Simon the locating software that runs with GPS is it called APRS by any chance, my RAYNET group are just getting kitted out with it..
Similar but different. From what I gather, "ordinary" APRS is pretty simple. The little group of electronics and computing engineers that are working on this system do the various parts of stuff for their day jobs (Neil who bought your old rig for instance, used to be heavily involved with GPS and inertial guidance systems at work - at a level that required CIA clearance because of the technology involved).
take it response groups use
the higher frequency bands.
NOt specifically but it does seem to work that way. 70cm and m are the most practical for mobile operation and the repeater network is better too, though DX range is lower. But 4x4 Response is mainly looking for short range at the scene comms. Many groups use CB and PMR, YL use all 3, not everyone has HAM and PMR is often enough, but the flexibility to do more is welcome.
so is an 8900 the sort of all singing rig i could try once got my foundation licence.
Not really but its pretty good rig. As JT says the 2 radios in one is good, I don't use mine as a pepeater like him but its handy for monitoring 2 frequencies. Sky's the limit really - its all down to how much you might want to spend.
As JT says get in touch with LAM. Lee and co up there will see you right, plenty of advice and no pressure to buy. But get in touch with a club and get your license first. The little bit f experience you get there should help you decide what you want in a radio.
License difficulty depends on your background. I found the Foundation quite simple, no real learning bar the HAM specific stuff like call sign nomenclature, but you have to do a practical session, nothing too taxing. Intermediate took a bit of work but just a few nights with the booklet, and again there's a practical session but pretty simple stuff really. The advanced however I've stalled at for now, going to take some serious revision for that and I've not put the time aside at the moment. That said I don't feel the need to do it, but just fancy it sometime. I know a couple of people who walked into it and passed with no tuition just a bit of revision from the book - but electronics is their day job. I only took physics as far as A level and that was some time ago now.