 mm |
| Master (outer) case height | 493 mm |
| Master (outer) case weight | 8225 g |
| Harmonized System (HS) code | 85177100 |
| Shipping (inner) case weight | 820 g |
| Quantity per master (outer) case | 9 pc(s) |
| Quantity per shipping (inner) case | 1 pc(s) |
Weight and Dimensions| Height | - mm |
|---|---|
| Package depth | 370 mm |
| Package height | 45 mm |
