Help Needed for Differentiation Implementaion

Hello all, I am currently at the example "symbol_differential_filter.grc" in the GNU Radio tutorial. It's in the chapter "QPSK Mod and Demod". My question is how taps [-1, 0, 1] is implementing the differentiation in "Decimating FIR Filter" block.

Re: BW(Sample Rate) Issue

Hello Cinaed, I’ve not experienced this problem with Gnuradio you describe, but in another context, spacecraft communication, we had a simple test setup that transmitted a fixed pattern of alternating ones and zeros. However the way error coding was done the lock was always poor. For testin

Re: BW(Sample Rate) Issue

Hi Rohith - Ihe minim sampling rate  for the Pluto is in the ball park of 500 KHz. See https://ez.analog.com/adieducation/university-program/f/q-a/557730/pluto-sdr-sampling-rate -- Cinaed On 11/30/22 05:54, Rohith Rajan wrote: I am asking a doubt regarding receiver using an  Adalm Pluto SD

BW(Sample Rate) Issue

I am asking a doubt regarding receiver using an Adalm Pluto SDR In the receiver section we are using *Polyphase Clock Sync*, *Linear Equalizer* and *Costas Loop.* My doubt is that is the configuration parameters of these blocks are dependent on the BW of the signal(Sample Rate) Keeping the parame