After hearing quite a bit about Meshtastic, I picked up a few different inexpensive devices to experiment with and see how well they work for off-grid texting.
Category: Off-Grid
There may be some dependencies on the grid needed to use your favourite radio communication mode(s).
The Yaesu FT5D’s built in GPS can be connected to a PC for off grid time sync. All that is needed is a data cable and Meinberg NTP.
Adding a battery monitor is a simple way to be able to view the amount of charge remaining, current draw, and voltage from your LiFePO4 batteries.
Using two battery switches, I added a simple way to switch between battery power and AC power.
The GPD Pocket is an excellent form factor for portable, emergency, or field work for digital modes and SDRs. It can easily fit in a small pack with other gear, and is a great alternative to carrying a laptop.
Building your own EMP protective enclosure can be far less expensive than buying one and can be done with readily available parts. Further, you can use the EMP container as a portable go kit.
Powerpole connectors make for a convenient and simple way to interconnect all of your equipment to your power sources.