Bob,
Guess the APRS dilemma was like splitting the atom. The real use and the unintended use.
Could a system like the ISS be switched to a PSK31 or similar mode in the future? How well would PSK work with Doppler etc? I use it on HF, but was wondering if FM and satellites could be feasible. I believe this was mentioned as possibly being part of Fox's system.
73 Greg N3MVF
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bob Bruninga Sent: Monday, June 06, 2011 2:41 PM To: [email protected] Subject: [amsat-bb] Re: Broadcasting
but isn't 99.9% of all APRS broadcasting? You never really expect a response from anyone... Most of it is amateurs BROADCASTING their locations, no emergency traffic...
That is simply because too many people were completely mislead into thinking of APRS as a vehicle tracking system which is just wrong. It was nothing of the kind. It evolved from the 1980's desire to get away from one-on-one packet BBS's with NO human contact back to HUMAN-to-HUMAN live information exchange.
But then in the mid 1990's GPS came out and so did a lot of stupid trackers and now we are stuck with this light's-on-nobody-home scenario in a lot of people's minds. See how wrong these assumptions are: http://aprs.org/APRS-tactical.html
My focus in APRS has always been about live contact. That is why now all new APRS radios not only communicate the position of the other stations, but also their voice contact frequency in every packet. See: http://aprs.org/localinfo.html
Bob, Wb4APR
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