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Interference to 144.39 in Winnetka area

 
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KK9H  



Joined: 29 Jun 2004
Posts: 40
Location: Northfield, IL

PostPosted: Mon Sep 12, 2005 10:59 am    Post subject: Interference to 144.39 in Winnetka area Reply with quote

There is a strong, broad, continuous carrier with a slight 60 Hz hum drifting between 144.375 and 144.415 that has been on the air for the last couple weeks. It is approximately 1/2 scale on my S-meter in Northfield and I suspect that it is also blanking out some signals on the NS9RC digi.

On Saturday I traced it to the area of the intersection of Sunset Road and Hibbard Road in Winnetka. This is about 1 mile southeast of me and about 1 mile west of the NS9RC digi. I was not able to pinpoint the exact house or location of the signal, but it was full scale on my HT with only a 1 inch wire attached to the antenna connector and the attenuation feature turned on. I will try to narrow down the source more accurately if possible at a later date.

Anybody have any suggestions? I would welcome any assistance in locating the exact source of this interfering signal.

73, Don KK9H
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KK9H  



Joined: 29 Jun 2004
Posts: 40
Location: Northfield, IL

PostPosted: Thu Sep 07, 2006 7:03 pm    Post subject: Interference still there Reply with quote

The interference on 144.39 is still present and it was particularly strong tonight. With the help of KD7VDU it was tracked to a specific house, 1250 Sunset Road in Winnetka. A full scale signal on an HT with the antenna off was observed whenever near the house. Also, a full scale signal was observed on 433.170, the third harmonic. Unfortunately, the residents of that home were out so I was unable to contact them at this time. I hope to stop by to talk to them sometime soon.

Don KK9H
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