CPC Main Group
H03C 3/00 Angle modulation (H03C5/00, H03C7/00 take precedence)
8 direct subcodes
Child Classifications
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- H03C 3/02 Details
- H03C 3/10 by means of variable impedance (H03C3/30 - H03C3/38 take precedence)
- H03C 3/30 by means of transit-time tube
- H03C 3/34 by deflection of electron beam in discharge tube
- H03C 3/36 by means of light-sensitive element
- H03C 3/38 by converting amplitude modulation to angle modulation
- H03C 3/42 by means of electromechanical devices (H03C3/28 takes precedence)