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Insert as appropriate.
J. D. Redding 18:37, 25 March 2007 (UTC)
Image:Atwaterkent.jpg is being used on this article. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in this Wikipedia article constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use.
Please go to the image description page and edit it to include a fair use rationale. Using one of the templates at Wikipedia:Fair use rationale guideline is an easy way to insure that your image is in compliance with Wikipedia policy, but remember that you must complete the template. Do not simply insert a blank template on an image page.
If there is other fair use media, consider checking that you have specified the fair use rationale on the other images used on this page. Note that any fair use images lacking such an explanation can be deleted one week after being tagged, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you.
BetacommandBot ( talk) 04:30, 12 February 2008 (UTC)
If we're listing "firsts", how 'bout first broadcast of a baseball or football game? 1st national broadcast of a sports event? 1st broadcast of a World Series? Just to start with.... TREKphiler 05:27, 5 July 2008 (UTC)
Tesla did not transmit any message or information using radio waves, he lit light bulbs by capacitive coupling. It is time for this crazy Tesla stuff to go. Martin Hogbin ( talk) 22:57, 7 April 2010 (UTC)
I totally agree. Similarly, references to Loomis and Stubblefield are unwarranted. Both were working with other forms of Wireless Communications (eg Static field, Magnetic field and Ground Conduction), but not with Electro-Magnetic Radiation (eg Radio), so have no place in an article on the "Timeline of Radio". Gutta Percha ( talk) 07:26, 16 October 2014 (UTC)
Loomis' kites were resonant antennas outside each other's nearfield zone: they employed EM waves, e.g. radio (not "static," but a spark-transmitter powered with naturally-occuring high-voltage, rather than HV from a transformer.) Tesla in 1896 transmitted over 30 miles from his NYC lab, to a receiver on a boat progressively moving along the Hudson, described in the Marconi case, 1916 legal deposition in LI Anderson book. Certainly NOT "lit bulbs by capacitive coupling" in the nearfield (Tesla insisted his long-distance transmission was EM surface-waves, others thought it was Hertz' EM space-waves.) But Tesla's 1986 experiments employed unmodulated waves, on/off detection, sent via a poorly-controlled high-frequency dynamo later dubbed the "Alexanderson Alternator," and detected with one of Tesla's mechanical-based receivers. (Really, it's time for all the irrational anti-Tesla stuff to go. Emotionally biased "believers" and "haters" are equally bad for WP. ) 128.95.172.170 ( talk) 08:53, 26 September 2020 (UTC)
Some passages rather clumsy and outright wrong:
"although some early radios used some type of amplification through electric current or battery"
How does a Battery Amplify? Presumably this is a clumsy reference to early Crystal Amplifiers (forerunner of the Transistor), Magnetic Amplifiers, Negative Resistance amplifiers, or the classic "Earpiece connected to Carbon-Mike" amplifier.
"Fessenden and Lee de Forest pioneered the invention of amplitude-modulated radio (AM radio), so more than one station can send signals (as opposed to spark-gap radio, where one transmitter covers the entire bandwidth of spectra)"
Messy and completely wrong. Early Spark (and Arc) was routinely filtered to give narrower bandwidth so multiple Spark stations could co-exist. And it wasn't AM, but Continuous Wave which finally solved the bandwidth problem. eg Spark is itself an amplitude modulated (AM) form of transmission.
Gutta Percha ( talk) 07:32, 16 October 2014 (UTC)
I propose that this article should be merged with the Invention of radio article. That covers essentially the same topic but in more detail. Anything of value her should be added to that article. Martin Hogbin ( talk) 10:21, 12 August 2014 (UTC)
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||
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Insert as appropriate.
J. D. Redding 18:37, 25 March 2007 (UTC)
Image:Atwaterkent.jpg is being used on this article. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in this Wikipedia article constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use.
Please go to the image description page and edit it to include a fair use rationale. Using one of the templates at Wikipedia:Fair use rationale guideline is an easy way to insure that your image is in compliance with Wikipedia policy, but remember that you must complete the template. Do not simply insert a blank template on an image page.
If there is other fair use media, consider checking that you have specified the fair use rationale on the other images used on this page. Note that any fair use images lacking such an explanation can be deleted one week after being tagged, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you.
BetacommandBot ( talk) 04:30, 12 February 2008 (UTC)
If we're listing "firsts", how 'bout first broadcast of a baseball or football game? 1st national broadcast of a sports event? 1st broadcast of a World Series? Just to start with.... TREKphiler 05:27, 5 July 2008 (UTC)
Tesla did not transmit any message or information using radio waves, he lit light bulbs by capacitive coupling. It is time for this crazy Tesla stuff to go. Martin Hogbin ( talk) 22:57, 7 April 2010 (UTC)
I totally agree. Similarly, references to Loomis and Stubblefield are unwarranted. Both were working with other forms of Wireless Communications (eg Static field, Magnetic field and Ground Conduction), but not with Electro-Magnetic Radiation (eg Radio), so have no place in an article on the "Timeline of Radio". Gutta Percha ( talk) 07:26, 16 October 2014 (UTC)
Loomis' kites were resonant antennas outside each other's nearfield zone: they employed EM waves, e.g. radio (not "static," but a spark-transmitter powered with naturally-occuring high-voltage, rather than HV from a transformer.) Tesla in 1896 transmitted over 30 miles from his NYC lab, to a receiver on a boat progressively moving along the Hudson, described in the Marconi case, 1916 legal deposition in LI Anderson book. Certainly NOT "lit bulbs by capacitive coupling" in the nearfield (Tesla insisted his long-distance transmission was EM surface-waves, others thought it was Hertz' EM space-waves.) But Tesla's 1986 experiments employed unmodulated waves, on/off detection, sent via a poorly-controlled high-frequency dynamo later dubbed the "Alexanderson Alternator," and detected with one of Tesla's mechanical-based receivers. (Really, it's time for all the irrational anti-Tesla stuff to go. Emotionally biased "believers" and "haters" are equally bad for WP. ) 128.95.172.170 ( talk) 08:53, 26 September 2020 (UTC)
Some passages rather clumsy and outright wrong:
"although some early radios used some type of amplification through electric current or battery"
How does a Battery Amplify? Presumably this is a clumsy reference to early Crystal Amplifiers (forerunner of the Transistor), Magnetic Amplifiers, Negative Resistance amplifiers, or the classic "Earpiece connected to Carbon-Mike" amplifier.
"Fessenden and Lee de Forest pioneered the invention of amplitude-modulated radio (AM radio), so more than one station can send signals (as opposed to spark-gap radio, where one transmitter covers the entire bandwidth of spectra)"
Messy and completely wrong. Early Spark (and Arc) was routinely filtered to give narrower bandwidth so multiple Spark stations could co-exist. And it wasn't AM, but Continuous Wave which finally solved the bandwidth problem. eg Spark is itself an amplitude modulated (AM) form of transmission.
Gutta Percha ( talk) 07:32, 16 October 2014 (UTC)
I propose that this article should be merged with the Invention of radio article. That covers essentially the same topic but in more detail. Anything of value her should be added to that article. Martin Hogbin ( talk) 10:21, 12 August 2014 (UTC)