Hi Paul,
An AM radio transmitter transmits a central carrier signal and two sidebands. The sidebands contain all of the intelligence in the transmitted signal but the carrier signal uses a large part of the transmitters power and is required by the AM receiver as a reference to demodulate the...
Hi again Paul,
According to what I can find, your 718 has general coverage receive down to 30 Khz. I should think there would be an AM broadcast station near you that would serve as a frequency reference. A talk radio station would be easier because there would likely be brief periods of time...
Hi Paul,
I'm not familiar with the 718 but if it covers 15 Mhz, you could "zero beat" the 15 Mhz WWV transmission in either USB or LSB mode and see how close your display reads to 15Mhz. That might tell you which of the two meters or your radio is most accurate. If you can't tune to 15 Mhz you...
Years ago, I saw a demonstration of a metal plate (probably aluminum or something else non ferrous) which was floating on a magnetic field. Normally, the plate was relatively cool but if it was forced deeper into the magnetic field, it would heat up. I think the magnetic field was made using a...