Higher Performance for ADS-B and Mode-S:Increases range 10-20% over Pro Stick when filtering is beneficialA 1090MHz bandpass filter (whether built-in or a separate external part) is generally recommended for users in urban environments or with known radio transmitters nearby such as cell phone towers. Filtering is generally not recommended for users in rural environments. Filtering advantages and are dependent on the installation location.Adds Built-in 1090MHz filter with R2832U SDR and RF Amplifier (USB powered)Native SMA connector yields reduced loss due to antenna /adaptersEasier to Setup:SMA F connector for easy connectivity to high-performance antennaNo MCX adapters requiredNo external amplifier requiredAmplifier: 19dB with 0.4dB noise and OIP3 +39dBFrequency:0.1Mhz-1.7Ghz TCXOTCXO: 1-2 Filter: 1075 MHz to 1105 MHz pass bandAntenna Port: SMA female (requires SMA antenna cable and optionally N-male adapter for antenna)Colour:blueMaterial:aluminum alloyPackage Contents:1 x SDR ADS-B ReceiverOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.