TechTurkey

I am pondering which setup would be the most cost-effective and reliable: The building is 8 stories high, rather narrow structure. It has an existing DigiMux DG4016 BNC vid/wired power/included CRT monitor (a pretty dated system, but working), I found the documentation, but cannot find if it's a 12v or 24v system. There are 10 in-place cameras, no PTZs, just night vision and some are zoom capable, possibly 400TVLs. 2 cameras in the carport area will need to be replaced due to theft. I need to add 10 more cameras. 7 cameras, starting on floor two across from each elevator door. 1 on floor eight by outside roof access, 1 more in dead area by front lobby and 1 viewing parking gates. That is a total of 22 cameras, 12 are existing (minus the 2 already wired, theft replacements) and 10 at new locations. I would love to install a 2.4ghz (5ghz doesn't do well through walls) wireless system for video and power them at each camera's location. It would be just under 1000ft of cabling otherwise. Longest run being ~150 foot. So here are my questions to you: Should I replace old DigiMux and use existing cabling? 22 total cameras falls into purchasing new 8 camera system and also a 16 system to cover the 22. Keep the DigiMux, utilize it's 4 unused BNC ports (16) and just purchase a single 8 camera system and have 2 extra ports (or use just 2 from DigiMux and all 8 on new sytem, doesn't matter much)? How well is the RG59 18/2 Siamese cable shielding for interference? Do I need to use EMT conduit? What are the run length limits and will RG59 22/2 suffice? Is it possible, cost effective and just as reliable to do a wireless system? Labor alone really adds up, if I were to run lines. What products would be super spiffy? I have done several larger home installs, all cabled 8 camera systems, but this is not my true trade. I know the building owner personally and he is curious what MY bid would come out to. Thank you for your time!

Are the BNC-Twist-On Connectors junk? Stick with BNC Crimp-On or Compression Connectors?

Thanks guys! Any info if the Dahua DH-DVR2404HF-S is purchasable here in the US? I'm in California. I found a couple that look like older models.

Thank you for your insight adamxp12. It was stuck in my head, that using a hybrid NVR and utilizing the existing BNC cabling/cameras and running cat5 IP cameras for the new runs would've been easier. If I were to purchase a 24CH Dahua DH-DVR2404HF-S would the existing cameras, due to their age, be incompatible? I've read that the ONVIF 2.0 protocol cannot use motion detection function unless all cameras are Dahua. Or is that just for IP cameras? I've searched around for the DH-DVR2404HF-S, but seems only the 32CH model is available.

Come to think of it, my first install was a cat5 Samsung SDE-4001N. So there's another option using a cat5 system.

From the Southern CA area.