Meenaktchi, On 7/8/07, Meenaktchi Venkatachalam <[EMAIL PROTECTED]> wrote:
Thanks Tarun.
I am still facing problem with printing the payload as a string. It gets
printed as hex thou i use %s or %r. I checked the parameters passed to the callback function in ../gnuradio-core/src/python/gnuradio/blksimpl/pkt.py and payload is converted to a string using to_string() but still when I print payload it gets printed in hex format.
I think you are not unpacking the received payload before printing it. Please go through http://docs.python.org/lib/module-struct.html . I hope this would help you. Any suggestions?
Thanks for any help Meenaktchi
Regards, Tarun On 7/6/07, Chris Albertson <[EMAIL PROTECTED] > wrote:
> > > --- Tarun Tiwari <[EMAIL PROTECTED] > wrote: > > > Meenaktchi, > > > > You can pack "Hello World" string as paylaod then use > > send_pkt(payload) on > > the transmiter side. similarly unpack the payload at reciever to > > convert > > into string. > > > > you need to use same formating for pack and unpack at Tx & Rx > > respectively. > > Why not implement a mode that is common in the real > world? Then you can test your receiver by listening > to real signals. No need to have a transmitter working > first > > RTTY is the most basic and simple > digital mode possable. There are no frames > and no packets, no protocol and the data rates > is very low, about 45 characters per second > It is just asynchronous FSK > using two tones 1200 Hz apart. See > http://en.wikipedia.org/wiki/Radioteletype > The technology is so simple it predates computers > > There are many programs for doing RTTY on a PC > under Linux or Windows using just a sound card > So you can download and run an example working > system, get it to work, then duplicate it using > gunradio. > > The "hello world" should be the simplest thing > that can still work. I think RTTY is that. > > > Chris Albertson > Home: 310-376-1029 [EMAIL PROTECTED] > Office: 310-336-5189 [EMAIL PROTECTED] > KG6OMK/AG >
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
