The meters use low-frequency radio signals like those that allow someone to use a smart phone, listen to the radio or watch TV. The meter sends data to utility poles’ access points, which send a ...

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 ...