Check the listing for details. ADS-B 1090MHz Filter | RTL-SDR. Condition: New. Listed at 20.71 USD. ADS-B 1090MHz Filter This filter will greatly improve the reception and increase number of packets you receive. It uses one SAW component and measures only 50 x 10mm. Insertion loss is typically less than 2.5dB and LNA is not necessary. However if you want to use LNA connect it after the filter and before your receiver. Specification Center Frequency1090MHzUsable Bandpass1075-1105MHzInsertion Loss, 1075 to 1105 MHz2.5dBAmplitude Ripple, 1085 to 1095 MHz0.1dBP-PVSWR, 1075 to 1105 MHz1.8:1 Rejection Referenced to 0 dB: DC to 970 MHz 1150 to 1300 MHz 30 dB33.5Impedance50ΩMaximum Input Power Level10dBm NOTE: Follow the connection diagram below The filter will be packed in an ESD bag + bubble envelope and posted next working day. Delivery to Europe takes usually 4-6 working days. Notes: RTL dongle for illustration purposes only - not included with the filter. You can return the item provided it is in unused condition and it is well protected for postage. You will have to pay the return postage. Made in and shipped from England.