Smart meters provide detailed information so a customer can make choices about how and when to use energy and save money, ...

The sound level meter, however, does not take into account the predominant frequency region of the noise ... and C weighting networks (from Handbook of Noise Measurement, General Radio, 1963, p. 9, ...

So he decided to change the radio over to work on the 6 meter band, instead ... leaving just the parts that dealt with the intermediate frequency at 7.8 MHz. Even the transmitter generates ...

Amateur radio operators and shortwave listeners have a common enemy: QRM, which is ham-speak for radio frequency interference ... was spewing RFI over a 200-meter radius; a dissection revealed ...

Solar CMEs and SEP events can be accompanied by radio bursts at low frequencies, particularly so-called Type ... The largest boulders are expected to be on the order of 30 meters. Extrapolating from ...