Matthew et al: InReach is a good device.
I owned the original SPOT from prior to their creation of the "shared page" and then had a SPOT2. Delorme introduced InReach a couple of years ago. A friend still uses the original (cube-shaped) one. I switched to InReach when my SPOT contract ended at New Year's, started flying with it at Keepit in February. The InReach SE works very well, tracks more often and more reliably than SPOT. Like APRS, it tracks Latitude/Longitude/Elevation/Speed/Direction. Have only tested the duplex messaging. You can = connect a cell phone by bluetooth and dictate messages to send by satellite. InReach uses a better satellite network than SPOT. The batteries last for several days of flying and are recharged by USB. It is slightly more expensive to subscribe than SPOT, but for those who only want to use it a few months a year they offer a subscription for that. There's a newer device than SE if you'd like "navigate to" function. Don't remember the deal I received from DeLorme, but there was a $50 rebate check and some sort of discount on tracking for a period. Currently billing me $1 a month which raises a red flag at the credit card company. My parachute rigger made a hard point for the SPOT on the left shoulder of the Mini-Softie harness that puts the tracker in a good position and will not interfere with parachute deployment. He recently built an airworthy pouch for the DeLorme SE. The original SPOT fit in a modified ELT pouch, SPOT2 came with a decent pouch. In Australia the cell phone network might be a viable alternative, but in southwestern US you're booted off the network at altitude, then the phone goes into search mode and runs the battery down. Seems as more people find uses for it, the mobile data network is getting saturated.
Jim



On 5/28/2015 2:29 AM, 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 <new...@atdot.dotat.org <mailto:new...@atdot.dotat.org>> wrote:

    On 28 May 2015, at 4:25 pm, Mike Borgelt
    <mborg...@borgeltinstruments.com
    <mailto:mborg...@borgeltinstruments.com>> 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


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