Quadrature Phase Shift Keying

But then you can play a simulation of different sequence of bits being sent over the medium.

And you will see how the phase changes here in case of QPSK.

But if I go to 64 QAM, I'm going to see the changes in phase and also amplitude to kind of simulate what happens when different sequences of bits are being sent over the medium.

So you can study modulation, understand that the higher the modulation goes, the more bits you're sending for each symbols.

So I know that from here to 38 miles out on 40 meters, that modem works great all the time.

And I went and established four other modes, like the next one down that is faster but not as robust is QPSK.

And then I have got a couple of other ones that go progressively faster.

So for the purposes of MCOM tools, I didn't want people to try to figure out which modem, which modulation scheme do I use and which coding rate, blah, blah, blah.