Hi, Ed.
The marketers call that a "modified sine wave" and get away with it.
Running receivers from them is a headache; I have a 400 Watt Xantrex
"pure sine wave" inverter with auto-switchover (mainly for the desktop
computer) in the ham shack, floating on 200 AH of golf-cart batteries,
and a 600 watt pure sine wave unit for using test equipment and small
tools mobile.
Cortland Richmond
(KA5S)
On 5/20/2012 0227, Ed Price wrote:
*...*
·*A sine wave from only three amplitude levels seems like a big
stretch to be called even a modified sine wave. That's some really
hyped marketing.*
·*The TV had no audio hum and no picture disturbance.*
·*The 175 Watt inverter is very capable of continuously running a 24"
LCD TV.*
·*The inverter packaging claimed FCC Class B compliance, and was also
marked "CETL" (whatever that is).*
·*The inverter did not even get warm.*
·*Despite my misgivings, you can get away with this.*
**
-
----------------------------------------------------------------
This message is from the IEEE Product Safety Engineering Society emc-pstc discussion
list. To post a message to the list, send your e-mail to <[email protected]>
All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html
Attachments are not permitted but the IEEE PSES Online Communities site at
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used
formats), large files, etc.
Website: http://www.ieee-pses.org/
Instructions: http://listserv.ieee.org/request/user-guide.html
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas <[email protected]>
Mike Cantwell <[email protected]>
For policy questions, send mail to:
Jim Bacher: <[email protected]>
David Heald: <[email protected]>
