HobbyKing Strikes Again
I should have learned by now not to buy batteries from HobbyKing. Way beyond safe discharge limit for a 3S LiPo.
Category: Batteries & Power Systems
Power Supply Failure
One of our local repeaters, K4SCO 147.36 had a power supply failure a couple of weeks ago. I’ve just now gotten around to opening it up and didn’t have to look very hard for...
Ground Rod Resistance
Here’s a great video showing how depth and soil type affect the resistance of a ground rod. The video is geared towards linemen however the same rules apply to grounding an Amateur Radio station....
VHF/UHF Go-Box in Detail
Last week I posted a few pictures of my completed VHF/UHF Go-Box so now I’d like to explain more about it and the reasoning behind my choices. My design requirements for the go-box have developed...
VHF/UHF Go-Box Complete
My portable VHF/UHF Go-Box is now complete. This enables me to be able to setup a fully self-contained portable station within minutes. I can also move this between vehicles when needed to provide a...
AnyTone 8R Charger Modification
Since receiving my AnyTone TERMN-8R it has become my most widely used HT. Being used daily it needs charging often and many times I need to charge it on the go. Luckily this was...
Portable Radio Go-Box – Part 1: Planning
Lately I’ve been throwing ideas around about building a radio go-box of sorts but I keep running into the same two problems, cost of buying extra radios just for the go-box and size limitations...
12v Battery State of Charge
The table below shows the approximate state of charge based on voltage of an open circuit, meaning the battery is not currently under any load and is not hot from previous load. While this...
