Charles W. Rhodes
Latest articles by Charles W. Rhodes

Obstacles to DTV Reception
By Charles W. Rhodes published
You'd be amazed at what stands in the way between the viewer and the broadcast signal

SFN Reception Could be Problematic With ATSC
By Charles W. Rhodes published
Lagging echoes are more the serious problem

Laboratory Simulations of a Single Frequency Network
By Charles W. Rhodes published
There are no minimum performance specs in the FCC rules, and in fact, the FCC does not have authority to set them.

DTV Reception 24 7
By Charles W. Rhodes published
The first time I received an e-mail about DTV reception only during daylight hours, I was dubious.

FMI into the Low VHF Band
By Charles W. Rhodes published
I have serious concerns about the viability of such a broadcast service.

Spectrum Repacking Looms for TV Broadcasters
By Charles W. Rhodes published
Reducing the distances between transmitters on the same channel would increase DTV-DTV interference if each transmitter continued to operate at its present power and height of its antenna.

A New Kind of FMI on The Horizon?
By Charles W. Rhodes published
FMI now has three aspects.

Making 'Noise' About DTV Received Power
By Charles W. Rhodes published
As many DTV signals are radiated in the UHF band with more than this power, they enjoy some signal level margin within their coverage area.

Testing SFNs for ATSC Reception
By Charles W. Rhodes published
Could an SFN support our ATSC standard, or would we have to change our DTV standard to embrace COFDM and thereby obsolete millions of receivers?

Will SFNs Work in North America?
By Charles W. Rhodes published
The FCC suggests that by adopting a Single Frequency Network topology, the present minimum distances allowed between DTV transmitters could be substantially reduced.
Unlicensed Devices Could Compromise EAS
By Charles W. Rhodes published
Since my article in the Oct. 19, 2005 issue of TV Technology, ("Developing a 24/7 Digital EAS System"), some real progress has been made by the FCC in the matter of the Emergency Alert System.
Television Reception History Repeats Itself
By Charles W. Rhodes published
The January 1954 issue of "Proceedings of the Institute of Electrical and Electronic Engineers" was a special issue devoted entirely to the NTSC compatible color television system adopted by the FCC.

DTV Interference on VHF Channels 4–13
By Charles W. Rhodes published
Such second-order distortion products may be generated by strong local FM radio signals in the front end of DTV receivers and downconvertors.

Obstacles to DTV Reception(2)
By Charles W. Rhodes published
Our friend reminded us that the day we came was warm and sunny, and when it rains, that channel simply vanishes.

An Emergency Alert System for the Digital Era
By Charles W. Rhodes published
What is needed is an EAS which can alert the threatened populace while not scaring the entire nation. Our present EAS cannot do this, but a well designed Digital EAS could over our DTV channels.
Concern Over Interference Continues
By Charles W. Rhodes published
The saga of the FCC Laboratories Report, “Interference Rejection Thresholds of Consumer Digital Television Receivers Available in 2005 and 2006” continues.
More Examples of Interference From Unlicensed Devices
By Charles W. Rhodes published
The IEEE Consumer Electronics Society celebrated its 75th anniversary at the International Conference on Consumer Electronics in January, along with the Consumer Electronics Show in Las Vegas.

Improving a Digital EAS With the New ATSC Signal
By Charles W. Rhodes published
What a DTV signal can do that an analog signal such as NTSC could not do is to awaken sleeping persons believed by the local authorities to be threatened.
The Tide is Turning
By Charles W. Rhodes published
Now that the FCC has established its timetable for broadcasters to elect which channel to return, I believe these same broadcasters will seek to maximize their DTV facilities.
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