Re: Solar Generator for portable power
开云体育Yep!? Example, attached.? This is an "AC Anywhere" 140w inverter, the kind you plug into your car's 12v Accessory outlet, driving a 60w incandescent bulb (a non-reactive load), but all the modified sine wave inverters I've tested look pretty much the same.? The inverter in the HOWEASY should be very similar.? All those edges are radiating a bazillion harmonics.My first pass at an off-grid solar / battery setup for my Shack included a 1kw modified-sine wave inverter, only because I got it free.? I was figuring a few birdies that I could work around.? Nope.? It wiped out the ENTIRE HF spectrum, wall to wall, 80 meters through 10.? I swapped that out for a Victron pure sine wave unit, and all is peaceful and quiet. Your switching to a simple battery setup, backed up with solar and an MPPT controller is perfect for what you're doing.? It might be worth getting a small inverter, preferably a pure sine wave unit since they've come way down in price recently, just as a backup for around the house if the lights go out.? Run a LED / CF lamp, charge your laptop or cell phone, whatever.? Good Ham Swap item to keep your eyes open for. Greg? KO6TH Joseph Wonoski via groups.io wrote:
As long as you understand that a modified sine wave is really just another form of a square wave. I've put them on an oscilloscope a number of times.? |
