Talk:Amateur radio direction finding

New article

I know this is an obscure sport in most of the English-speaking world, but it has lately seen some growing popularity in the United States, Australia, and the United Kingdom. I would appreciate any feedback on the article, especially from individuals for whom the entire subject is completely new. --Kharker 23:54, 2 December 2005 (UTC)

It is completely new to me, and I am very familiar with orienteering! The article looks very well-written and exhaustive; I'll try to go over it in more detail when I have the spare time. Thanks for bringing it to our attention on talk:Orienteering, otherwise I would not have discovered this singularly unique sport. Radagast 20:50, 4 December 2005 (UTC)

Based on off-wikipedia commentary, I've reduced the number of wikilinks to those that seem most relevant to the subject matter, and I've avoided repeating wikilinks unless there is a long distance between them in the article.--Kharker 18:33, 14 December 2005 (UTC)

I plan to submit this article as a Featured Article Candidate some time this week. Any comments before than are appreciated.--Kharker 15:49, 5 January 2006 (UTC)

Categories

I suggest to categorize this (and the variants) under radio navigation as well; radio direction finding uses the same principle whether the gear is mounted in a jumbo jet or carried by a runner. Maybe putting this, fox oring and Radio Orienteering in a Compact Area into a separate category, which could be a subcat of both radiosport and radio navigation? --Shaddack 01:09, 6 January 2006 (UTC)

My initial consideration of this was that they didn't really fit that category. Radio navigation is all about using radio beacons at known locations to determine your current location, whereas the sports are all about using your known location (through skilled use of map and compass) to locate the radio beacons at their unknown locations. But, I can see how anyone searching for information on radio navigation would also find these sports of interest, so I've gone ahead and added them to that category.--Kharker 17:01, 6 January 2006 (UTC)

Is the capiton bellow the picture a typo? It reads ..2 meter course.. shouldn't that be 2 kilometer at least? I know nothing about the subject so I will leave it to others to correct in case I am wrong.

No. The 2-meters refers to the wavelength of the radio signal used for that particular event, not the distance to be run. A 2-meter radio signal is approximately 145 megahertz. The other radio wavelength commonly used is 80 meters, approximately 3.5 megahertz. The two wavelength bands have rather different characteristics in terms of the way the signals propagate over terrain and the equipment used to locate the transmitters. For comparison, 2-meter signals are similar in character to FM and TV broadcasts and 80-meters similar to those used for AM standard broadcast. Of course, in ARDF, the transmitter power levels are MUCH lower than broadcast transmitters.

The actual distance run by a competitor in a championship course is typically on the order of six to ten kilometers.

--Jay

What a bizarre sport

Congrats to the writers on a job well done. JHMM13 (T | C) 02:37, 12 March 2006 (UTC)

I agree. Interesting article and interesting subject.--Theloniouszen 03:02, 12 March 2006 (UTC)

map

Very nice article on a very peculiar sport. However, can somebody fix the world map? For some reason the thumbnail shows the new multi-colored map but when I enlarged it it points to the one with green shades. BlueShirts 08:18, 12 March 2006 (UTC)

nevermind BlueShirts 01:58, 15 March 2006 (UTC)

Malicious

Someone left a "this sucks", so I removed it. Simply noting the edit.

Orienteering WikiProject

Hi Amateur radio direction finding,

Thanks for contributing to Wikipedia articles related to orienteering. If you are interested in orienteering, you might like to add WikiProject Orienteering to your watchlist (see Help:Watching pages).

Thanks,

Una Smith (talk) 19:07, 14 June 2008 (UTC)

FYI, Orienteering is getting a makeover. Also, Control point (orienteering) could use more information about radio transmitters used at control points to report data; those have potential use far beyond ARDF. Thanks! --Una Smith (talk) 01:45, 8 October 2008 (UTC)

I don't understand why this article is a part of orienteering portal/project. IOF doesn't have such discipline http://orienteering.org/i3/index.php?/iof2006/disciplines --Dnikitin (talk) 02:18, 19 January 2009 (UTC)

This is about all type of orienteering, not only those recognized by IOF. --Kslotte (talk) 19:45, 18 July 2009 (UTC)

Receivers

The article says the receiver antennas are directional, but what exactly does that mean? If the user gets a bearing on a transmitter, does the bearing have one or two heads (two heads 180 degrees apart)? --Una Smith (talk) 02:04, 8 October 2008 (UTC)

I took a stab at improving that section.--Kharker (talk) 21:54, 9 October 2008 (UTC)

Vast improvement. --Una Smith (talk) 01:18, 10 October 2008 (UTC)

It's a shame for WP, that I could find several pictures of receivers, but non of the for me wellknown electrical schemas. These are very important for well understanding the propagation of electromagnetic waves. 217.255.102.134 (talk) 12:49, 31 October 2014 (UTC)

GPS

The article now makes no mention of GPS, but I think that should go back in, with an explanation about the change in rules. Pro and con of GPS use is a frequently asked question! --Una Smith (talk) 01:18, 10 October 2008 (UTC)

Biographies

Could someone make some biographies of the most successful ARDF orienteers? --Kslotte (talk) 19:50, 18 July 2009 (UTC)

Smaller ARDF formats

At Club level, another form of ARDF is the "Fox hunt", where the "Fox" is hidden, and the other have to find them - as a small scale event, this normally uses the 2 metre band.

For 2 Metre band ARDF, the most common equipment, would be a handheld radio and an antenna such as the HB9CV (a 2 driven element antenna, using a phasing line to achieve a good rear null - the bearing is taken using the null).

Another system, frowned on by some, was the Datong DF1, a 4 element actively phased array and control unit that could be used while mobile. Ace of Risk (talk) 01:19, 18 November 2015 (UTC)

External links modified

Hello fellow Wikipedians,

I have just added archive links to 2 external links on Amateur radio direction finding. Please take a moment to review my edit. If necessary, add {{cbignore}} after the link to keep me from modifying it. Alternatively, you can add {{nobots|deny=InternetArchiveBot}} to keep me off the page altogether. I made the following changes:

• Added archive https://web.archive.org/20050217052355/http://ardf-r1.org:80/html/participation_of_societies.html to http://www.ardf-r1.org/html/participation_of_societies.html
• Added archive https://web.archive.org/20051026084927/http://www.jarl.or.jp:80/iaru-r3/12r3c/docs/009.doc to http://www.jarl.or.jp/iaru-r3/12r3c/docs/009.doc

When you have finished reviewing my changes, please set the checked parameter below to true to let others know.

Y An editor has reviewed this edit and fixed any errors that were found.

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—^{cyberbot II}_{Talk to my owner:Online} 13:14, 13 January 2016 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Amateur radio direction finding. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20051026084927/http://www.jarl.or.jp/iaru-r3/12r3c/docs/009.doc to http://www.jarl.or.jp/iaru-r3/12r3c/docs/009.doc

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 04:07, 1 December 2016 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified 2 external links on Amateur radio direction finding. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20050208044823/http://www.bfrr.net/bfrr.php to http://www.bfrr.net/bfrr.php
• Added archive https://web.archive.org/web/20090609113557/http://www.crsa.org.cn/english.php to http://www.crsa.org.cn/english.php

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 22:23, 19 May 2017 (UTC)

External links modified (January 2018)

Hello fellow Wikipedians,

I have just modified 2 external links on Amateur radio direction finding. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20110614155314/http://www.iaru-r1.org/index.php?option=com_mqcontacts&view=contact&id=5%3Afederation-of-radiosport-of-the-republic-of-armenia&catid=38%3Amember-societies&Itemid=83 to http://www.iaru-r1.org/index.php?option=com_mqcontacts&view=contact&id=5%3Afederation-of-radiosport-of-the-republic-of-armenia&catid=38%3Amember-societies&Itemid=83
• Added archive https://web.archive.org/web/20120308140115/http://www.rsgbshop.org/cgi-bin/sh000010.pl?REFPAGE=http:%2f%2fwww.rsgbshop.org%2f&WD=ardf&PN=Online_Catalogue_Operating___DX_13.html%23a8 to http://www.rsgbshop.org/cgi-bin/sh000010.pl?REFPAGE=http%3a%2f%2fwww.rsgbshop.org%2f&WD=ardf&PN=Online_Catalogue_Operating___DX_13.html%23a8

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 16:50, 24 January 2018 (UTC)