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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Audio/Video/Electronics Forum [GEN 1]
Dual Band / Ham / 2-Way / Amateur Radio Install (and FRS/GMRS mod)
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<blockquote data-quote="BigJ" data-source="post: 110102" data-attributes="member: 62"><p>Just a quick follow up to this. </p><p></p><p>The radio I chose happens to come in two flavors; a USA version and an international, aka "General" version. Turns out, to convert from the USA version to the general version is very easy. Its literally a matter of removing two teany tiny grain-of-sand sized resisters off a jumper board. A hot low wattage soldering iron with a needle tip on it, and a steady hand, gets the job done nicely:</p><p></p><p><img src="http://www.kb2ljj.com/data/icom/ic-208h_trx.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><a href="http://www.kb2ljj.com/data/icom/ic-208h.htm" target="_blank">http://www.kb2ljj.com/data/icom/ic-208h.htm</a></p><p></p><p>So what's the point? It bugs me that I have this spiffy nifty nice new radio beautifully installed... and I most likely wont be able to use it to communicate with my buddies in the desert who like their FRS radios. </p><p></p><p>After a little investigating, I discovered that FRS "channels" happen to be shorthand for frequencies in the 70cm band. Specifically:</p><p>Radio Service - Frequency Mhz - Channel - Notes</p><p>FRS,GMRS - 462.5625 - 1 - .5w max</p><p>FRS,GMRS - 462.5875 - 2 - .5w max</p><p>FRS,GMRS - 462.6125 - 3 - .5w max</p><p>FRS,GMRS - 462.6375 - 4 - .5w max</p><p>FRS,GMRS - 462.6625 - 5 - .5w max</p><p>FRS,GMRS - 462.6875 - 6 - .5w max</p><p>FRS,GMRS - 462.7125 - 7 - .5w max</p><p>FRS,GMRS - 467.5625 - 8 - .5w max</p><p>FRS,GMRS - 467.5875 - 9 - .5w max</p><p>FRS,GMRS - 467.6125 - 10 - .5w max</p><p>FRS,GMRS - 467.6375 - 11 - .5w max</p><p>FRS,GMRS - 467.6625 - 12 - .5w max</p><p>FRS,GMRS - 467.6875 - 13 - .5w max</p><p>FRS,GMRS - 467.7125 - 14 - .5w max</p><p>GMRS - 462.55 - 15 - 5w max</p><p>GMRS - 462.575 - 16 - 5w max</p><p>GMRS - 462.6 - 17 - 5w max</p><p>GMRS - 462.625 - 18 - 5w max</p><p>GMRS - 462.65 - 19 - 5w max</p><p>GMRS - 462.675 - 20 - 5w max</p><p>GMRS - 462.7 - 21 - 5w max</p><p>GMRS - 462.725 - 22 - 5w max</p><p></p><p>And, it also turns out that FRS "quiet" or "privacy" codes are nothing more than tone offsets. Specifically:</p><p></p><p>[ATTACH=full]182805[/ATTACH]</p><p></p><p>So, it looks like I can hear my buddies who are on FRS... I just can't talk with them :doh:</p><p></p><p>But waittaminute... whats the deal with that general version of my radio again?</p><p></p><p>[ATTACH=full]182806[/ATTACH]</p><p></p><p>Well well... lookie there... If I were to mod my radio like suggested above and turn it into a "General" version...</p><p></p><p>Now I need to point out that technically speaking its "illegal" to broadcast on FRS at a power over 500 miliwatts or on GMRS at a power over 5watts, and in both cases its "illegal" to use anything but a handheld (HT) unit to do it. And, of course, I would never think of doing something so heinous; my ICOM wont broadcast at anything less than 5watt... 10x the max power allowed in the US on FRS frequencies, and obviously its not a handheld, so I would never think of using for these purposes obviously. All this is just academic of course you understand.</p><p></p><p>Just sayin...</p></blockquote><p></p>
[QUOTE="BigJ, post: 110102, member: 62"] Just a quick follow up to this. The radio I chose happens to come in two flavors; a USA version and an international, aka "General" version. Turns out, to convert from the USA version to the general version is very easy. Its literally a matter of removing two teany tiny grain-of-sand sized resisters off a jumper board. A hot low wattage soldering iron with a needle tip on it, and a steady hand, gets the job done nicely: [IMG]http://www.kb2ljj.com/data/icom/ic-208h_trx.jpg[/IMG] [URL]http://www.kb2ljj.com/data/icom/ic-208h.htm[/URL] So what's the point? It bugs me that I have this spiffy nifty nice new radio beautifully installed... and I most likely wont be able to use it to communicate with my buddies in the desert who like their FRS radios. After a little investigating, I discovered that FRS "channels" happen to be shorthand for frequencies in the 70cm band. Specifically: Radio Service - Frequency Mhz - Channel - Notes FRS,GMRS - 462.5625 - 1 - .5w max FRS,GMRS - 462.5875 - 2 - .5w max FRS,GMRS - 462.6125 - 3 - .5w max FRS,GMRS - 462.6375 - 4 - .5w max FRS,GMRS - 462.6625 - 5 - .5w max FRS,GMRS - 462.6875 - 6 - .5w max FRS,GMRS - 462.7125 - 7 - .5w max FRS,GMRS - 467.5625 - 8 - .5w max FRS,GMRS - 467.5875 - 9 - .5w max FRS,GMRS - 467.6125 - 10 - .5w max FRS,GMRS - 467.6375 - 11 - .5w max FRS,GMRS - 467.6625 - 12 - .5w max FRS,GMRS - 467.6875 - 13 - .5w max FRS,GMRS - 467.7125 - 14 - .5w max GMRS - 462.55 - 15 - 5w max GMRS - 462.575 - 16 - 5w max GMRS - 462.6 - 17 - 5w max GMRS - 462.625 - 18 - 5w max GMRS - 462.65 - 19 - 5w max GMRS - 462.675 - 20 - 5w max GMRS - 462.7 - 21 - 5w max GMRS - 462.725 - 22 - 5w max And, it also turns out that FRS "quiet" or "privacy" codes are nothing more than tone offsets. Specifically: [ATTACH=full]182805[/ATTACH] So, it looks like I can hear my buddies who are on FRS... I just can't talk with them :doh: But waittaminute... whats the deal with that general version of my radio again? [ATTACH=full]182806[/ATTACH] Well well... lookie there... If I were to mod my radio like suggested above and turn it into a "General" version... Now I need to point out that technically speaking its "illegal" to broadcast on FRS at a power over 500 miliwatts or on GMRS at a power over 5watts, and in both cases its "illegal" to use anything but a handheld (HT) unit to do it. And, of course, I would never think of doing something so heinous; my ICOM wont broadcast at anything less than 5watt... 10x the max power allowed in the US on FRS frequencies, and obviously its not a handheld, so I would never think of using for these purposes obviously. All this is just academic of course you understand. Just sayin... [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Audio/Video/Electronics Forum [GEN 1]
Dual Band / Ham / 2-Way / Amateur Radio Install (and FRS/GMRS mod)
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