There are 11 profiles for PSR B2020+28

0.10275 GHz	kl99
0.41 GHz	gl98
0.61 GHz	gl98
0.925 GHz	gl98
10.45 GHz	hx97b
10.55 GHz	sgg+95
1.408 GHz	gl98
1.42 GHz	sgg+95
1.642 GHz	gl98
4.75 GHz	sgg+95
4.85 GHz	hx97b