Re: OT

On 2026/8/20 11:31:53, Carlos E. R. wrote:
> On 2026-08-20 02:16, The Natural Philosopher wrote:
[]
>> +1. I use Tomtom GO  and if I had a bigger phone Id keep more maps

That sounds like TomTom is an "app" on your 'phone; I didn't know they
did an app., I only know the name as one of the bigger names in
standalone devices. (I suppose if you can't beat 'em, join 'em.)

>> It does not AFAICT use Internet connectivity to get its latest reports 
>> on speed cameras and traffic jams, but get them somehow it does.
> 
> Depends on the model. Some have an internal SIM card and a slow and 
> cheap internet connection. Some use a BT connection to a phone to get 
> slow internet. Some connect via WiFI to a hotspot in the car. And some 
> use FM radio, or a cable to the car FM radio, because some stations 
> transmit those reports in background, somehow. This last method I have 
> not experienced.
> 
Well, some fixed maps have _some_ speed camera, but of course can't
track new ones, and certainly can't include roadworks, traffic, and the
like, so the device must be getting it from _some_where; I think I've
heard of the FM subcarrier thing too. One thing's for sure, it's _not_
on the satellites that make GPS work: they only transmit very accurate
time signals, and it's the _receiver_ that works out (if it can find
three or more of the satellites) your longitude, latitude, and height,
and compares that to a map it contains.
-- 
J. P. Gilliver. UMRA: 1960/<1985 MB++G()ALIS-Ch++(p)Ar++T+H+Sh0!:`)DNAf

If a cluttered desk is characteristic of a cluttered mind, what does an
empty desk mean ?