Talk:Advanced Extremely High Frequency

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State things clearly and reasonably ...[edit]

For example, there is nothing cast in concrete about the number 65 degrees, and to state so is flatly contrary to reality. These latitudes in satellite communications vary a good deal depending on several salient factors. These include the fact that aircraft can use the satellites farther north and farther south than either ships or ground forces can. This is because aircraft get a better line-of-sight to geostationary satellites. Furthermore, that latitude will vary - no doubt about it - depending on the weather because rainfall attenuates the radio waves in the microwave bands in the SHF and EHF bands, with the higher the frequency, the worse the attenuation is.

The available coverage for communications might be 69 degrees today, 66 degrees tomorrow, and 71 degrees the day after that, and it varies from west-to-east depending on where it is raining or not. The Department of Defense always specifies such things as their minima or maxima. Hence, the contracts will say something like "at least 65 degrees", and to insure that this is so, the design engineers always insure that it will work at higher or lower latitudes that that, given good weather conditions, etc. This is something that everyone needs to be aware of.

For another example, when an electronic device is specified to work over a temperature range of - 55 celsius to 100 celsiud, the design engineers must always exceed this in order to insure that the -55 t0 100 degree range is always satisfied. 98.67.97.108 (talk) 18:33, 14 August 2010 (UTC)[reply]

A poorly-chosen title:" Advanced Extremely High Frequency"[edit]

A poorly-chosen title: "Advanced Extremely High Frequency".
This article needs to be titled "Advanced Extremely High Frequency satellite" or "Advanced Extremely High Frequency satellite system" because in this usage " "Advanced Extremely High Frequency" is an adjective, and it could apply to just about anything electronic:
radar system, communications system, sensor system, a computer with an extremely-fact clock rate.

For an example of the need for precision: "TDRS" stand for "Tracking and Data Relay Satellite" and TDRSS stands for "Tracking and Data Relay Satellite System". The first one is just the satellite, but the second one is a constellation of satellites combined with their two ground stations in Cloudcroft, New Mexico, and the additional communications equipment that is installed in the users of the system.

It does not pay to be vague and sloppy about such things. 18:43, 14 August 2010 (UTC) —Preceding unsigned comment added by 98.67.97.108 (talk)

This is not just the title, it's not sloppy on the editors part, that is in fact the name of the program. Call the Joint Chiefs of Staff and correct it there... ~~ — Preceding unsigned comment added by Brett Buck (talk • contribs) 07:02, 6 December 2012 (UTC)[reply]

The sentence "The program was restructured in October 2004, when the National Security Agency did not deliver key cryptographic equipment to the payload contractor in time to meet the launch schedule.[4]" at the end of the first paragraph in the body of the article implies, falsely, that late delivery of cryptographic equipment by the NSA was responsible for the four year delay in the launch schedule for the system. The cited reference [4] clearly states that the initial restructuring of the program was necessary because of late delivery of crypto equipment AND replacement of defective parts unrelated to that delivery. The cited reference also clearly states that restructuring of the program only accounts for the first year of the four years of delays suffered by the program. Unmentioned in the article are major program delays that resulted from the late delivery of software subsystems by the system prime contractor and a series of engineer changes that occurred during system development. inclusion of this sentence in without such context appears to be spin by a the Air Force, attempting to deflect blame for delays and cost overruns which are typical of their satellite development programs. — Preceding unsigned comment added by 68.50.234.19 (talk) 01:09, 3 March 2014 (UTC)[reply]

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