CollinR
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Everything posted by CollinR
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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.
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No but I have tried the Little Valley, I would think GV800/GV1200 would be the limit.
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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.
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Need help to view my cameras on multiple TV's
CollinR replied to cfacomputers's topic in System Design
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. -
Question About CCTV Test Equipment
CollinR replied to fittertech's topic in General Access Control Discussion
yes If the question may be worded as "Should I have a multimeter if I choose to install CCTV?" the answer is, yes. -
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
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difference between NVR and DVR
CollinR replied to James_patageul's topic in General Digital Discussion
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. -
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.
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Geovision GV-800/8 with SQL GPS system on same computer
CollinR replied to security101's topic in Geovision
Are you asking if they will work togther or how to integrate the two? -
Low cost, Multi-port (4 min) PoE Hub?
CollinR replied to tazo's topic in IP/Megapixel Cameras and Software Solutions
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. -
Which DVR card provides the BEST capture quality?
CollinR replied to kujo999's topic in DVR Cards and Software - PC Based Systems
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. -
Geovision second camera display - loop thru card or Splitter
CollinR replied to kao's topic in Installation Help and Accessories
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. -
Pro install or a newbie install? Camera ripped off wall
CollinR replied to jpatz18's topic in General Analog CCTV Discussion
If you have bullet camera budget thats what you get, also not everyone wants a full on housing on their home. -
Go to dennies at like 3am and you'll seel the tools. They keep the tools at mcdonalds in the back.
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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.
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Bugs flying around my IR cameras, Tripping DVR record. Arghh
CollinR replied to cwd10's topic in Security Cameras
Thats why I sell IR seperately, it just doesn't work on the cam. -
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.
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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.
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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.
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Surveillance video grows despite little sign it helps
CollinR replied to thewireguys's topic in Test Bench
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. -
Be careful if the door is on the E or W side of the building. Will you get a bunch of backlight?
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Thats basically how Ir on the cam works, the cheaper the cam the worse the effect.
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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.
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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
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x2 it's great! I use it every chance I get! Even where there is no wireless!