Problem with spot is that you don't get feedback if your message was successfully received. I am not sure if this is the case with InReach.
Here is an interesting tracker project: http://wiki.glidernet.org/ http://wiki.glidernet.org/list-of-receivers#toc2 http://wiki.glidernet.org/ogn-tracker#toc6 I've been following this for a while now. The low cost, low current draw tracker is neat. However: I want to be seen on other aircraft's tcas and I would like to be able to see other aircraft (other than gliders) that already use "tracking" via ADSB. A multi-frequency solution seems like a good idea. 1090, 9xx, 2.4Gh, 3G, 4G etc. Erich On Fri, May 29, 2015 at 9:57 AM, Matt Gage <[email protected]> wrote: > As long as you think about what you need and check ability against need > you many options could work well. > > In practice, I’ve seen SPOT fail to deliver a help message, and worse, the > pilot had no idea this had happened. Without SPOT and no phone reception, > first option is glider chat frequencies, then area frequency, then 121.5, > and at least you know that you got through. > > I’ve also seen 3G/4G routinely provide tracking down to below 500’ AGL in > the full comp task area from Narromine. If they don’t re-appear within 30 > minutes, either the phone went flat, or they landed, and using google maps > (which is how the trackers usually display this anyway), you can probably > pick the paddock they landed in > > InReach sounds like a good improvement all round though. > > > > On 29 May 2015, at 8:01 , Michael Zupanc <[email protected]> wrote: > > Watch the coverage.... > There are quite a number of different personal locator devices on the > market and they use different satellite phone systems, with different > coverage areas. > > In terms of satellite communication systems, Thuraya and Inmarsat use > Geostationary satelites, while Iridium uses Polar Low Earth Orbiting > satellite constellations. > > Spot trackers seem to be very popular, but probably just because they are > one of the older brands, but Spot does not have global coverage. Anyone > wishing to use such a device should do some homework and determine exactly > what coverage they require as the Systems which use geostationary > satellites are typically cheaper. But a cheap phone is rather useless if it > doesn't work where you are :-)... > > > > On 28/05/2015 7:29 PM, Matthew Scutter wrote: > > Since we're going down this tangent, there's a new kid on the sat tracking > block - Delorme's InReach. > Offers higher update frequencies than SPOT's, *two* way messaging (this is > the killer feature), and I believe they also send altitude information, > unlike the SPOT's. > Roughly twice the cost though. > > I think this one is especially cool, includes a solar panel - > http://www.inreachdelorme.com/product-info/inreachse_extreme_bundle.php > > I haven't used one myself but I have heard very good things from pilots > overseas. > Do check of the coverage maps for both SPOT and InReach, they're not > actually global (ask the pilots in Namibia...) > > On Thu, May 28, 2015 at 7:07 PM, Mark Newton <[email protected]> > wrote: > >> On 28 May 2015, at 4:25 pm, Mike Borgelt <[email protected]> >> wrote: >> > >> > It has been pointed out to me that all we really need is the cellphone >> network. >> > Implement flight tracking for everyone using the web via the cellphone >> 3 or 4G and receive the information on tracked aircraft via the same >> method. Essentially unlimited range and 15 second updates are plenty at >> longer ranges. >> > AMSA are about to implement the tracking via AvPlan so you can let >> them know you'll be doing this. If you don't show up it will help the >> search. >> >> That’s essentially what Spot Trackers are: Hockey-pucks that know how to >> send Iridium satphone SMSs, so they can work anywhere, including where >> terrestrial cellphones aren’t. >> >> - mark >> >> >> _______________________________________________ >> Aus-soaring mailing list >> [email protected] >> To check or change subscription details, visit: >> http://lists.internode.on.net/mailman/listinfo/aus-soaring >> > > > > _______________________________________________ > Aus-soaring mailing [email protected] > To check or change subscription details, > visit:http://lists.internode.on.net/mailman/listinfo/aus-soaring > > > -- > Michael Zupanc0408662328zupy.net > > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring > > > > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring >
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