Fleet Rebalancing

The supply of running older used tower trailers at auction continues to be good so I keep adding new ones. Two of the older ones were sold. I am trying to standardize. Every one is 30′ and diesel. Except ONB, which has a quieted down Dual Fuel generator with the Chinese/Indian scooter muffler mod. ThereContinue reading “Fleet Rebalancing”

Baking Electronics

Locally here, we’re on a multi-day 90 degree or higher weather marathon. So what does that do to electronics, like Rasberry Pi devices in your outdoor tower trailers? Good question…. Well, our batteries are getting pretty well charged in the sun. This time of year, the solar panels can run mesh and small computers 24/7Continue reading “Baking Electronics”

Amateur Mesh Radios

Years ago we standardized on Ubiquiti radios for our mesh work. That was a good decision. I prefer 5G vs 2G as it is in our experience far less congested. We picked channel 157. They are lovely, and the older models (use the HP = High Power ones, the really really old ones do not)Continue reading “Amateur Mesh Radios”

A Tale of Two Meshes

Back in 2011 we got some money from Dan Skripka and ordered a selection of Ubiquiti mesh hardware for our Lab. We liked the idea of a backbone network on 5 GHz, as 2.4 Ghz has just three non shared channels and was congested. The noise floor on 2.4G with thousands of cell phone carryingContinue reading “A Tale of Two Meshes”

D-Star and Reflector 53

Fifteen or twenty years ago we had a need at the Medtronic Twin Cities Marathon to keep track in real time of the location of hundreds of injured or dropped-out runners across fifteen or so aid stations, a fleet of busses and a 40×80 foot hospital tent. This expanded to include a fleet of medicalContinue reading “D-Star and Reflector 53”


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