Re: [Discuss-gnuradio] 802.15.4 transmitted signal structure

[Bastian Bloessl]

> I find out that it consist of a bursty transmission of a signal compound of
> 11 to 12 msec of wide-band signal followed by a narrower 400 Khz signal that
> lasts around 10 msec and is 20 db stronger then the wide-band signal.

The wideband signal is the packet. Actually, it should be terminated with a 
tx_eob tag. Do you see any ‘U’s on you console? AFAIK, if the packet does not 
end with an tx_eob tag you might see the oscillator as narrow band signal.

> 
> * Another unrelated point: I need to decrease at minimum the signal
> transmitted, if I choose the gain at transmission at 0 dB. Is there a way to
> even go beyond that:
> Does it make sense to have the "blocks.multiply_vcc" in the transceiver.py
> flowgraph values between 0 and 1 ? 

Yes, that works.

Bastian