Re: [Discuss-gnuradio] GRCon15 Talk recordings

[Andy Walls]

On Sun, 2015-08-30 at 13:18 -0400, Andy Walls wrote:
> > Message: 2
> > Date: Sat, 29 Aug 2015 17:30:29 -0400
> > From: Sylvain Munaut

> > 
> > For anyone interested into digging into this, here are some recordings
> > of the mic RF signal during talks at GRCon 15
> > 
> > http://people.osmocom.org/~tnt/grcon/mic-f5.030000e%2b08-s2.000000e%2b06-t20150826090018.cfile
> > http://people.osmocom.org/~tnt/grcon/mic-f5.030000e%2b08-s2.000000e%2b06-t20150826090030.cfile
> > 
> > (Hehe, I bet you didn't expect that when you clicked on that email title :p)
> > 
> > 
> > Microphone system is from Shure, their ULXD line of products (
> > http://www.shure.com/americas/products/wireless-systems/ulxd-systems )
> > FCC filing for the microphone that was used: https://fcc.io/DD4ULXD1G50
> > 
> > Modulation is 8-PSK and symbol rate is 156250 sym/s

FWIW, 8-PSK at 156250 sym/s confirmed. :)

It took me long enough.  I'm so used to FSK and ASK systems, PSK took a
little while to recall.

-Andy

shure_ulxd_constellation.png
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