Recent content by SteveHansen

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    Thinking about 4th-generation system

    Thank you for the link to the calculator. That mailbox installation is an odd one. It only has space for one camera in each direction. They are (presently) Hik DS-2CD2232-I5 units with 12mm lenses. That gives a 23-degree FOV, and a PPF of 68 (at 75 feet). I can't move the mailbox, as it...
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    Took a lightning strike today

    Most lightning surges actually enter on the power lines. Most electronic devices have varistors built into the power supply, to protect them against small surges. All of the surge protectors in a house work together to protect all of the devices on the power buss... You just need more surge...
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    Thinking about 4th-generation system

    In 2006, 3 of our vehicles were vandalized in 3 weeks. Then, I put up my first residential video security system. It was an analog DVR with 4 cheap cameras. The first 3 cameras were positioned to watch the 3 parking spaces. We have had no vehicle vandalism since then -- zero occurrences. In...
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