I want to build a small solar system to power my FT-897D radio (22A at 100W transmit) and a few other small things. I am using 25A as my max. load. Just receiving, my load is probably 3A or less. Max. usage is about 3 hours per day – mostly listening. How many watts of solar panels do I need and how many Amp Hours of battery capacity do I need? What size controller and wire do I need?
Does anyone know how to calculate the answers to these questions? I have found quite a few solar sizing calculators on the internet, but the results they generate vary greatly. I would think there are some good rules of thumb for this – solar power for a 100w transceiver. Any suggestions?