[aprssig] What is APRS, really?

joe at dellabarba.com joe at dellabarba.com
Thu Nov 5 10:34:40 EST 2020

My boat currently had no APRS, I have AIS set up now on the antenna I was using for APRS.

What I had was an OT3m connected to an old Icom HT and a 30 watt 2 meter amplifier. The OT3m itself had sensors for battery voltage and temperature, there were no added sensors needed. Previous to that I had a Byonics tracker that did not have any telemetry and before that I had an ancient PK-12.

The OT3m was nice when it worked, but every few weeks it would lock up and need a hard boot. It eventually bricked itself.

If I go back to maritime APRS I will probably use a Byonics TT4. 

At the yacht club I have a PEET weather station feeding a Kenwood TM-281A through a Byonics WxTrack (TT3). The main  antenna was damaged and I am currently running on a lower antenna that has less range. You can see it by searching for CRYC on APRS.FI (https://aprs.fi/#!mt=roadmap <https://aprs.fi/#!mt=roadmap&z=11&call=a%2FCRYC&timerange=3600&tail=3600> &z=11&call=a%2FCRYC&timerange=3600&tail=3600) That setup has no batteries, it runs from 120 volts through a power supply.





From: aprssig <aprssig-bounces at lists.tapr.org> On Behalf Of joe at dellabarba.com
Sent: Wednesday, November 4, 2020 2:39 AM
To: 'TAPR APRS Mailing List' <aprssig at lists.tapr.org>
Subject: Re: [aprssig] What is APRS, really?


I used to have my boat on a mooring and I used APRS to keep track of the state of charge of the batteries and cabin temperature plus the obvious “is the boat still there” issue. It worked very well for me. I currently use APRS to get weather info from our yacht club that is so far out in the boonies we have no internet and that works well to.

What I failed at was two-way comms. I had a buddy wit APRS and sending text messages back and forth was erratic at best.

73 de N3HGB




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