Line choke
ND0300-503
ND0420-503
ND0910-503
ND0950-503
ND1400-503
ND1800-503
MDP90A..
0100
0250
0500
–
0750, 1100
MDP92A..Using a line choke is permitted but does not provide any technical advantage.
0100, 0250
MDR90B..
0750
MDR91B..