Marcus didn't mention this in his e-mail, but I wanted to bring attention to it, again:
CCERA is trying to raise money to support their efforts through a crowdfunding campaign, which you can find here: https://www.gofundme.com/help-make-the-ccera-a-reality-2tvbzx8?rcid=cc4b75bc902911e6adacbc764e05b494 Everyone on this list knows Marcus' name, and more than likely has received support from him at some point. If you are able, I encourage you to support his efforts in open source radio astronomy =) Cheers, Ben On Thu, Dec 1, 2016 at 3:57 PM, <mle...@ripnet.com> wrote: > Effective integration time was about 40 minutes. > > The beamshape is roughly 42 x 18 degrees from our array antenna. > > > > > > > On 2016-12-01 15:54, Daniel R. Marlow wrote: > > Hello, > > > > First, congrats to Marcus and CCERA. > > > > We are working at 21 cm (1420 MHz) and find that there are at least > a few pulsars not that far below B0329+54 (now called J0332+5434) in signal > strength. Indeed, one of the interesting things is that owing to > scintillation effects, there are times when this pulsar is not as bright as > some of the pulsars. Of course, when this pulsar is at its best, the > signal really is quite strong: we get a good detection after just a few > turns using a 60' dish and 50 MHz of BW. > > > > A question . . . roughly what was the integration time for the plot > that you showed? > > > > Sincerely, > Dan Marlow > > > > > > *From: *Discuss-gnuradio <discuss-gnuradio-bounces+marlow= > princeton....@gnu.org> on behalf of "mle...@ripnet.com" <mle...@ripnet.com > > > *Date: *Thursday, December 1, 2016 at 3:41 PM > *To: *"Iain Young, G7III" <g7...@g7iii.net> > *Cc: *Discuss-gnuradio <discuss-gnuradio-bounces+mleech=ripnet....@gnu.org>, > "discuss-gnuradio@gnu.org" <discuss-gnuradio@gnu.org> > *Subject: *Re: [Discuss-gnuradio] Probable pulsar observing success at > CCERA > > > > Keep in mind also that B0329+54 is really the only one within reasonable > "reach" for an amateur in the northern hemisphere--the others are much > fainter, although if one simply added another "gulp" of antenna every > paycheque or two... > > Also, you need a stable clock--I'm using an OCXO, but a TCXO will work for > shorter observing times. So, if you are using a dongle, you'll need to > replace its clock. > > > > > > > > > > On 2016-12-01 15:19, Iain Young, G7III wrote: > > Hi Marcus, > > Brilliant. I am in the middle of assembling my own radio telescope, > but had not thought Pulsar reception would be possible. > > I have a couple of questions on the RF Hardware. I see from some other > updates, that the antenna is essentially sets of a 4 bay HDTV antenna. > > How are you phasing them all together ? Just additive combiners with > same length coax ? What amplification are you using before feeding > them to the SDR ? Or ? > > > Best Regards > > Iain > > On 01/12/16 18:45, Marcus D. Leech wrote: > > One of the many goals we set for ourselves at the Canadian Centre for > Experimental Radio Astronomy was to successfully observe > pulsar B0329+54 before spring. This pulsar is the only one bright > enough for a small observatory in the northern hemisphere to > observe. > > See our update: > > http://www.ccera.ca/uncategorized/success-in-observing-pulsar-b032954/ > > The software is available via github: > > https://github.com/ccera-astro/pulsar_pfb _display > > No custom blocks required--just a modern Gnu Radio install, and ideally, > pyephem. > > Doing this with Gnu Radio was so very easy... > > > > _______________________________________________ > 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 > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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