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Fri Jul 16 12:45:06 UTC 2010
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Give these tracks a look at for some 6m and 2m activity Dual band set ups. Truck 6m APRS=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 2m APRS =A0 KA2ZEV-5=A0=A0=A0=A0=A0=A0 (XTR)=A0 KA2ZEV-9 Car KA2ZEV-6=A0=A0=A0=A0=A0=A0 (SY1)=A0 KA2ZEV-8=20 Car K7BC-5=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 K7BC-= 4 K4MDD-5=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 K4MDD-9 It's cool to have a clear channel to play on.=20 For example the 6m unit in the truck is set to transmit every 30 seconds an= d is not interfering with anybody. Most of these are 'dual band' set ups. In the case of my car, the two radios are diplexed to a common antenna.=20 The inexpensive MJF 6 and 2m dual band antenna, works great. My truck is set up with separate antennas. The units share the data take from a single GPS puck. What I have been doing is using surplus (aka cheap) radios and converting t= hem to data service.=20 I saw no good reason to take a special built Ham Only radio and tie it up f= or such a job. On the other hand if you can get a cheap surplus two way radio and learn ho= w they are made,=20 You can make highly effective and reliable gear. One of the problems I have found is the way hams as a community build gear.= =20 Some guys clearly make equipment for the ages.=20 They are wonderful craftsman.=20 Some guys stuff is held together with duct tape and clip leads. Not good. I wrote some how to articles to make this process more reliable. Photos and= text. Some of the radios I have converted for clients have over 25k recorded hits= into the system. I get Midland LMR units because they are cheap.=20 Manuals, programing tools and software are available. I also use the Tiny Track 3.=20 Been learning how to use the Open Tracker as well. Since I got laid off, I no longer have access to the physical printer that = I made some very useful custom plastic parts, but that can be worked around= with a steady hand and a rotary tool. Here are some article links on how to do it. This is to convert the Midland XTR series radio.=20 In this case a trunk mount radio unit lacking it's control head.=20 I call these Orphans for that reason.=20 The host radio can be had in ebay for less money.=20 Usually between ten and twenty bucks For a premium radio, people that is cheap! When you work with this series of radios, it hardly matters if it's 2m or 6= m. All the interface systems are identical right down to the wire lengths and = colors. http://www.flickr.com/photos/90108848@N00/sets/72157623358841596/ If you look close, I don't use the audio section for much.=20 If Bob's 'Voice Alert' system becomes more common it can be used for that. The Carrier Detect is done by making use of the 'busy light' circuit in the= radio.=20 This works very well. The mods do not work alone, you need an APRS module.=20 This is my conversion for the TT3. I am not ready to do the same thing yet = for the Open Tracker. Not enough experience with that control unit yet. http://www.flickr.com/photos/90108848@N00/sets/72157618636275285/ This is the article on how to make up an inexpensive GPS sensor. http://www.flickr.com/photos/90108848@N00/sets/72157621651452727/ The down side to this item is a fairly short cable of about 6 feet. This is how to do it if you have an older SY 1 series Midland radio. http://www.flickr.com/photos/90108848@N00/sets/72157614029132742/ This is the most recent project and the article is not finished yet. A client wanted a voice and data radio. So with the switch he can have it. http://www.flickr.com/photos/90108848@N00/sets/72157624468656025/ Still need to scan in the 'sketch' and some photos of the data load out. Hope this helps. Mike Chisena Herndon VA KA2ZEV I "You are, what you do, when it counts" =20 =0AThe Masso =0A =0A"Gravity, the quickest way down" =20 =0AMayor John Almafi =0A =0A"You ever drop an egg, and on the floor you see it break?=20 =0A =0AYou go and get a mop so you can clean up your mistake. =20 =0A =0ABut did you ever stop to ponder why we know it's true?=20 =0A =0AIf you drop a broken egg you will not get an egg that's new?"=20 =0A =0AMC Hawking --0-771308610-1280755136=:51690 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable <table cellspacing=3D"0" cellpadding=3D"0" border=3D"0" ><tr><td valign=3D"= top" style=3D"font: inherit;">Bob and company,<br><br>Thanks for the plug o= n the 6m APRS project.<br>Here are some updates.<br><br>The local node is N= V4FM-6. <br>It's up on the same building in down town Fairfax Virginia that= the club 146.79/r is on. <br>It covers well. <br>That unit talks to a stat= ion at Bruce K7BC's home. <br>From there the data joins the Internet.<br><b= r>Give these tracks a look at for some 6m and 2m activity<br><br>Dual band = set ups.<br>Truck<br><br>6m APRS &= nbsp; 2m APRS<br>&nbs= p;<br>KA2ZEV-5 (XTR) KA2ZEV-9<br>= <br>Car<br>KA2ZEV-6 (SY1) KA2ZEV-= 8 <br><br>Car<br>K7BC-5 &nbs= p; K7BC-4<br><br>K4MDD-5  = ; K4MDD-9<br><br>It's= cool to have a clear channel to play on. <br><br>For example the 6m unit i= n the truck is set to transmit every 30 seconds and is not interfering with= anybody.<br><br>Most of these are 'dual band' set ups.<br><br>In the case = of my car, the two radios are diplexed to a common antenna. <br>The inexpen= sive MJF 6 and 2m dual band antenna, works great.<br><br>My truck is set up= with separate antennas.<br><br>The units share the data take from a single= GPS puck.<br><br>What I have been doing is using surplus (aka cheap) radio= s and converting them to data service. <br><br>I saw no good reason to take= a special built Ham Only radio and tie it up for such a job.<br><br>On the= other hand if you can get a cheap surplus two way radio and learn how they= are made, <br><br>You can make highly effective and reliable gear.<br><br>One of the problems I have found is the way hams as a communi= ty build gear. <br>Some guys clearly make equipment for the ages. <br>They = are wonderful craftsman. <br>Some guys stuff is held together with duct tap= e and clip leads. Not good.<br><br>I wrote some how to articles to make thi= s process more reliable. Photos and text.<br><br>Some of the radios I have = converted for clients have over 25k recorded hits into the system.<br><br>I= get Midland LMR units because they are cheap. <br>Manuals, programing tool= s and software are available.<br><br>I also use the Tiny Track 3. <br>Been = learning how to use the Open Tracker as well.<br><br>Since I got laid off, = I no longer have access to the physical printer that I made some very usefu= l custom plastic parts, but that can be worked around with a steady hand an= d a rotary tool.<br><br>Here are some article links on how to do it.<br><br= >This is to convert the Midland XTR series radio. <br>In this case a trunk mount radio unit lacking it's control head. <br>I call these Orphans= for that reason. <br><br>The host radio can be had in ebay for less money.= <br>Usually between ten and twenty bucks<br>For a premium radio, people th= at is cheap!<br><br>When you work with this series of radios, it hardly mat= ters if it's 2m or 6m.<br>All the interface systems are identical right dow= n to the wire lengths and colors.<br><br>http://www.flickr.com/photos/90108= 848 at N00/sets/72157623358841596/<br><br>If you look close, I don't use the a= udio section for much. <br><br>If Bob's 'Voice Alert' system becomes more c= ommon it can be used for that.<br><br>The Carrier Detect is done by making = use of the 'busy light' circuit in the radio. <br>This works very well.<br>= <br>The mods do not work alone, you need an APRS module. <br>This is my con= version for the TT3. I am not ready to do the same thing yet for the Open T= racker. Not enough experience with that control unit yet.<br><br>http://www.flickr.com/photos/90108848@N00/sets/721576186362752= 85/<br><br>This is the article on how to make up an inexpensive GPS sensor.= <br><br>http://www.flickr.com/photos/90108848@N00/sets/72157621651452727/<b= r><br>The down side to this item is a fairly short cable of about 6 feet.<b= r><br>This is how to do it if you have an older SY 1 series Midland radio.<= br><br>http://www.flickr.com/photos/90108848@N00/sets/72157614029132742/<br= ><br>This is the most recent project and the article is not finished yet.<b= r>A client wanted a voice and data radio. So with the switch he can have it= .<br>http://www.flickr.com/photos/90108848@N00/sets/72157624468656025/<br>S= till need to scan in the 'sketch' and some photos of the data load out.<br>= <br>Hope this helps.<br>Mike <span>Chisena</span><br>Herndon VA<br>KA2ZEV<b= r><br><br><br><br><br>I<br>"You are, what you do, when it counts" <br>=0AT= he Masso<br>=0A<br>=0A"Gravity, the quickest way down" <br>=0AMayor John A= lmafi<br>=0A<br>=0A"You ever drop an egg, and on the floor you see it break= ? <br>=0A<br>=0AYou go and get a mop so you can clean up your mistake. <br= >=0A<br>=0ABut did you ever stop to ponder why we know it's true? <br>=0A<b= r>=0AIf you drop a broken egg you will not get an egg that's new?" <br>=0A<= br>=0AMC Hawking</td></tr></table> --0-771308610-1280755136=:51690--
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