-------------- Original message --------------
From: Hopperdhh@aol.com
I have heard that when you are at altitude, you hit so many cell towers at once that you confuse the system, causing it to lock you out. Not sure if this is a fact, though.I used to have a packet BBS (bulletin board system) back in the early 90's too, but haven't kept up with what's going on lately.Dan HopperRV-7AHam call K9WEKIn a message dated 1/13/2007 7:08:34 PM Eastern Standard Time, bobperk@bellsouth.net writes:--> RV-List message posted by: "Bob Perkinson" <bobperk@bellsouth.net>
Ham radio operators were using digital packet repeaters back in the 80"s.
There was and might still be a network (SEDAN) (South East Digital Amateur's
Network) set up where on 2m you could communicate with another operator in
south FL. from middle TN. Takes very little to setup a node. I had several
set up in the Gallatin, TN area on different 2m frequencies that cross
linked with each other through an old 8088 computer. The Technology is
there. As far as a cell signal the antenna are more than likely designed to
radiate horizontally.
Bob Perkinson
Hendersonville, TN.
RV9 N658RP Reserved
If nothing changes
Nothing changes
________________________________ Message 3 _____________________________________ Time: 07:06:41 AM PST US Subject: Re: RV-List: Great Idea that's time has come? From: alan@reichertech.com APRS is the "Automatic Packet Reporting System", sometimes erroneously calle the "Automatic Position Reporting System", but it does a lot more than just position. The position reporting implementation uses GPS messages fed to what is called a Terminal Node Controller which, essentially, takes the GPS data, formulates a proper APRS digital message, and punts it to a 2-meter radio for transmission. Once over the airwaves (and assuming good coverage), another station either receives the info and routes it to an internet server, or repeats it on the same frequency for broader coverage. The map on the internet is www.findu.com. Here is the current information on my own APRS station: http://www.findu.com/cgi-bin/find.cgi?call=KG4TVQ-1 The portion of the string "KG4TVQ" is my amateur radio ID. the "-1" is the ID of the APRS station I'm using. It is optional, but most hams use it to differentiate different APRS stations (one in each car, one in the house, etc). If I recall correctly, this ID can be anything between 1 and 15. I've just purchased some equipment to set up an APRS system to carry with me in my Skylane, consisting of a small GPS received by Deluo, a small TNC designed specifically for tracking, and a 2-meter handheld I have. There is a fellow in the DC area that had been doing this for a while. He flies AND sails with an APRS system. He does not have any recent flight data, but here is his web page on the subject: http://www.dellabarba.com/flying/tracking/tracking.html Remember, you need to be a licenses ham to do this. If you want to pursue that, check into http://www.arrl.org for licensing information. Probably more than you wanted to know.... - Alan On Sun, January 14, 2007 2:57 am, RV-List Digest Server wrote: > > > Time: 11:49:34 AM PST US > From: "Bill Boyd"