Zaxcom FDP2
MPN #FDP2
Antenna filter with 35 MHz bandwidth, 512-692 MHz tuning, 50 dB out-of-band rejection, 3 dB loss at center, SMA/SSMA connectors, 50 ohm impedance
The FDP2 Filter Antenna is a precision-engineered RF filter designed to optimize performance in both wireless transmitter and receiver systems. It serves a dual purpose: suppressing out-of-band interference and enhancing signal clarity, especially in environments with multiple RF sources. Factory-tuned to a specific frequency between 512 MHz and 692 MHz, the FDP2 ensures only signals within a 35 MHz window around the selected center frequency are allowed to pass through. This makes it an essential tool for professionals working in live sound, broadcasting, or any application where clean and interference-free RF transmission is critical.
In transmitter setups, the FDP2 significantly reduces out-of-band noise, allowing transmit antennas to be placed near receiving antennas without risking signal desensitization. For receivers, it acts as a barrier against disruptive signals, such as nearby walkie-talkies, by filtering out frequencies outside its tuned range. The unit is universally compatible with RF devices from any manufacturer, and its rugged, compact design includes SMA or SSMA connectors. With multiple block options available, users can select the most appropriate frequency range for their specific application, although some upper-range blocks are no longer permitted for use in the USA.
Features
Reduces Transmitter Noise: Suppresses unwanted RF noise from transmitters to prevent interference with nearby receivers.Improves Receiver Performance: Blocks out-of-band interference, helping receivers focus only on desired signals, even in noisy environments.Custom Frequency Tuning: Factory-tuned to a specific center frequency between 512 MHz and 692 MHz for precise filtering.Broad Compatibility: Works with any RF transmitter or receiver, regardless of brand.Targeted Bandpass Filtering: Allows signals within a 35 MHz range to pass through while reducing others significantly.Interference Protection: Helps prevent overload from nearby devices like walkie-talkies or other RF sources.
Specifications
General Specifications
RF bandpass filter for transmitter and receiver applicationsFactory-tuned to user-specified center frequency within 512-692 MHzCompatible with any RF transmitter or receiver
Frequency Specifications
Frequency range: 512-692 MHzCenter frequency options: Any within 512-692 MHzBandwidth: 30-35 MHz
Frequency Blocks
Block 20: 518-542 MHzBlock 21: 536-572 MHzBlock 22: 560-590 MHzBlock 23: 590-614 MHzBlock 24: 614-644 MHz (not available for use/sale in USA)Block 25: 638-668 MHz (not available for use/sale in USA)Block 26: 662-692 MHz (not available for use/sale in USA)
Performance
Filter loss at center frequency: 3 dBMaximum out-of-band rejection: 50 dBRoll-off rate: ~2 dB/MHz outside bandpass
Electrical
Impedance: 50 ohms input/output
Connectors
Input: SMA or SSMAOutput: SMA
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