Do Modified Sine Wave Power inverters work for rad

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Do Modified Sine Wave Power inverters work for rad	Reply
by G0FOS on February 19, 2001	Mail this to a friend!
Has anyone used a Modified Sine Wave Power Inverter (12V DC-110/240V AC) to power their mains transceiver in the car? The cost for a pure sine wave converter of appropriate Wattage is very high. I would be interested if they can't be used at all with transceivers, and if they can, with what limitations. Thankyou.

RE: Do Modified Sine Wave Power inverters work for	Reply
by WB2WIK on February 22, 2001	Mail this to a friend!
I've tried it, but not a great deal of data on this. I have a "1000 Watt" (rated) modified sine wave inverter; it was very inexpensive, I believe $99 ($USD), and its instruction sheet claimed it could be used for powering televisions and computers, with a disclaimer that the user would have to try it and see. At least they claimed the output would not DAMAGE such appliances, which was enough incentive for me to try powering an old Kenwood TS520S with it. The TS520S draws less than 100W on receive, and about 300W on transmit, from the AC mains. The inverter worked! I did successfully transmit and make a few contacts. Nobody reported hum on the signal, which is a good sign. However I did not have occasion to "listen" to how it sounded on the other end. I'd recommend simply trying it, first on RX, then with reduced power on TX, and if all goes well, increase the TX power and see what happens. It would be best to have a second receiver available, to listen to the output of the transmitter being inverter-powered, and see if it sounds pure and stable. If not, the experiment was a failure! Good luck!

RE: Do Modified Sine Wave Power inverters work for	Reply
by N3BSZ on June 17, 2002	Mail this to a friend!
At our radio station we use a modified sine wave inverter without a problem. In our remote vehicles we have a 750watt unit that powers all of our gear and has a slight noise about 50db below 0db. This would be fine for any amateur use. Also get 2/0 welding cable for the power leads, there is less noise produced and works well. Tom tkarvelis@adelphia.net

RE: Do Modified Sine Wave Power inverters work for	Reply
by N3BSZ on June 17, 2002	Mail this to a friend!
At our radio station we use a modified sine wave inverter without a problem. In our remote vehicles we have a 750watt unit that powers all of our gear and has a slight noise about 50db below 0db. This would be fine for any amateur use. Also get 2/0 welding cable for the power leads, there is less noise produced and works well. Tom tkarvelis@adelphia.net

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