Re: [Discuss-gnuradio] UHD example on USRP1

[Josh Blum]

> 1. What is the parameter --spb, samples per buffer. And generally, what is
> this buffer?

This is the buffer that the application fills with samples, and passes
into the call device->send()

> 2. What is the relationship between spb (sample per buffer), duration
> (number of seconds to transmit) and rate (rate of outgoing samples) and
> wave-freq (waveform frequency in Hz)?
> 

Samples per buffer is independent of these other variables. Indirectly,
it controls how often the call to send() occurs. The option is there to
allow users to experiment with various buffer sizes.

-josh