> Let's assume that the station at 880 is only transmitting a single 1 KHz
> tone. The transmitted AM signal would consist of the carrier at 880 KHz
> and two sidebands one at 879 KHz and the other at 881 KHz.
> Assuming againthat the transmitter output filtering has been compromised or
> removed forsome reason, then the 2nd harmonic components would be 1758,
> 1760 and 1762KHz. For the 4th harmonic, the components would be 14064,
> 14080, and 14096KHz.
The 4th harmonic of 880 is not 14080. 4 times 880 = 3520
The 16th harmonic of 880kHz is 14.080 MHz.
The 9th harmonic of 1560kHz is 14.040 Mhz
The 10th harmonic of 1400kHz is 14.000 Mhz
The 11th harmonic of 1280kHz is 14.080 Mhz
The 12th harmonic of 1170kHz is 14.040 Mhz
The 13th harmonic of 1080kHz is 14.040 Mhz
The 14th harmonic of 1000kHz is 14.000 Mhz
The 15th harmonic of 940kHz is 14.100 Mhz
The 18th harmonic of 780kHz is 14.040 Mhz
The 19th harmonic of 740kHz is 14.060 Mhz
The 20th harmonic of 700kHz is 14.000 Mhz
The 21st harmonic of 670kHz is 14.070 Mhz
I believe if you were hearing a direct harmonic of an AM
station, you should hear the carrier present on one of those
frequencies, assuming a standard 10kHz channel spacing.
If you are hearing a DJ, your best bet is to keep listening
for a station identification. Although, this will not
help if it is local rectification.
Chad WE9V
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