Cool! Is there an optimal receive antenna polarization? Michael
On Mon, Jul 03, 2017 at 10:07:03PM +0000, Juha Vierinen wrote: > > Hi, > > I forgot to mention that the interpulse period is 38 ms on 2017/07/04 at > 01:21:00 UTC and 40 ms on 2017/07/05 02:04:00 UTC. > > juha > > > On Mon, Jul 3, 2017 at 9:58 PM, Juha Vierinen <jvier...@gmail.com> wrote: > > > Hi, > > > > Just to let you guys know, I'll be radiating the moon with 1 MW and 36 dBi > > 49.92 MHz on 2017/07/04 at 01:21:00 UTC. The experiment will repeat also at > > 2017/07/05 02:04:00 UTC. Both experiments last about 15 minutes, when the > > Moon transits the radar beam. > > > > In case somebody wants to tune in with their gear, here are some details. > > > > I'm using the Jicamarca radio observatory radar, which is located in Peru. > > The system is locked to GPS. The transmissions are binary phase coded > > pulses with 10 microsecond baud length, so a recording with >100 kHz > > bandwidth is needed. > > > > If you've got a GPS locked system, you should be able to produce a lunar > > synthetic aperture radar map, such as this one: > > > > http://www.haystack.mit.edu/~j/ns-depolarized.png > > > > The phase code is a 13*13 bit Kroenecker product Barker code. The phases > > are listed here: > > http://www.haystack.mit.edu/~j/b169.h5 > > > > In text form, the code is: > > [ 1. 1. 1. 1. 1. -1. -1. 1. 1. -1. 1. -1. 1. 1. 1. 1. 1. 1. > > -1. -1. 1. 1. -1. 1. -1. 1. 1. 1. 1. 1. 1. -1. -1. 1. 1. -1. > > 1. -1. 1. 1. 1. 1. 1. 1. -1. -1. 1. 1. -1. 1. -1. 1. 1. 1. > > 1. 1. 1. -1. -1. 1. 1. -1. 1. -1. 1. -1. -1. -1. -1. -1. 1. 1. > > -1. -1. 1. -1. 1. -1. -1. -1. -1. -1. -1. 1. 1. -1. -1. 1. -1. 1. > > -1. 1. 1. 1. 1. 1. -1. -1. 1. 1. -1. 1. -1. 1. 1. 1. 1. 1. > > 1. -1. -1. 1. 1. -1. 1. -1. 1. -1. -1. -1. -1. -1. 1. 1. -1. -1. > > 1. -1. 1. -1. 1. 1. 1. 1. 1. -1. -1. 1. 1. -1. 1. -1. 1. -1. > > -1. -1. -1. -1. 1. 1. -1. -1. 1. -1. 1. -1. 1. 1. 1. 1. 1. -1. > > -1. 1. 1. -1. 1. -1. 1.] > > > > Any reports of hearing the transmissions are appreciated. > > > > juha > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
