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That wasn't the best wording on my part, sorry! User:Pegasus33 —Preceding undated comment added 04:26, 28 November 2009 (UTC).
...monitoring 198 kHz. This claim, I think, needs qualifying with an "allegedly" or two. See The Today programme. Don't know -- seems to me like an adroit terrorist group could provoke a nuclear holocaust simply by taking out Droitwich (or Daventry?). –Hajor 20:41, 18 May 2004 (UTC)
I don't know that Industry Canada has allowed "LowFER" in Canada - can anyone find a cite for this? I'll have to check the IC Web site, maybe it's there...-- Wtshymanski 13:32, 3 Jun 2005 (UTC)
I seem to recall reading an old issue of Practical Wireless from the 1970s which listed long wave broadcasts from Central Asia that were well into the 300's of kHz. Did these broadcasts exist? If anyone has firm information it would be an interesting addition to the article. Rugxulo 22:11, 19 January 2006 (UTC)
http://www.eurekalert.org/pub_releases/2006-02/su-rgf021706.php someone might want to re-evaluate the statement in the first paragraph of this article about how "longwave signals do not reflect or refract using the ionosphere."
The linked article says "Scientists detect these localized disturbances with VLF radio waves propagating along the Earth's surface. The ionosphere, like a metal, is a good electrical conductor. It acts as a guide for radio waves. That's why the Earth's curvature is no barrier, as VLF radio waves bounce off the ionosphere and can propagate to long distances around the globe, in the so-called Earth-ionosphere wave guide."
I realize that most lowfer xmissions use groundwave prop, but why would signals longer in wavelength than HF not also reflect from the ionosphere?
I've attempted to clarify the relationship between this article, and the LF and MF articles. The situation is still not very good, however; for example, information on longwave amateur bands is in LF, whereas information on LF commercial stations is in longwave. Some kind of merger seems to be in order, but I don't know the best way to handle that, given that the bands don't exactly match. — Johan the Ghost seance 10:25, 11 May 2006 (UTC)
This article claims that RTÉ off Clarkestown decreases its power at night. Now, as far as I can tell and remember (I live fairly close to the mast), in its Atlantic 252 days, Clarkestown operated 100kW daytime and 500kW nighttime. The station engineer I talked to also said the Radio Algeria transmitter went off-air over night. Obviously, even at the suggested power here, I'm not gonna be able to check the Radio Algeria transmissions without some very, very impressive sheilding :p There were reports back in the early 1990s of it being received in Brazil at night, which would suggest it had a clear channel.
Also, I've since been told that RTÉ now operate it at max. 300kW for simple cost saving reasons - they don't need a music quality signal across the entire UK; however would have thought that its still 100 day, 300 night. The site can actually operate at 600 but has no ITU clearance for such. -- Kiand 03:12, 27 June 2006 (UTC)
The Irish allocation is for 500Kw daytime and 100 Kw night (Clarkestown can theoretically operate at 600Kw but as far as Im aware never actually has). The reason for this is that Longwave (and Mediumwave) signals travel further distances at night (due to ionospheric reflections) leading to increaced interference problems with other countries. In order to mitigate this (somewhat) it is common practive (particularly for larger stations) to run on reduced power at night.
During the odd breakdown at Clarkestown Algeria makes it quite well into Ireland (especially along the South coast) many people mistake it for a French station (since Algeria has two official languages French and Arabic) Finland also has an allocation for 1500Kw on 252 but has never used any more than 100Kw and in recent years hasnt used it at all. 87.112.28.7 13:22, 4 March 2007 (UTC)
There needs to be a disambigulation page to differentiate between radio waves and other uses of "short wave" and "long wave" (such as those terms in Meteorology).
I've heard numerous AM stations simulcast in the LW band inside the US. This seems to contradict the claim that there is no LW broadcast band.
Article says: Instead, the D-layer of the ionosphere and the surface of the earth serve as a waveguide directing the signal[citation needed].
The following page describes in verbal and graphic way how the ionosphere and the earth's surface act as waveguides for longwave transmissions. http://www.weather.nps.navy.mil/~psguest/EMEO_online/module2/module_2_6.html
I am not sure if it's valid as a citation hence adding it here. I searched elsewhere with little success as how the ionosphere affects longwave radiation.
193.120.148.177 ( talk) 20:47, 21 March 2008 (UTC)
Why the ludicrous frequency range of 12 kHz to 1MHz? No one today used the term longwave for this band? Martin Hogbin ( talk) 12:39, 6 August 2008 (UTC)
I think this article should be called 'Long wave', or better still 'Long wave radio broadcasting band'.-- Harumphy ( talk) 15:23, 6 August 2008 (UTC)
This article needs information on the purpose of long wave radio, e.g. why it is preferred over MW, why it should be used when long antenna setups are required, etc. - Rolypolyman ( talk) 02:22, 2 October 2008 (UTC)
I added a photo of an old-style radio dial purely as art. Someone has added a caption which I feel takes the image too literally and is inappropriate. I propose to revert it. Comments? -- Harumphy ( talk) 19:13, 17 May 2009 (UTC)
Please expand this list and add coordinates of transmission sites. —Preceding unsigned comment added by 91.46.217.2 ( talk) 14:51, 15 January 2010 (UTC)
Was there ever a longwave broadcasting transmitter in Yafran or elsewhere in Libya? — Preceding unsigned comment added by 91.46.158.98 ( talk) 17:34, 11 September 2012 (UTC)
As a teenager in America, back in the 1960's, I wondered why with all its advantages there were no civilian broadcast on long-wave in the US and, as far as my research went, never had been. I remember reading that the big disadvantage of long-wave was that lightning almost anywhere on the globe caused static and since there are thunderstorms around the equator at pretty much any moment it was not suitable for broadcasting music (this was long before the days of talk radio). I had a multi-band receiver and I remember scanning the long-wave frequencies on a number of occasions and always picking up lighting type static even when I got none on medium wave (550-1600kHz). Could someone with more expertise address this and any other disadvantages to long-wave?
'In January 2014 Russia announced the imminent closure of most of its LW broadcasting stations'. – It happened on 9 January 2014 at '1 a.m.' (Moscow? time) according to the updated URL quoted at Note 8. Apparently one remains in service. — Preceding unsigned comment added by 2.25.168.232 ( talk) 19:37, 12 January 2014 (UTC)
The usage of Longwave radiation ( | talk | history | protect | delete | links | watch | logs | views) is under discussion, see talk:Outgoing longwave radiation -- 65.94.169.222 ( talk) 08:30, 3 August 2014 (UTC)
Long-wave carrier frequencies are exact multiples of 9 kHz; ranging from 153 to 279 kHz, except for a French language station Europe #1 in Germany. This station did keep to correctly spaced channels spacing for 4 months—only 7 years ago, and all Mongolian transmitters are spaced at 10 kHz.
I'm really not sure what most of this means. Does this "French language station Europe #1 in Germany" currently space its frequencies by something other than 9 kHz? What's the significance of "only 7 years ago"? No sources are linked to explain any of this. 108.171.128.174 ( talk) 09:52, 22 December 2016 (UTC)
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