Author Profile
Charles W. Rhodes

Charles W. Rhodes

Charles Rhodes is a consultant in the field of television broadcast technologies and planning.

  • Resources

    Out-of-Band Interference: Myth or Reality?

    September 19, 2016

    In the past, I have written about out-of-band (OOB) interference between ATSC signals in different bands: the low VHF band into a high VHF channel and a high VHF band ATSC into a UHF channel.

  • Resources

    Will Base Station Signals Interfere With TV Reception?

    June 24, 2016

    My colleague Linley Gumm and I recently conducted a series of measurements of the threshold protection (desired/undesired (D/U)) ratios required for modern ATSC receivers to reject interference from LTE signals radiated by base stations in the 600 MHz Band.

  • Expertise

    Assessing Post-Repack Channel Options

    September 11, 2015

    It’s a given that there is going to be considerable “channel shuffling” after the upcoming television broadcast spectrum auctions.

  • Expertise

    The FCC’s DTV Interference Dilemma

    November 07, 2014

    By now almost everyone knows the NAB has filed a lawsuit against the FCC over its spectrum auctions TV channel repack.

  • Expertise

    Turned Off TV Sets Can Jam Signals

    October 13, 2014

    My colleague Linley Gumm and I accidentally discovered when we turned our RF test bed on for a second day of testing of inter-band interference, all seven of our DTV receivers failed to come on. Some had much greater jamming than in our tests two days earlier.

  • Expertise

    How Will IBI Affect DTV Reception After Repacking?

    August 08, 2014

    Last month, we discussed third-order intermodulation products seldom covered in the technical literature: 2Fa + Fb, and 2Fb + Fa. We started with spectrum plots for two unmodulated carriers at the center of Ch. 9 (189 MHz) and Ch. 11 (201 MHz).

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