Off Grid Ham: Introduction to AC Inverters

From Chris at Off Grid Ham, An Introduction to AC Inverters. Even if you’re already happily running all of your ham radio equipment off grid, at some point you might wish you could run something that wants 120V AC. If you’re not a ham radio operator, and you’re looking into running some household stuff from a battery/solar system, then you also are probably interested in learning something about AC inverters.

AC inverters are like other technology in that during the early  years they were very expensive and didn’t work particularly well. Over time they were tweaked and improved and today inverters are better and less expensive than their ancestors. I suggest including an inverter in your off grid plans even if you don’t think you need one because the day may come when it will be an essential asset. Furthermore, if you have any intentions of owning a larger solar energy system to power common household devices, then a familiarity with AC inverters is a must…There are three basic types of AC inverters on the market: Square wave, modified sine wave, and pure sine wave. Which one will work for you depends on what you plan on powering and of course your budget…

Click here to read the entire article at Off Grid Ham.

Champion 7000/9000 Generator on Sale at Costco

Costco in Kennewick is currently having a sale on the Champion Dual Fuel 7000 watt generator. This generator sold for $799 a couple of years ago, and currently sells for $699 on Costco’s website.  In store, it is on sale now for less than $550.

The Champion Power Equipment 100419 7000-Watt Dual Fuel Portable Generator is the perfect combination of versatility and convenience. Whether you need power for your home or next project, Champion Power Equipment makes powering your life more convenient than ever.

The convenient electric start includes a battery, plus Cold Start Technology ensures a quick start in cold weather.

Easily monitor power output and track maintenance intervals with Intelligauge, which allows you to keep track of voltage, hertz and run-time hours. Designed with a low oil shut-off sensor, this unit includes 1.2-quarts of 10W-30 oil.

Operate your Dual-Fuel generator right out of the box on gasoline or propane, and easily switch fuels with our patented fuel selector switch that allows for safe switching between fuel sources.

Using gasoline, the 439cc Champion engine produces 9000 starting watts and 7000 running watts, and will run for 11.5 hours at 50% load when the 8.5-gallon fuel tank is full. It produces 8100 starting watts and 6300 running watts, and will run for 5.5 hours at 50% load when using a 20-pound propane tank. Also included is a 3.3-foot propane hose with a built-in regulator.

With a noise level of 74 dBA from 23 feet, which is a bit louder than a vacuum, this machine can provide home backup in an outage, plus the Volt Guard™ built-in surge protector prevents overloads and keeps your equipment safe.

All the outlets have covers and include a 120/240V 30A (L14-30R) locking outlet and four 120V 20A GFCI protected household outlets (5-20R).

Champion’s thoughtful packaging and clear directions make setup hassle free, plus the foldaway U-shaped handle makes it easy to store, while the never-flat tires in the included wheel kit make transport a cinch.

Buy this EPA certified and CARB compliant generator with confidence – Champion Support and our nationwide network of service centers will back up your purchase with a 3-year limited warranty and FREE lifetime technical support.

Features:

  •  Dual Fuel – Operate your 7000-watt portable generator right out of the box on either gasoline or propane, plus the unit holds 1.2-quarts of oil (included) and has a low oil shut-off sensor
  • Electric start – Power up the 439cc Champion engine with the handy toggle switch, battery included
  • Intelligauge – Keep track of voltage, hertz and run-time hours to easily monitor power output and track maintenance intervals
  • Powerful – At 9000 starting watts and 7000 running watts on gasoline and 8100 starting watts and 6300 running watts on propane, trust Volt Guard™ built-in surge protector to prevent overloads
  • Champion Support – Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts

Items Included: Smart Charger, Engine Oil, Wheel Kit, Oil Funnel, Propane (LPG) Hose, Battery