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	<id>http://wiki.hamtools.org/index.php?action=history&amp;feed=atom&amp;title=Trail-Friendly_Radio</id>
	<title>Trail-Friendly Radio - Revision history</title>
	<link rel="self" type="application/atom+xml" href="http://wiki.hamtools.org/index.php?action=history&amp;feed=atom&amp;title=Trail-Friendly_Radio"/>
	<link rel="alternate" type="text/html" href="http://wiki.hamtools.org/index.php?title=Trail-Friendly_Radio&amp;action=history"/>
	<updated>2026-05-02T01:58:22Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.38.1</generator>
	<entry>
		<id>http://wiki.hamtools.org/index.php?title=Trail-Friendly_Radio&amp;diff=2858&amp;oldid=prev</id>
		<title>Carlb at 04:58, 9 April 2009</title>
		<link rel="alternate" type="text/html" href="http://wiki.hamtools.org/index.php?title=Trail-Friendly_Radio&amp;diff=2858&amp;oldid=prev"/>
		<updated>2009-04-09T04:58:21Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:58, 8 April 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot;&gt;Line 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Field use of ham rigs is very popular.  Such operation includes car-camping, day-hiking, canoeing, and backpacking.  Because the operating location can be on a mountain or at a salt-water beach, and because the outdoors is more spacious than many back yards (allowing large, efficient antennas to be used), field sites are often superior to many home [[QTH|QTHs]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Field use of ham rigs is very popular.  Such operation includes car-camping, day-hiking, canoeing, and backpacking.  Because the operating location can be on a mountain or at a salt-water beach, and because the outdoors is more spacious than many back yards (allowing large, efficient antennas to be used), field sites are often superior to many home [[QTH|QTHs]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{operation}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Carlb</name></author>
	</entry>
	<entry>
		<id>http://wiki.hamtools.org/index.php?title=Trail-Friendly_Radio&amp;diff=987&amp;oldid=prev</id>
		<title>YL at 19:12, 29 March 2008</title>
		<link rel="alternate" type="text/html" href="http://wiki.hamtools.org/index.php?title=Trail-Friendly_Radio&amp;diff=987&amp;oldid=prev"/>
		<updated>2008-03-29T19:12:07Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:12, 29 March 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The term Trail-Friendly Radio, or TFR, was coined by the [[Adventure Radio Society|Adventure Radio Society (ARS)]] in 1996.  A TFR is a ham rig optimized for field use.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The term Trail-Friendly Radio, or TFR, was coined by the [[Adventure Radio Society|Adventure Radio Society (ARS)]] in 1996.  A TFR is a ham rig optimized for field use.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Typically, a well-designed TFR will have all of its controls and connections on the top, unlike desktop rigs that typically have connections at the back and controls at the front.  TFRs are intended to be used from operator&amp;#039;s lap, often while wearing gloves.  They must draw as little power as possible because they must typically are run off of batteries, and are thus nearly always [[QRP]] rigs.  TFRs are nearly always [[Modes#Continuous Wave (CW)|CW]] rigs, because carrying a computer along for digital work would be too heavy and [[Modes#Single-Sideband Modulation (SSB)|SSB]] operation is difficult at [[QRP]] power levels.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Typically, a well-designed TFR will have all of its controls and connections on the top, unlike desktop rigs that typically have connections at the back and controls at the front.  TFRs are intended to be used from &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;an &lt;/ins&gt;operator&amp;#039;s lap, often while wearing gloves.  They must draw as little power as possible because they must typically are run off of batteries, and are thus nearly always [[QRP]] rigs.  TFRs are nearly always [[Modes#Continuous Wave (CW)|CW]] rigs, because carrying a computer along for digital work would be too heavy and [[Modes#Single-Sideband Modulation (SSB)|SSB]] operation is difficult at [[QRP]] power levels.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Field use of ham rigs is very popular.  Such operation includes car-camping, day-hiking, canoeing, and backpacking.  Because the operating location can be on a mountain or at a salt-water beach, and because the outdoors is more spacious than many back yards (allowing large, efficient antennas to be used), field sites are often superior to many home [[QTH|QTHs]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Field use of ham rigs is very popular.  Such operation includes car-camping, day-hiking, canoeing, and backpacking.  Because the operating location can be on a mountain or at a salt-water beach, and because the outdoors is more spacious than many back yards (allowing large, efficient antennas to be used), field sites are often superior to many home [[QTH|QTHs]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>YL</name></author>
	</entry>
	<entry>
		<id>http://wiki.hamtools.org/index.php?title=Trail-Friendly_Radio&amp;diff=811&amp;oldid=prev</id>
		<title>YL: New page: The term Trail-Friendly Radio, or TFR, was coined by the Adventure Radio Society (ARS) in 1996.  A TFR is a ham rig optimized for field use.  Typically, a well-...</title>
		<link rel="alternate" type="text/html" href="http://wiki.hamtools.org/index.php?title=Trail-Friendly_Radio&amp;diff=811&amp;oldid=prev"/>
		<updated>2008-03-08T14:24:33Z</updated>

		<summary type="html">&lt;p&gt;New page: The term Trail-Friendly Radio, or TFR, was coined by the &lt;a href=&quot;/index.php?title=Adventure_Radio_Society&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Adventure Radio Society (page does not exist)&quot;&gt;Adventure Radio Society (ARS)&lt;/a&gt; in 1996.  A TFR is a ham rig optimized for field use.  Typically, a well-...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The term Trail-Friendly Radio, or TFR, was coined by the [[Adventure Radio Society|Adventure Radio Society (ARS)]] in 1996.  A TFR is a ham rig optimized for field use.&lt;br /&gt;
&lt;br /&gt;
Typically, a well-designed TFR will have all of its controls and connections on the top, unlike desktop rigs that typically have connections at the back and controls at the front.  TFRs are intended to be used from operator&amp;#039;s lap, often while wearing gloves.  They must draw as little power as possible because they must typically are run off of batteries, and are thus nearly always [[QRP]] rigs.  TFRs are nearly always [[Modes#Continuous Wave (CW)|CW]] rigs, because carrying a computer along for digital work would be too heavy and [[Modes#Single-Sideband Modulation (SSB)|SSB]] operation is difficult at [[QRP]] power levels.&lt;br /&gt;
&lt;br /&gt;
Field use of ham rigs is very popular.  Such operation includes car-camping, day-hiking, canoeing, and backpacking.  Because the operating location can be on a mountain or at a salt-water beach, and because the outdoors is more spacious than many back yards (allowing large, efficient antennas to be used), field sites are often superior to many home [[QTH|QTHs]].&lt;/div&gt;</summary>
		<author><name>YL</name></author>
	</entry>
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