Gnuradio bandwidth

1. What is bandwidth on Gnuradio?
2. What is sample rate in GNU Radio?
3. Why do we use throttle in GNU Radio?
4. What is USRP in Gnuradio?

What is bandwidth on Gnuradio?

The bandwidth is 100 / 8 = 12.5 MHz, but the gnuradio reshapes the bandwidth as 100 / 8 / 4 = 3.125 MHz. So, you can see on the figure the bandwidth is about 3.125 MHz (of course it seems a bit wider due to the transition band). The transmission rate is 100 / 8 / 4 = 3.125 Ms/s (symbols per second).

What is sample rate in GNU Radio?

Note: the Sample Rate is set to 32 kHz.

Why do we use throttle in GNU Radio?

The Throttle Block is typically attached directly to the output of a non-hardware source block (e.g. Signal Source), in order to limit the rate at which that source block creates samples.

What is USRP in Gnuradio?

The USRP Source Block is used to stream samples from a USRP device (i.e. act as the receiver). There is no need to use a Throttle block when a hardware source like a USRP Source is used, because the USRP acts as the throttle. There are two methods of setting parameters and adjusting them while running.