Re: [Discuss-gnuradio] How to hold a values from file source

[songsong gee]

Thank you.
I made it with help of josh's
and your advice about frequency is helpful, too. :)

2010/10/28 Marcus D. Leech <address@hidden>

On 10/27/2010 11:58 AM, Josh Blum wrote:
> Ok. I see the pattern...
>
> '0' = 00110000
>
> '1' = 00110001
>
> Your plots look like one of the above patterns repeating. You
> literally put the ascii characters '1' and '0' into a binary file.
> *facepalm*
>
> -josh
>

Good sleuthing, Josh.

Looking at the flow-graph, it seems like the modulation "bits" are
running at the same rate as the carrier frequency, which won't work--not
 even slightly.

Generally in AM/ASK, the modulation frequency is *much* lower than the
carrier frequency, my gut is that you'd need at least several cycles
 of carrier between each bit.


--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org

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-- 
Seokseong Jeon a.k.a., Gee Songsong 
combined course in ITCE (IT Convergence Engineering), POSTECH WCU program
mail: address@hidden phone: +82)10-8338-1229