The SPOT unit has the potential to be a breakthrough in backcountry safety. It's lighter, more compact, and less expensive than Personal Locator Beacons (PLBs), which can only transmit a distress signal to emergency services. It's lighter and less expensive than a satellite phone and has more coverage than a cell phone. The SPOT also has a Tracking (breadcrumb) mode, which automatically sends your location every ten minutes. Unlike PLBs (or even most cell or satellite phones), the SPOT unit can transmit your exact location plus one of several messages:
- "I'm here and OK."
- "I need help."
- "Call 911 and rescue me."
Several of our testers believe that a device like the SPOT unit would alleviate their family's worrying back home, making it easier for them to get permission to go on backcountry trips. This is especially true for solo walkers or people who pursue dangerous endeavors like technical mountaineering in areas beyond cell phone coverage. However, Backpacking Light makes no formal recommendations about what safety equipment any outdoor enthusiast should carry.
On paper, the SPOT unit is an innovative concept for improving backcountry safety. In the field, it did not deliver "virtually every message" as the SPOT unit's literature claims, and the unit has usability problems. As such, we believe is has yet to deliver its promised functionality and message delivery reliably.
ARTICLE OUTLINE
- Overview
- What's Good
- What's Not So Good
- Review Objective and Testing
- Does the SPOT Unit Work?
- Basic Operation of the SPOT Unit
- Search and Rescue Perspective
- Analysis of Test Results
- Antenna Design
- Obtaining a GPS Fix
- Tracking Mode When Backpacking or Hiking
- Message Reliability
- No Message Delivery Confirmation
- SPOT Website
- SPOT User Interface
- Enhanced SPOT Display
- SPOT Versus Other Options
- Personal Locator Beacons
- Satellite Phones
- Cell Phones
- Conclusion
- Reliability with a Perfect View of the Entire Sky*
- Reliability with Less Than a Perfect View of the Entire Sky
- Reliability in Tracking Mode when Hiking or Backpacking
- SPOT's Caveat - "Based on Network Availability"
- User Interface
- In the End, It's a Personal Decision
- Technical Appendix
- Six Day Extended Field Test with a Perfect View of the Entire Sky
- With a Perfect View of the Entire Sky
- With Less than a Perfect View of the Entire Sky
- Limited Sky View Test
- Field Test - Tracking Mode While Walking
- Field Test - OK and Help Messages
- Tilt Test
# WORDS: 11480
# PHOTOS: 18
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Discussion
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Hi Roger,
>The Solara system could be configured as a text messaging 'wait until a slot is free' system.
Users doing texting need fast response. That said, I'd love it if it could be charged at a lower fee, too. No doubt we there are a lot more sales whenever anything drops in price. We'll see what happens in the future.
>I will stick my neck out here and label that a typical idiot committee decision.
Looking at the way my post was worded, OK, I can see how it sounded a bit unusual. I should clarify this a bit and mention that I would like to defend the SAR folks that specifically insisted on backup power (all SARSAT beacons have an nonrechargeable lithium battery that is never used until the alarm is hit – it's actually not out of the question to put a small secondary source into a commercial device, especially a much more power-efficient one like ours). The fellows in particular that told me this also include paratroopers that jump out of the back end of a Herc to save people in distress and the pilots that take them there. Canada has lost a number of aircraft and crews over the years and many have been injured and frozen in the performance of their duties saving guys like us. These guys know what can go wrong and only ask for what they know works.
Hi John,
>How long do those nickel metal hydride batteries last at say zero degrees compared to lithium batteries?
As for the internal rechargeable batteries, whether lithium or NiMH, there isn't much difference at 0 (Farenheit, I think you must have meant). But the types we use would still have about half of the capacity at that temp – it's when it gets below -20F that you really see a drop. If you were in trouble and warmed it in your coat and got it to even 32F, you pretty much have full capacity.
Non-rechargeable lithiums do also lose capacity in the cold, but no where near as much as rechargeables. That's also why we provide an external battery holder for nonrechargeable lithiums as an option. Right now, our first device is targetted for professionals in the back country on a daily basis that also need tracking and texting. We're working on a lighter design that is more conducive to backpackers. Part of the reason I posted here was to hear comments on what people would like to see. Seems you definitely have a vote for a unit with non-rechargeable lithiums that can be changed out by the user. Message heard!
I think it's a good idea in theory. Just received mine today. Wow, it's HEAVY. Is there a lighter weight unit that does the same thing? Got it from Amazon. 30 days to send it back! Any thoughts on how fast it consumes its batteries (in the real world)? Thanks for this thread everyone!
Hi Hartley,
There's no exact SPOT equivalent at present and yes, the 1st gen model is a pretty heavy piece.
You might consider waiting for the new SPOT unit to roll out and receive technical scrutiny. It may hit closer to your weight and function targets than the present model.
In case you've not read the ORSM writeup, here's a link:
http://www.backpackinglight.com/cgi-bin/backpackinglight/orsm09_spot_two.html
There are now several lightweight PLBs as reasonable options but of course they don't have the SPOT's tracking and "I'm okay" features. For emergency purposes they're well-proven.
Cheers,
Rick
A fresh set of lithiums lasted 3 weeks easily riding across the country and this is with only 3-6hrs of downtime per day when it was off.
Were you using the breadcrumb feature? That eats batteries faster.
Yes that's with tracking on.
For that matter, does anyone have better information on when the new, lighter SPOT unit will be available? All I can find is references to "select distributors this fall."
I'm pretty much under orders from my wife to get one of these things…
I think the Spot is more for other's peace of mind than your own. I got one and have been playing with it around town. Re: breadcrumbs. Can't figure out how to reset it after 24 hours. I push OK for 5 seconds and see the double flashing lights but it doesn't seem to track again. Are you suppose to turn it on and off before resetting breadcrumbs. Perhaps better sent to Spot support.
I just called my local REI, they hope in about two weeks.
I have an ACR 406 PLB that I take with me on long solo hikes in Arizona canyon country. In the last two years I have done 3 or 4 hikes with a rented Iridium satphone, and on my most recent hike I left the PLB at home. I also for the first time tried the satphone in several different locations. I was a bit disappointed to find that the satphone needed a surprisingly large percentage of the sky to work.
My question for you guys is whether the ACR PLB, which uses a different set of satellites, is likely to require MORE or LESS of the sky visible to work.
If the PLB needs less of the sky to work, I may start carrying both devices. If both are working at a given spot, it's nice to have the 2-way communication of the satphone.
However, if the PLB needs even more visible sky than an Iridium satphone, then it's hard for me to justify the extra weight of the PLB.
Thanks for any comments!
To reset tracking every 24 hours, first turn the unit off, then back on and hold the button down until the light goes on and back off. Simple and always works for me. I'd agree that the useage isn't super intuitive but there are not that many functions to learn.
Pretty much for the SPOT, if you always remember to turn off and back on again when "switching" modes, you'll be fine. I use the tracking most of the time these days, saving the "OK" feature for things like topping out on a technical climb so my wife knows the most dangerous part is done.
doug ritter initial hands on with spot 2
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