A little new year - new usage - update, since I read this thread and others in choosing both a PLB and a subscription plan.
Purchased the InReach for Christmas to go along with the new PA-11 I was picking up. While I like the idea of it should I go down, my wife is a nervous nelly and so it helps her out being able to find me while I'm flying.
With all the chatter on here about the Enterprise plans vs the 10 minute intervals offered by the recreation plans, it was a no brainer to go with the Delorme 1 plan, figuring I would see how the usage went and move up plans from there, as you can move up without a fee.
Well, I got the first bill/receipt and found that tracking on 2-5 minute intervals uses a lot more data that I expected. On a 21 dollar plan I had 41 dollars in overage fees. Oops.
This may change since Garmin has purchased them, but the current invoice is confusing to the first timer. All the tracking points are bundled together so when they print out the invoice, it shows anywhere from 1 to 10 points being charged at the _EXACT_ same time. So at 10:47:52 you would see 10 points that look like they were logged and charged, instead of a single point being logged and charged for at that precise moment. So, I called them up and asked them to walk me through it. Turns out the points are bundled and changed to zulu time and then back to your timezone time, and then printed.... somehow ending up looking like they charged you 10 times for each point they tracked.
So then I went into my second question, which was missing tracking points, and in some cases, unlogged entire flight paths. As much as I didn't want to believe it, it really appeared to be an altitude thing, where my paths down the rivers and such were never logged, or perhaps 2 points in an 1.5 hr flight, and flights at 3000 feet pinged every single interval.
This turned out be low altitude flights in conjunction with having the InReach clipped onto the map pocket, right next to my right knee in the PA-11. Once I moved it up onto the glare shield, all the points were tracked. So bear in mind, it's not an ELT with a big antenna. It MUST have clear view of the sky at all times. I'd prefer to have it on my body, as it may be lost in a crash, but to ensure signal, get it out in the open.
But, this leads me to the real point of this post. The "CS rep" then questioned why I was using the Enterprise plan vs the standard subscription plan, for when you compare data usage and limited text messages, the "recreation" plan is substantially less expensive. Buy it on a yearly contact and it's only $25/month, vs $35+ for Enterprise. I explained that the Enterprise was recommended by all the pilots and how the tracking points at 10 minutes apart were too far....
So this is where I almost got caught.
There are two types of points captured, one is Tracking points based upon the plan and your preset, and a secondary point, called an interval point. This CS Rep in attempting to define these to me confidently told me that the Interval points upload with every set of Tracking points, and therefore if you have your Tracking points set at 10 minutes, and your interval points set at 2 minutes, it would upload 5 points every 10 minutes. THIS IS COMPLETELY FALSE. I said that's great, switch me over. One thing led to another and just before my trip on Sunday I got an email saying they hit a snag and could not swap plans without erasing this one and starting over new. I figured I'd respond Monday when I got back. So I looked at my tracked points upon return and was happy to see that on the glare shield all the Tracking points were displayed, but yet none of the Interval points showed up. So I spoke with Tech Support and sure enough, interval points only display when you sync the device. WTF. I don't have cell service much, and so I rarely link my phone to the InReach.
So to recap - If the InReach is linked to the Earthmate App on your phone, AND has cell service, it will sync over cellular data and upload the interval points. Otherwise, the only time your interval points will upload are after the flight, and you plug in the InReach and "sync" it. Which in reality, I have no reason to do, unless I am updating software or preset messages.
So just like everyone else on here stated - the Enterprise plan is currently the ONLY option to get tracking points under 10 minute intervals. And if you think that you don't go far in 10 minutes, log your flight in foreflight and with InReach, and then overlay the two tracks. They can be extremely different.
Long story short, I send the rep an email this morning saying that no, can't switch to the "recreation" plan, I have to stay with the Enterprise to ensure Tracking points under 10 minutes.

