506.7375

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Septa3371CSX1

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I have this frequency listed for Delaware County Fire as Secondary Districts 9 and 10. I've never heard it used before. It used to be Fire 10 but I think Fire 10 is now 506.6625 (Upper Darby Channel). This channel makes a "errerrerr" kind of noise when my scanner picks up the squelch. I looked this frequency up and found that the nearest user other than Delaware County who uses this frequency is Ocean County, NJ. I souldn't be picking up anything from that far away in Delco. Any idea as to whether or not I should keep this channel programmed?

 

fineshot1

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506.7375 in Ocean County NJ is the Barnegat and New Egypt Conv Fire Repeaters and are used in a conventional configuration so your most likely not hearing anything from out this way. Your description of what it sounds like sounds like a control channel or perhaps your hearing interference from another local source to your area.
 

HM1529

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Septa3371CSX1 said:
I have this frequency listed for Delaware County Fire as Secondary Districts 9 and 10. I've never heard it used before. It used to be Fire 10 but I think Fire 10 is now 506.6625 (Upper Darby Channel). This channel makes a "errerrerr" kind of noise when my scanner picks up the squelch. I looked this frequency up and found that the nearest user other than Delaware County who uses this frequency is Ocean County, NJ. I souldn't be picking up anything from that far away in Delco. Any idea as to whether or not I should keep this channel programmed?


506.7375 and 506.7875 are both used by Delco for MDT data transmissions. This is the noise you are hearing.

Fire 10 is 506.6625
 
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