Posted by GLADUS63 |
Aug 15, 2012 @ 04:01 PM | 3,218 Views
Flying in an area with a lot of interferences, I found an idea (not new and use by professionals), why not killing the parasites with a band pass cavity filter.
I found one on ebay, I modified it to suit 1010Mhz (a spectrum analyser is needed for that), it's the blue thing from REACTEL.
I made a test video, with 2 VTx emitting at the same time, on for simulating parasites (800 mW at 980 Mhz with a dipole) and one for simulating a long range plane flying away (200 mW at 1010 Mhz with a dummy load on it).
I'm very happy with it, just look at the result, first test a good Vrx (lawmate) with no cavity, second test RMRC with the cavity filter.