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newtype

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Everything posted by newtype

  1. FYI HD-SDI systems Few notes based on field observations * Quality is as good as IP cameras with 2 MP that's around $300-400 range * Best quality : HD box camera + Tamron Mega Pixel lens -> IP cameras look better because they have outstanding lenses, hence the cost goes up. -> It still is lower than typical IP camera setting * Cable and connector qualities are very very important for Hd-SDI. : This is very hard to determine since every cable and connectors are same in spec. Ask manufacturer for recommended cables and connectors. HD-SDI is derived from broadcasting technology. The coax cables and connectors for HD-broadcasting give the best results, but are extremely expensive. Like the other post, some cables (yes, especially ones made in China) do not transmit as well. But some low cost cables tend to outperform high quality Bosch HD coax cables. Connectors MUST be 75 ohms. Otherwise the distance and quality drop significantly. * HD-SDI video in 1080p can go 300~900 ft depending the cable quality. (Again, hard to pinpoint. IP cameras go around 400 ft on the other hand.) HD-SDI repeaters and extenders are more readily available nowadays. * HD-SDI extenders often do the trick by lowering video quality. Smaller video size. Be aware! *There is almost no lag in HD-SDI live monitoring. Although it's not always 100% real time. Still better than IP camera live view. I have seen 5 second+ lag in IP camera monitoring. * It takes less time to install HD-SDI. On IP cameras, you must set network on each camera before you install and test settings. * HD-SDI has same 2 MP resolution. You can't adjust the lens accurately with hand held monitor (through composite output on HD cameras). Lens adjustment is not too easy. * Better to go with Fixed lens HD-SDI in regular environment. This reduces installation time dramatically. * HD-SDI cameras draw more power than analog cameras. * Video storage issue is about the same as IP camera settings. It eats up HDD a lot more than analog. these are just few things to consider with HD-SDI. Hope that helps.
  2. Don't they have a dedicated software to use? Better to use the program. (Most DVRs do not have Mac compatibility. Check if it has software for Mac) See if you can see on the phone (assuming DVR provides app for it). If you can see it, port forwarding is done, and it's ready. Good luck. PS. Make sure you have a modem, not modem/router combo, before this TP link.
  3. I used to work at NetPromax. PM me so I can send you a link to download files. Andy
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