SignallyCurious2
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Everything posted by SignallyCurious2
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I’m waiting for a call back from the SE Oakland county water authority. I’m VERY confident there’s an antenna on top of 2725 samoset AND another water tower at 3910 w Webster with an antenna and I live directly in the middle of them, straight line distance. it’s the only thing that makes sense. Especially considering it was still hammering away next door to TACOM in Warren.
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Had to do some reverse engineering but found the FAA study approval for the water tower. it was some time ago, I’m going to follow up with the water authority tomorrow morning. With that height, it’s no wonder I can hear the signal everywhere I go. Some days it blows through all the way to 467 MHz. My home is line of sight as well.
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I agree, they’re still NBFM and the police are P25, but you can’t rule anything out when it comes to Canadians.
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Looks like it’s owned by the SE Oakland county water authority, I tried calling them an hour ago but their prompt says they left at 3. comparing that location with the readings I have make sense too.
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With my gain set all the way down, the strongest signal reading yet is behind AAM, next to the water tower. it’s either on the water tower at 2725 Samoset Rd royal oak mi 48073 inside AAM On the rail tracks proper, owned and operated by CN - maybe this is a Canadian system?
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If that would be the case I would think I would be unable to decode the DMR messages, even though they’re encrypted, I am decoding DMR message blocks with subscriber info, AES key info, talkgroup info and color tables.
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That’s too far. I’ve got it narrowed down to a 2 square mile radius. The signal is fixed and hits the same power at my home address daily. it’s within .5 mile of this water tower that has antenna arrays on it. 2725 Samoset Rd royal oak mi 48073 it also is not 462.5125, it’s closer to 462.53125 confirmed on 3 different SDR’s and a handheld.
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I’ll check these out, I’m leaning heavily into the 14 mile and Coolidge intersection. American axle has been written up for this before. the two addresses with strongest locations have been: 4250 Normandy Ct, Royal Oak, MI 48073 -21.3db 2600 W 14 Mile Rd, Royal Oak, MI 48073 -29.3db
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Got some tracking done today, it’s intermittent and only 9-5. I believe the signal is between Coolidge and crooks, 14 and 15 mile. Couple interesting antenna arrays that I’m going to check out tomorrow.
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Awesome - gonna do this now.
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Agreed - this is the closest possibility yet. The signal is hitting -22db as far west as Normandy and Woodward and as far east as Delmere and 14 mile. It’s hitting -40db by the tech center in Warren.
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Good eye! the gentleman at delta com plans on reaching out to them to see if this is the case. are they allowed to operated an encrypted DMR repeater? The message blocks I’ve decoded all highlight encryption and I’m only able to get broken voice transmissions.
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I believe it to be a business on the corner of Normandy and Coolidge, I’m over in the small industrial court and it’s peaking at -22db with a noise floor of -68db. It seems to only be active 9-5 PM and currently they seem to be on lunch, no traffic.
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im using a RSP1A SDR, the gentleman at delta com keyed up all his freqs from his repeater and it’s not him. The signal is within .5 miles of my home location, I’m out direction finding now. if there’s a will, there’s a way.
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It is not, the gentlemen at delta com has confirmed this already.
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I submitted a FCC consumer complaint and am headed out shortly to track it down. I’ll update when I know more
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I guess the overall point is - it’s clearly a non licensed transmitter that causes interference all day at my home on GMRS, rendering it useless. What’s the proper way to solve the problem?
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I’ll get more details on it tomorrow; it seems to be a 9-5 sort of thing. Has not keyed back up since 4:55 pm. deocoding some of the messages via sdrtrunk, it appears to be an encrypted DMR repeater.
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Yes, I’m using a RSP1A SDR also https://streamable.com/gsda12
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https://streamable.com/gsda12
