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As a Grand Rapids resident who knows quite well how to use a SDR, I'm going to choose a positive interpretation of this comment and assume you're referring to t
by ehntoo 11y ago
As a Grand Rapids resident who knows quite well how to use a SDR, I'm going to choose a positive interpretation of this comment and assume you're referring to the phenomena of "West Michigan nice", where hacking a public system for lulz would be absolutely unconscionable.
That being said, I'm actually rather tempted to at least figure out what the air interface is. The article mentions a 1200 baud modem - does a standard UHF/VHF voice channel have enough bandwidth to run PSK/FSK V.22 or V.23? That'd be quite a hack.
- JoeAltmaier 11y agoI meant that its far the heck away from everywhere and the population is low. Thus, a low incidence of griefers of any kind. But your take is good too.
- da_chicken 11y agoTwo hours from both Detroit and Chicago isn't far. A city of 180,000 isn't low; it's the largest city in the state behind Detroit.
- JoeAltmaier 11y agoAnd hey! In a list of US states by population, Michigan is #10! Who knew?! https://en.wikipedia.org/wiki/List_of_U.S._states_and_territories_by_population https://en.wikipedia.org/wiki/List_of_U.S._states_and_territ...
- jessaustin 11y agoAnyone who has ever been there? I guess unless you flew directly into UP... b^)
- organsnyder 11y agoIs there an airport up there?
- JoeAltmaier 11y agoHey I've been there, and remember endless empty foresty spaces, with some towns every hour or so.
- saalweachter 11y agoYep. The Northwest Territory is now home to over 46 million people. Just because it's less dense doesn't make it empty.
- kevin_thibedeau 11y agoVery likely it's Bell 202 AFSK. This is specifically designed to run at audio frequencies with 1200 Hz and 2200 Hz tones. You'd have to figure out how the higher protocol levels are implemented but it's probably going to fall within the realm of what is done with AX.25.