Sold as: 1 pcs bi-directional 25W fixed attenuator Why choose this attenuator Protects sensitive equipment and test instruments by reducing signal power without changing signal characteristics. Provides a stable, repeatable 30 dB attenuation with ±1 dB tolerance for consistent measurement and system performance. Low reflection (VSWR ≤ 1.20) and wide frequency coverage minimize signal distortion across a broad range of RF applications. Key features and specifications Function: Fixed attenuator, bi-directional — can be used in either direction without changing performance. Attenuation: 30 dB ±1 dB for predictable signal reduction. Power handling: Maximum input power 25 W. Frequency range: DC to 3 GHz — supports DC and RF through microwave frequencies. VSWR: ≤ 1.20 for low return loss and stable impedance matching. Connector: N male to female (compatible with standard N-type connections). Impedance: 50 Ω — designed for common RF systems and test equipment. Temperature range: -55°C to +125°C — reliable across extreme environmental conditions. Quantity: 1 piece per lot. How this product solves problems Prevents overload and damage: Lowers high power levels to safe levels for receivers, spectrum analyzers, and other sensitive devices. Improves measurement accuracy: Stable attenuation and low VSWR reduce measurement error caused by reflections or mismatches. Simplifies system setup: Bi-directional operation and standard N connectors make it easy to insert into existing 50 Ω signal chains without reconfiguring the network. Typical applications RF test and measurement: Insert between a device under test and measurement equipment to control input power and protect instruments. Transmitter/antenna setups: Reduce transmitter output to simulate lower-power conditions or protect lab equipment during alignment and tuning. Signal conditioning in communications systems: Provide consistent attenuation for system testing, component characterization, or field deployments operating up to 3 GHz. Usage notes Install using compatible 50 Ω N-type connectors; ensure connectors are tightened to proper torque for best VSWR performance. Operate within the specified maximum input power (25 W) and temperature range (-55°C to +125°C) to maintain specifications. Bi-directional design allows use in either direction without performance change. This attenuator delivers predictable 30 dB attenuation, solid power handling, wide frequency coverage, and low VSWR for reliable performance in RF labs, field systems, and communications setups.