[RFI] Can you identify this noise?

Pete Smith n4zr at contesting.com
Sun Jan 11 15:10:52 EST 2004

At 12:12 PM 1/11/04 -0600, K4RO wrote:

>I have a new noise in the neighborhood which appeared
>about a month ago.  It caused a real problem during the
>recent ARRL Ten Meter Contest.  The noise is present from
>about 27.8 to 28.1 MHz, and it pretty well wipes out 10m CW.
>The noise seems to be there most of the time, although I
>have noticed some random periods when it is not present.
>You can listen to a sound clip at the link below.  I would
>appreciate any ideas on what the source might be.

I'd look for a defective thermostat on something -- maybe a pool heater, or 
the infamous heated dog dish.

Are you sure it isn't also audible on lower frequencies?

By the way, Kirk, your isp refused my contesting.com domain.

73, Pete N4ZR
Check out the World HF Contest Station Database
Updated 9 Jan 04

More information about the RFI mailing list