TY  - GEN
AU  - Hund, August,
TI  - Frequency modulation
U1  - 621.384152 
PY  - 1942///
CY  - McGraw-Hill Book Company, inc
PB  - New York, London
KW  - Hund, August,
KW  - Frequency modulation
N1  - Fundamental Relations and Features in Frequency Modulated Phase Modulated and Amplitude Modulated Systems (Page-1) Auxiliary Apparatus Employed in FM Systems (Page-150) Transmitters for Frequency Modulation (Page-226) Receivers for Frequency Modulated Currents (Page-249) Transmitter and Receiver Aerials (Page-278)
ER  -