At 13:59 08/02/2011 +0200, Denys Fedoryshchenko wrote:
On Tuesday 08 February 2011 01:42:42 George Herbert wrote: > On Mon, Feb 7, 2011 at 2:23 PM, Ryan Wilkins <r...@deadfrog.net> wrote: > > On Feb 7, 2011, at 4:06 PM, Michael Painter wrote: > >> Hi Denys > >> I doubt it's intentional jamming since I've had the same problem. > >> Aegis radar is very high power in full radiate mode and as such creates > >> problems for Low Noise Amplifiers listening at 3.4-4.2 GHz. Someone > >> needs to talk to Microwave Filter Company. > >> http://www.microwavefilter.com/c-band_radar_elimination.htm > >> > >> --Michael > > > > +1 for Microwave Filter. They've helped me out in a couples jams before. > > They're very responsive and the products are good, too. > > I think people in San Diego and near Norfolk, VA have the same problems. > > The C-band frequencies are 2x those of the S-band (4-8 GHz for C, 2-4 > GHz for S); if the SPY-1 / SPY-1D radar is frequency hopping it may > well step on someone's C-band links at twice the radar's basic > frequency. Just need a filter to remove actual S-band frequencies > from C-band feeds. I try to install C-Band bandpass filter, no effect at all, so it is in-band interference. Putting foil (yes i try almost everything) near LNB doesn't affect interference level too.
Been there in 2007- different disruptor, though . See: http://en.wikipedia.org/wiki/Yes_%28Israel%29#Technical_problems_.28autumn_2007.29 http://www.haaretz.com/print-edition/business/a-nation-steps-up-to-rescue-yes-1.230782 -Hank