PSK31 Position Reporting

[NA7CW]

I've thought about getting into APRS on 2m as well as the 30m band. I do quite a bit of maritime mobile operation and would find the 30m band quite useful for transmitting APRS data, if it weren't so unreliable. I have heard that because of the noise and other propagation factors affecting 30m 300 baud packet, not all of the packet transmissions are received correctly.

Instead, why not come up with a program that takes the position, along with other data, from a GPS unit and put that into a PSK31 (or some other reliable mode...) transmission. A station on the receiving end could then post the GPS data from that transmission to a website, such as some of the existing APRS sites. The raw transmission data could also be posted just in case part of the transmission was hard to decode because of bad propagation or interference.

Anybody else have ideas? Any reasons why this wouldn't work too well? (Yes, it is slower than 300 baud, but it is probably more reliable.)

73,
KE7CPE

[N9DSJ]

Already being done with BPSK-63.
See http://wa8lmf.net/APRS_PSK63/index.htm or use a search engine for APRS Messenger.
In addition, Multipsk will run APRS in many modes, including PSK packet at 31, 63 or 250 baud.

73,
Bill N9DSJ

[NA7CW]

Already being done with BPSK-63.
See http://wa8lmf.net/APRS_PSK63/index.htm or use a search engine for APRS Messenger.
In addition, Multipsk will run APRS in many modes, including PSK packet at 31, 63 or 250 baud.

73,
Bill N9DSJ

Thanks. I've looked all over the place for something like this, but didn't try checking for PSK63 stuff. Maybe I'll give this a try, and if it doesn't seem to work very well, I'll keep looking.

73,
KE7CPE