Yes, agree. An OCXO is enough (but my opinion is the same: only jammed not steered).
On Fri, Dec 16, 2011 at 12:52 AM, Pieter ten Pierick < [email protected]> wrote: > Hi, > > > Of course, but then when you switch on your transmitter you are on your > > own. Considering the speed of a drone (700Km/h?) you need a great > > coverage, so much RF power out. > > Easy: Use a dish antenna on the transmitter. > Very directional with large ampification. > If using a 'moderate' opening angle, just pointing the dish at the drone > by hand will work. > After starting the system locked to the gps time, once the signal is on > the drone, > I don't think it matters anymore. (It might not even matter at the start?) > The drone will follow the timing of the jammer. > As the drone will receive all signals from the single transmitter, the > relative timing will be fixed. > Just using a OCXO will have a good enough short time stability to allow > the system to work, I would think. > As the plan is to land or jam the drone within say 10 minutes, long term > stability is not that important... > > Greetings, > Pieter. > > > > On Fri, Dec 16, 2011 at 12:22 AM, J. Forster <[email protected]> wrote: > > > >> > >> > >> You could just have a GPS receiver and use that to sync up the jammer. > >> > >> -John > >> > >> ============== > >> > >> > >> > > >> > To transmit a GPS cluster signal you need a GPS simulator to generate > >> > the cluster so even a single transmitter can do this, the relative > >> > timing and not the different positions of the transmitters is what the > >> > receiver sees. > >> > > >> > When over-powering the real birds you just needs to be close enough in > >> > timing, and it is the location of the target which is of interest. > >> > > >> > If this scenario is true... then they have not done their home-work. I > >> > would ask a number of critical questions already from my civilian > >> > background. > >> > > >> > Cheers, > >> > Magnus > >> > > >> > _______________________________________________ > >> > time-nuts mailing list -- [email protected] > >> > To unsubscribe, go to > >> > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> > and follow the instructions there. > >> > > >> > > >> > >> > >> > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
