| 1296 MHz Lowpassfilter with harmonic notches and integrated reflectometer -DD1US |
| 1296 MHz Lowpassfilter with harmonic notches and integrated reflectometer -DD1US http://www.dd1us.de/Downloads/23cm%20low-pass%20filter%20with%20integrated%20reflectometer%20by%20G3XDY%20rev1.1.pdf |