ADS-B 1090MHz Bandpass Filter 20dB Active Gain SDR SMA Module
ADS-B 1090MHz Bandpass Filter 20dB Active Gain SDR SMA Module
ADS-B 1090MHz Bandpass Filter & LNA Module — 20dB Active Gain for SDR
Upgrade your Software Defined Radio (SDR) setup with the APWIKOGER ADS-B 1090MHz Bandpass Filter Module. Engineered for aviation enthusiasts, hobbyists, and RF engineers, this compact active filter board dramatically improves ADS-B signal reception by amplifying desired signals and rejecting unwanted out-of-band interference — all in a slim, easy-to-connect package.
Key Features
- Precision 1090MHz Passband: Tuned to operate at 1090 ± 15MHz, targeting the exact ADS-B aviation frequency for sharp, focused signal capture.
- 20dB Active Gain (LNA): Integrated Low Noise Amplifier (LNA) boosts weak incoming signals by 20dB, significantly enhancing reception range and clarity.
- 2dBi Passive Gain: Dipole antenna design provides 2dBi omnidirectional vertical linear polarization passive gain for broader coverage.
- Superior Out-of-Band Rejection: Achieves >30dB attenuation of out-of-band signals, keeping your reception clean and free from unwanted interference.
- Wide Voltage Compatibility: Operates on 2.5–5.5V (bias-T via center pin), making it compatible with most RTL-SDR dongles and receivers that supply bias-T power.
- Standard SMA Female Connector: Features a standard SMA female interface (internal and external screw threads) for secure, universal connectivity to SDR receivers, coaxial cables, and antennas.
- Compact & Lightweight: Measuring just 126 × 46 × 7mm and weighing only 23.4g, this board fits easily into any SDR installation.
Full Specifications
| Operating Frequency | 1090 ± 15MHz |
| Active Gain (LNA) | 20dB |
| Passive Gain | 2dBi (dipole antenna) |
| Out-of-Band Rejection | >30dB |
| System Impedance | 50 Ohms |
| Operating Voltage | 2.5–5.5V (bias-T, center pin) |
| Operating Current | 80mA |
| Antenna Polarization | Omnidirectional Vertical Linear |
| Connector Type | SMA Standard Female (internal & external screw) |
| Filter Type | RC Bandpass Filter |
| Dimensions | 126 × 46 × 7mm / 5.0 × 1.8 × 0.3 in |
| Weight | 23.4g |
| Country of Origin | Made in China |
What's in the Box
- 1 × ADS-B 1090MHz Bandpass Filter Module
Who Is This For?
This module is ideal for RTL-SDR users, amateur radio operators, drone and aviation tracking hobbyists, and RF engineers who want to improve ADS-B aircraft tracking performance. It works seamlessly with popular SDR software such as dump1090, FlightAware, FlightRadar24 feeders, and more.
For more information on ADS-B technology and aviation surveillance systems, visit the FAA official website or review RF electronics standards via NIST Electronics Resources.
Note: Due to variations in monitor settings and lighting, the product's actual color may vary slightly from images shown. Please allow ±1–2cm tolerance due to manual measurement.
Frequently Asked Questions
Q: What SDR receivers is this 1090MHz bandpass filter compatible with?
A: This ADS-B bandpass filter module is compatible with most RTL-SDR dongles, RTL2832U-based receivers, and any SDR setup that supports bias-T power delivery (2.5–5.5V via the SMA center pin). It works with popular tools like dump1090, PiAware, FlightAware, and FlightRadar24 feeder software.
Q: Does the filter require external power, or is it powered through the coax?
A: The module is powered via bias-T through the SMA connector's center pin, requiring 2.5–5.5V at 80mA. Many modern SDR receivers provide this directly. If your receiver does not support bias-T, a separate bias-T injector will be needed.
Q: What is the difference between the passive gain and the active gain on this module?
A: The passive gain of 2dBi refers to the antenna element's inherent directional efficiency (dipole, omnidirectional). The active gain of 20dB is provided by the onboard Low Noise Amplifier (LNA), which electronically boosts the incoming signal strength — resulting in better detection of distant aircraft transponders.
Q: Will this filter work for frequencies other than 1090MHz ADS-B?
A: This module is specifically tuned for 1090 ± 15MHz and is optimized exclusively for ADS-B reception. Using it at significantly different frequencies will result in high signal attenuation due to its narrow bandpass design. For other frequency ranges, a different filter module would be required.