(Continued from Part 2.)
It’s All in Your Hands
The core component of my field technology system is what most people would call a cell phone or smartphone, but I prefer to call a Mobile Information, Communications and Control System (MICCS), or just mobile device for short. Why not call it a cell phone? – because the cellular network will most likely be one of the first things to go in a TEOTWAWKI scenario. Granted, you could potentially create your own cellular network if you have the money and expertise, but for the purposes of this article I’m going to assume you’re operating without any cellular (and hence, Internet) connectivity. As a result you don’t need to worry about what kind of cellular connectivity your mobile device supports.
You should also consider the availability of GPS post-disaster – it may or may not function, depending on the specific event. Unless something like a CME impacted the GPS satellites directly, GPS signals will most likely continue operating for some period of time post-TEOTWAWKI. Exactly how long is subject to some debate – the older systems required updates from ground stations every few weeks, or the signals would start to drift, reducing their accuracy. The newer satellites are supposed to be able to maintain their precision for a lot longer, so accurate signals may be available for several years after an event. For the purposes of this article I’m going to put GPS in the ‘nice to have but not critical’ category.
Here are the requirements I came up with for my MICCS mobile device:
- Rugged with at least an IP68 rating (or able to be ruggedized by putting it into a case)
- At least 2GB of Random Access Memory (RAM) – 3GB or more is better
- At least 32GB of flash storage (more is better)
- Supports a removable microSD card
- Supports multiple GPS systems (GPS, GLONASS, etc.)
- Minimum of Android version 8 (I know absolutely nothing about Apple devices, so I’m going to focus on Android)
- Supports On-the-Go (OTG) for connecting external USB devices
- Minimum of 3000mAh battery
The device I ultimately settled on is a Ulefone Armor X5 – it met or exceeded all of my requirements, and you can find it for around $100-$150. A slightly less expensive option would be the Ulefone Armor X7, which has less RAM and flash memory; a more expensive option is the Ulefone Armor 3WT which offers a lot more RAM and flash memory, a 10,500mAh battery and a built-in 2W 400MHz-470MHz radio. Blackview and Doogee are other manufacturers that make some decent rugged mobile devices. Note that these tend to be bulkier than most mainstream consumer mobile devices, so you’re probably not going to be carrying it in the back pocket of your skinny jeans. If you have a friend in military procurement and a lot of money, another option is the Samsung S20 Tactical Edition (it’s ‘Proven by operators’, according to Samsung 8-))Continue reading“Tactical Technology for TEOTWAWKI – Part 3, by J.M.”