Recent content by ThomasCamFan

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    Multiple camera monitors on Dahua NVRs

    I use a ZVPro 820 to send my Dahua NVR's HDMI output to all the TV's in the house. It uses the existing coaxial antenna system wiring. The DVR's video is setup on an empty digital TV broadcast channel. This modulator has two HDMI inputs. So it is capable of handling your two NVRs. It is an...
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    Post your AI Bot posts here

    Without access to the poster's email address and actual IP address, it will be impractical for members to do the research that is necessary to detect the latest AI activity. Unlike what we have seen in the past, these bad actors are getting remarkably legit looking. Especially now that the AI...
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    Forum technical problems getting bad?

    I disagree. They are getting very convincing. Sometimes impossible to tell without a time consuming investigation on the web history of a new forum poster.
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    Forum technical problems getting bad?

    Keep in mind the latest AI generated posts now look legit. Sometimes these automated bots post interesting questions, other times they provide assistance that seems valid. All the while, we humans are unaware that they aren't real people that need real help. None of this "helpful" activity is...
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    Forum technical problems getting bad?

    Lately a lot of small forums are experiencing slow downs and hangs. Such forums are being hit by 1000's of AI-searchbots continuously for days. Larger forums have the means to maintain a staff that can block these "attacks." Little forums, especially with no one at the rudder, just get hammered...
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    PSA: Physical Gift Card Fraud

    Last August 2024 I had a similar problem with a $75 Home Depot gift card given to me by a neighbor I helped. The card was missing the PIN number. The store manager told me they had a bunch of cards with defective printing and pulled everything from the shelf. Mine must have been missed, or...
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    Video/Event delay - Turn Sprinkler on when an IVS rule is triggered

    At my previous home I had a wild turkey problem. So I used a camera activated sprinkler to chase them off. I did not experience a noticeable time delay. I'd say it all happened within 1-2 seconds of IVS intrusion/tripwire detection. I used a low cost POE Amcrest turret camera that was flashed...
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    New IPC-Color4K-T is Out of Focus.

    I checked the Empiretech data sheets: IPC-COLOR4K-X with 2.8 mm lens has 3 m (10.2 ft) focal depth. {That is confirmed by your photos} IPC-COLOR4K-T with 2.8 mm lens has 5 m (16.4 ft) focal depth. {Mine seems a little bit further than that, hence my claim of 6 meters} - Thomas
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    New IPC-Color4K-T is Out of Focus.

    @Photon Farmer, thanks for the detailed instructions. I received the replacement camera today (ordered it before my Amazon return). Previous version was 3.6mm (my preference), but I replaced it with 2.8mm. I suspect focus looks better to me because the 2.8mm has a shorter minimum focus zone (1...
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    New IPC-Color4K-T is Out of Focus.

    I disassembled the camera and found the lens fully contained inside a protective barrel. I tried pulling off the barrel piece, but gave up before I broke something. Time is running out -- My 30 day return window ends in two days. So I am taking the easy way out and will return camera. I did a...
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    New IPC-Color4K-T is Out of Focus.

    I just added a third IPC-Color4K-T (3.6mm) to my Dahua NVR. First two have been in service for a few months and have very nice images. But the new one is slightly out of focus. Drat! All three are using the same settings. The camera is still within the Amazon return window. I have a week to...
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    Would you trust this device?

    Nothing unusual. Bluetooth module, flash memory, accelerometer sensor, and battery. Has value if you like hacking/salvaging stuff from the junk drawer. - Thomas
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    Amcrest AD410 dies in about 24 hours when connected to doorbell wiring

    Since the problem has occurred after two years of trouble-free operation, there is a chance the camera is defective. Or maybe the doorbell button switch is worn out and randomly making contact. If this occurs too often it may cause a WiFi disconnect because the battery would get discharged...
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    Package Delivery Technique USPS

    I had a similar front door delivery experience with UPS. Here is the 14 year old (2010) video of the special delivery. Apologies for the poor quality. - Thomas
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    Paintcam

    At my previous house I was having an ongoing problem with wild turkeys digging in the front yard gardens. They made a huge mess. I tried a couple different motion sensing sprinklers from Amazon but they were unreliable. The winning solution was a DiY automated water sprayer that used my home...
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