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Local interference


dhardin53
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Been doing some investigation  work. found the reason why my KG935G when in scan mode keeps geting a spick and stops scanning.

My personal wirless weather station works on 915mHz, killing all Wi-Fi and LED lights, and still pulsing. The neighbor next door has a security gate topically use 316 and 415 MHz, Plane a wlaking over there tomarrow and see if signal increases. Sound a lot like a beacon  posable from the local county airport one mile away. will take a drive over there as well. Wireless gas meter and electric meter I believe is in the 800 rang?  the water meter has some type of Automated Meter Reading (AMR) of sending device as well. Not sure of its frequency. I think it is a drive my system or meatier readings. 

 

Fire up my HDSDR dongle and found this. Sound is not great but there is a click at the end of each burst.  Any suggestions. 

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12 hours ago, dhardin53 said:

Been doing some investigation  work. found the reason why my KG935G when in scan mode keeps geting a spick and stops scanning.

My personal wirless weather station works on 915mHz, killing all Wi-Fi and LED lights, and still pulsing. The neighbor next door has a security gate topically use 316 and 415 MHz, Plane a wlaking over there tomarrow and see if signal increases. Sound a lot like a beacon  posable from the local county airport one mile away. will take a drive over there as well. Wireless gas meter and electric meter I believe is in the 800 rang?  the water meter has some type of Automated Meter Reading (AMR) of sending device as well. Not sure of its frequency. I think it is a drive my system or meatier readings. 

 

Fire up my HDSDR dongle and found this. Sound is not great but there is a click at the end of each burst.  Any suggestions. 

 

20220313_235437.mp4 33.35 MB · 0 downloads

If you're lucky the signal exhibits a fair about of polarization, vertical or horizontal. 

If your radio has a signal strength indicator try rotating the radio 90 degrees. Then turn in a circle and see if the noise will null out completely or to a significant degree. Try to get a compass heading. The noise source should be in line with the axis of the antenna. Repeat at several widely space points. Hopefully you can plot the headings on a map and get a general idea where the location of the noise source might be located.  

If it's coming from a utility pole, wouldn't be surprised, it could be a bad insulator or loose connection. Each utility pole should have a tag on it with a number. You can report that tag number to the local utility and ask them to come out and investigate and repair as necessary.

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Interesting insight, thank you so much. Interesting maybe not related. Sunday night around midnight one leg of the 200 amp breaker failed. After 20 minutes of investigating found one leg at the meter/main breaker and found it. I'm sure it is just a weak breaker and will be replaced today, this happened last year. Just wiggling the old breaker I head something inside the breaker ping sound the then returned the load to normal. Still working today but this breaker is 40 years old and if this is a utility componiee problem  that may have effaced the leg going to my house it is a good time to replace it. But them anagen i don't feel my weak old breaker is it issues. but on never knows. 

Great weather today to get out and program this exact frequency in the hand-held and do just as you said. Would be a nice time to have a small foxhunt mini beam. 

http://www.arrl.org/direction-finding

Thaks again, a little guidance means a lot.

WROQ912

  

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