FM
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== Frequency Modulation == | == Frequency Modulation == | ||
| - | With FM, the carrier frequency is modulated by the audio signal, with the transmitter power remaining constant. FM typically produces better quality signals than [[AM]] when the received signal is strong, but worse quality under poor reception conditions. It is rarely used on [[HF]] frequencies. | + | With FM, the carrier frequency is modulated by the audio signal, with the transmitter power remaining constant. FM typically produces better quality signals than [[AM]] when the received signal is strong, but worse quality under poor reception conditions. It is rarely used on [[HF]] frequencies, with the exception of [[CB]] operators in certain countries and [[amateur radio]] operators using the FM in the 10 meter band. |
[[Category: Transmission modes]] | [[Category: Transmission modes]] | ||
Revision as of 18:14, 12 October 2018
Frequency Modulation
With FM, the carrier frequency is modulated by the audio signal, with the transmitter power remaining constant. FM typically produces better quality signals than AM when the received signal is strong, but worse quality under poor reception conditions. It is rarely used on HF frequencies, with the exception of CB operators in certain countries and amateur radio operators using the FM in the 10 meter band.
