{"id":4012,"date":"2013-11-14T19:46:30","date_gmt":"2013-11-15T01:46:30","guid":{"rendered":"http:\/\/w0ep.us\/OM\/?p=4012"},"modified":"2013-11-14T19:46:30","modified_gmt":"2013-11-15T01:46:30","slug":"trimble-placer-gps-450","status":"publish","type":"post","link":"http:\/\/w0ep.us\/OM\/?p=4012","title":{"rendered":"Trimble Placer GPS 450"},"content":{"rendered":"

[Today’s run: none]<\/p>\n

In another on-line auction, I recently bid the minimum on a small pile of Trimble Placer GPS 450 vehicle tracking units.\u00a0 And they came via UPS today.<\/p>\n

These things are a one board system in a nice aluminum box.\u00a0 Organizations which have vehicles on the road can install these things, one in each vehicle.\u00a0 Then you connect it to a computer terminal or something similar and upload position info to the home office.<\/p>\n

Ham radio has a similar thing called APRS.\u00a0 Tracking is not all that APRS does, but it is one popular thing.\u00a0 You get a GPS and a 2-meter ham radio transmitter and a controller.\u00a0 The tracking info goes out over the 2-meter radio on a pre-assigned frequency.\u00a0 People put up digi-peaters\u00a0 (digital repeaters) which hear your tracking info and repeat it so more people can hear it.\u00a0 And I-Gates also put your tracking info on the internet.\u00a0 It works pretty good as long as you are in an area which has good coverage from digi-peaters.<\/p>\n

There is a Yahoo Group about how to set up these Trimble units to talk to the popular APRS controller devices.\u00a0 So, with one of these things and a controller\/transmitter, a GPS antenna and a 2-meter antenna and you are good to go.<\/p>\n

So far I have one of these units talking to my computer over a serial port but I don’t have a GPS antenna that will fit, so it can’t see the satellites.\u00a0 I will get a cheap antenna to try it out.\u00a0 I don’t know if I will do the whole APRS tracking thing.\u00a0 I’ll probably take most of them to the Jackson MS hamfest in January and sell them.<\/p>\n

Here’s a picture of the one I opened up:<\/p>\n

\"IMG_20131114_192740_982\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

[Today’s run: none] In another on-line auction, I recently bid the minimum on a small pile of Trimble Placer GPS 450 vehicle tracking units.\u00a0 And they came via UPS today. These things are a one board system in a nice aluminum box.\u00a0 Organizations which have vehicles on the road can install these things, one in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-4012","post","type-post","status-publish","format-standard","hentry","category-ham-radio"],"_links":{"self":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4012","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4012"}],"version-history":[{"count":1,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4012\/revisions"}],"predecessor-version":[{"id":4014,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4012\/revisions\/4014"}],"wp:attachment":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4012"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}