We have a Carrier high efficiency propane furnace nearly 20 years old with an inverter powered blower motor. It radiates RFI in the 100-300 KHz range, but fortunately nothing higher.
Jack K8ZOA On 3/4/2010 11:47 AM, Don Nelson wrote: > Hi all, > > There was a discussion some time ago about RFI emanating from front loading > washers. > > This note is about the possibility of RFI emanating from microprocessor > controlled house furnaces. We had to have our house furnace replaced last > week because of a failure. Yes we winter camped for a over a day as a > result. We now have a 95 percent efficient microprocessor controlled furnace > installed. I did not think about possible RFI that it might emit at the time > of choosing that furnace. > > The good news is that I have not found any RFI on the HF bands as yet while > the furnace is active or not active. My question to the group is: was I > lucky? The furnace control has a very nontrivial computer control and could > cause plenty of noise. It would be nice to think that the designers of > furnace control systems are sensitive to RFI radiation issues. > > The furnace is a Lennox model G71MPP. > > Don, N0YE > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
