There are 8 profiles for PSR B1919+21

0.10275 GHz	kl99
0.41 GHz	gl98
0.61 GHz	gl98
0.925 GHz	gl98
1.408 GHz	gl98
1.42 GHz	sgg+95
1.642 GHz	gl98
4.85 GHz	hoe99