PowerPro radio interference

Ed in Tampa · Post by **Ed in Tampa** » Sat Mar 05, 2011 10:20 am

I wonder what effect the Power Pro might have on Pacemakers?
I could just see ramping up someone's pace maker to say 3440 beats per minute. Hey hand them a floor broom and stand back.

nuhobby · Post by **nuhobby** » Sat Mar 05, 2011 10:38 am

nsmith01tx wrote:Just remember to turn off the PowerPro before boarding an airplane.

You mean I should board-up the airplane with hand-tools?

charlese · Post by **charlese** » Sat Mar 05, 2011 10:13 pm

Yep! There is the same static pulses in my house. The House is entirely separate from the shop. Same electric meter, but entirely different feeds and circuit boxes.

There is no volume difference from high to low AM frequencies.

Tomorrow, I hope to test the car on AM and see how far away the static carries.

claimdude · Post by **claimdude** » Sun Mar 06, 2011 12:14 am

charlese wrote:Yep! There is the same static pulses in my house. The House is entirely separate from the shop. Same electric meter, but entirely different feeds and circuit boxes.

There is no volume difference from high to low AM frequencies.

Tomorrow, I hope to test the car on AM and see how far away the static carries.

I have no radio interference when my PPro is on neither in the shop or in the house which is about 20ft away. Same breaker box.

Jack

dusty · Post by **dusty** » Sun Mar 06, 2011 3:51 am

charlese wrote:Yep! There is the same static pulses in my house. The House is entirely separate from the shop. Same electric meter, but entirely different feeds and circuit boxes.

There is no volume difference from high to low AM frequencies.

Tomorrow, I hope to test the car on AM and see how far away the static carries.

I'll be really surprised if the car exhibits the noise. I think this is a ground current phenomena.

michaeltoc · Post by **michaeltoc** » Sun Mar 06, 2011 7:58 am

I get the noise also - AM only, FM is fine. I'm using a dedicated 220v circuit. Has anyone noticed that you can hear a faint high pitched beeping coming from the PP? The frequency of the beeping is the same as the pulsing coming out of the radio, which I clocked at about 150 beats per minute.

bobdaun · Post by **bobdaun** » Sun Mar 06, 2011 1:38 pm

Thanks to all of you who have responded. Both the shop radio and the car radio happened to be tuned to the same station (970 AM, Wisconsin Public Radio).

I just went into my shop to check on radio frequency. The static is on all of the AM stations. There is absolutely no interence on the FM band.

Bob

charlese · Post by **charlese** » Sun Mar 06, 2011 8:07 pm

dusty wrote:I'll be really surprised if the car exhibits the noise. I think this is a ground current phenomena.

The car picks up the static at about 150 feet away from the shop.

dusty · Post by **dusty** » Mon Mar 07, 2011 4:32 am

charlese wrote: The car picks up the static at about 150 feet away from the shop.

Thank you Charlese. That sure shoots may theories down. That leaves either RF or EMI/EMC and I am not willing to venture there at all.

Fla_Jim · Post by **Fla_Jim** » Mon Mar 07, 2011 8:53 am

You might go to "Radio Shack" and get a snap on "RFI" choke. These just snap on the power cord, and attenuate any radio frequency signals riding the cord.
http://www.radioshack.com/product/index ... Id=2103222

Shopsmith Forums

PowerPro radio interference

Reply to my original radio static query

Surprise!