You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
RadioReference.com Forums
Hi all,
For use with my RTL-SDR and in my local area due very heavy RF overload coming from 1.0 kW RF power Digital TV on 490MHz, 500, 700 MHz and LTE, 3G/4G from 800, 900 MHz
Needed a UHF bandpass or lowpass filters for receiving 420 - 450 MHz, after search found this page and order UHF bandpass filters. I tested and working. This type UHF filter also stop 87 - 108 MHz so in my case i removed the FM bandstop filter and needed only this filter doing it all and bring a 3 - 5 dB extra signal strength on UHF.
They also have airband filters and VHF filters. Shipping to Europe it take some weeks to arrive.
Picture
- without filter see red color very strong signal
- using a filter see yellow color signal go down and above 600 MHz signals are gone.