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CollinR

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Everything posted by CollinR

  1. CollinR

    PTZ basics, help needed.

    RS232 port If you add a GVNETIO you can use the cameras motion detector but that would be another pair of wires and not much point.
  2. No but I have tried the Little Valley, I would think GV800/GV1200 would be the limit.
  3. CollinR

    PTZ basics, help needed.

    You will need another wire running out to the camera for RS485 and IO controls to function. Alternatively you can get RS485 control through an "up the coax" system like coaxitron. Your DVR/NVR will need to support RS232 or RS485. You would control the dome with an on screen joystick and your normal mouse. Optionally Geovision and many others sell dedicated CCTV keyboards with joysticks to operate PTZ functions.
  4. CollinR

    Need help to view my cameras on multiple TV's

    You need to modulate onto an unused channel, further no channels within 3-4 of the modulated one. ChannelVision sells "notch" filters that will remove a series of channels if you so desire. That will work but you will need to switch inputs on the TVs and maintain the second cable plus loose having a spare. This will probably work best as your cable boxes may reject the modulated channels if they were not present in the original lineup. The best of all works is a client>server relationship between the displays and the sources. I personally use SageTV and I am thrilled with it's performance. However it would require Cat5 to each TV location and moving the cable boxes back to the data closet.
  5. yes If the question may be worded as "Should I have a multimeter if I choose to install CCTV?" the answer is, yes.
  6. CollinR

    Do I have a Ground Loop??

    x2 My vote, the cable runs too close to a: 1. electric motor 2. compressor (Air or AC use which usually has #1) 3. antenna or broadcast gear
  7. CollinR

    difference between NVR and DVR

    Marketing jibberish I say they are all DVRs just like Tivos, and Motorolas for Cable TV. If it records digital video it's a Digital Video Recorder.
  8. CollinR

    480p or 576p CCTV cameras with BNC

    Supposing you found one how would you capture from it? Normal capture cards are NTSC or PAL and hence interlace is part of the standard.
  9. CollinR

    Geovision GV-800/8 with SQL GPS system on same computer

    Are you asking if they will work togther or how to integrate the two?
  10. BTW with IP cameras the last thing you want is a hub, luckily ak357 linked you to a real switch. Hubs are cheaper (however they are kinda pre PoE) but pass all data from all ports, kinda like a splitter in a cable tv network. Switches are smart enough to recreate packets and trasmit them to the specific port required to connect to the destination. This isn't a problem with a couple few VGA MPEG4 cameras but can add up with MPJEG and certainly megapixel. You should also have a gigabit connection to the DVR.
  11. Hauppauge, but there is no software for it that I know of, it is much higher quality though. It's also about $75 per channel for hardware. These are all I use in my theater DVR systems, very stable and much higher quality but much more disk space too.
  12. Do as above but it's probably cheaper to do the loop through card and then a normal TV. This depends on how far the entrance is from the DVR and if you are using UTP or not.
  13. If you have bullet camera budget thats what you get, also not everyone wants a full on housing on their home.
  14. CollinR

    harbor freight camera

    Go to dennies at like 3am and you'll seel the tools. They keep the tools at mcdonalds in the back.
  15. CollinR

    harbor freight camera

    Everything from harbor frieght sucks I have reason to think the cameras would be any better. The air tools are as close to OK as you can get though. The power tools are a complete joke.
  16. Thats why I sell IR seperately, it just doesn't work on the cam.
  17. CollinR

    Use a quad splitter, with a DVR?

    I think he is talking about feeding a DVR from a quad so if it's a CIF DVR you would get 4 88x60 feeds in a CIF frame. Add in some questionable compression and I doubt the results.
  18. CollinR

    Use a quad splitter, with a DVR?

    I do this for live viewing on my media server, works well enough but my media server has a real D1 MPEG2 encoder and the quality of the result is night and day from most DVRs. ie DVD played through it is almost identical to DVD played via S video direct to the display.
  19. CollinR

    weird experience CAT5E

    You also must be more careful with Cat5 vs Coax, bend radius, max pull all differ but Cat5s light weight and easier dispence IMO makes up for it.
  20. CollinR

    Surveillance video grows despite little sign it helps

    I agree with the article, for city sized projects CCTV lacks a bunch. It's just too many square feet to be realistic. Traffic cams, weather cams and stoplight cams is about as far as realy useful goes.
  21. CollinR

    How are cameras from CCTV imports?

    Be careful if the door is on the E or W side of the building. Will you get a bunch of backlight?
  22. CollinR

    IR Issues

    Thats basically how Ir on the cam works, the cheaper the cam the worse the effect.
  23. CollinR

    Disappointed in Record Quality GV1240

    This is a combination of a variety of issues. What display are you watching this from? What is that display's native resolution? Is this a 4:3 aspect ratio? What is your Windows desktop resolution? (should be same as display's native resolution) What resolution did you install Geovision to run at? (might try 800x600 ) The analog cameras which you most likely have are limited to D1 resolution 704x480. Your Windows PC and display are capable of multiples of this resolution. Further 4:3 aspect ratio PC displays are getting harder and harder to find. Your video is interlaced and you must have deinterlace rendering turned off. First reset your recording resolution to 640x480 deinterlace then in the playback go into settings and enable deblock / denoise and deinterlace. When you playback in WMP it will use it's settings which does deinterlace thats why it looks better in WMP. NO matter how you play it full screen on a 1920*1080 it's going to look bad as it's been basically zoomed in 250% and stretched horizontially an additional 50% to fill the screen. Running Geovision at 800*600 makes the square video section on the left much closer to the 640*480 the video actually is.
  24. CollinR

    DD WRT firmware

    I'm using a WRT54G v8 from home now, even the new ones can work and proved extended functionality. (This model router is like $40 at wal mart.) I would love to try it on the Asus thats around now and supported. http://www.asus.com/products.aspx?l1=12&l2=43&l3=0&model=1121&modelmenu=1
  25. CollinR

    DD WRT firmware

    x2 it's great! I use it every chance I get! Even where there is no wireless!
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