Where is the modulation in Modulation_utils

Hi all,

I am really confused. I opened the modulation_utils and I cannot
figure out how the modulation part is performed, it is just an empty
curly braces.

_type_1_modulators = {}

def type_1_mods():
return _type_1_modulators

def add_type_1_mod(name, mod_class):
_type_1_modulators[name] = mod_class

Would anybody resolves this for me.

Thanks

modulation_utils is a registry for modulations implemented in other
modules. A grep in the same directory as modulation_utils turns up
bpsk.py, cpm.py, gfsk.py, gmsk.py, psk.py, qam.py, qpsk.py.