ST RFI [RE-wrenches]

[Chuck Heath, SunPower]

>Hey Wrenches,
>
>I've been talking with a guy that has two ST2500 inverters installed 
>in his shop. He's also hooked on AM talk radio. The inverters are 
>blitzing his shop radio.
>
>Trace is suggesting Faraday cages for the inverters. Think this would 
>be effective? Any of you found a simpler solution to ST generated RFI?
>
>Thanks dudes,
>
>Joe
>-- 
The first thing to determine is if the interference is coming through the 
AC wiring powering the shop radio, or is actually being radiated in the 
air. This can be determined with a battery-powered AM radio, or car radio 
parked near his shop.

To limit RFI, Jeff's suggestion of ferrite beads is wise. I'd also 
suggest getting a better quality AM radio connected to an outside, 
long-wire antenna if the source of interference is the wiring rather than 
radiation. Having a stronger AM signal will help override any 
interference. Sometimes just turning the radio AC plug around (the old 
non-polarized types) will eliminate interference. 

The suggestion of twisting the inverter cables and enclosing them in 
grounded metal conduit should also help.

Just my 2 cents...

Chuck Heath (living inside radios for 50 years)
"Plugging into Sunshine since 1989" 

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9
Or send an email To: RE-wrenches-unsubscribe at topica.com
This email was sent to: michael.welch at homepower.com

T O P I C A -- Register now to manage your mail!
http://www.topica.com/partner/tag02/register
==^================================================================