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APRS a different way
I recently installed APRS on my mobile rig.
I suppose I should note that I have no financial interest in any of the producers of software or equipment I've noted here. While most people go for a receiver - either using a hockey puck or a hendheld - connected to a tnc then to the radio, I already had a copy of Streets and Trips on my laptop, and the USB GPS receiver supplied by MicroSoft. I wanted to see if I could do something with that. A found a software called APRSPoint on the web, and purchased a copy. They said that it would work with Streets and Trips and my Kenwood D-700. They weren't completely clear on exactly how though. Links were provided to a site where someone had done this. This ham had used an external receiver connected directly to the D-700. I was hoping to run directly from the laptop. Emails to the writer of the software indicated that he wasn't sure himself if what I was trying to do would work. After messing with it a few days, I wasn't having a whole lot of joy. Then I decided to try something different. The D-700 uses a db9 serial cable to communicate with the laptop. General Packet work uses the Serial cable. So in anticipation that the unit was expecting the antenna to be hooked into a separate connecter when in APRS mode, I simply switched the D-700 over to Packet mode instead of APPRS. Success. I was squacking my position and reading everyone else's. Works like a charm, and the dynamic maps change with where I am. I then built a nice little laptop desk, and there ya go. I'm using the APRS/Laptop combination this weekend in a local MS-150 bike ride. We'll be having several GPS units barking position with the various mobile units (bike repair, sag wagon, ambulance, race director, and myself. I'll be behind the last rider, watching who is where, and there will be another APRS at HQ allowing them to see who is where also. Anyone else using APRS in a practical situation? - 73 de Mike KB3EIA - |
APRS a different way
On Wed, 18 Jul 2007 17:02:40 EDT, Michael Coslo wrote:
Anyone else using APRS in a practical situation? Our ARES/RACES team has been using APRS-equipped mobile units in practically every public service event which we have been supporting for the past few years - the MS-150 is a good example. We have also demonstrated its utility to the county-wide Fire and Rescue District command staff who were very impressed. The system is available as an accessory to commercial communication transceivers now. -- 73 de K2ASP - Phil Kane From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon e-mail: k2asp [at] arrl [dot] net |
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