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mr.surveillance

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Posts posted by mr.surveillance

  2. Posted

    Scruit:

     

    If your are referring to a LM7812 or the equivalent added to a cheapo 12v adaptor they seem to work pretty good. I usually add a small filter cap for good luck.

     

    The MacGyver emergency power supply:

     

    Another dirty trick for an emergency, take your 18 vdc supply and put 7 diodes in series with the power lead and put a small filter cap on it. It wont be regulated but you will wind up with just a little over 12 volts.

    Yes I've actually done this for an emergency power supply.

  3. Posted

    Not much of a budget to work with.

     

    A good possibility for your application would be the Korean made OL70 bullet camera and you should be able to put two of them on a 500ma adaptor without a problem.

    I have sold and installed these and they are good performers in moderately low light and we also have one in use on our own system.

     

    Be sure the power supply you use is a 12 volt regulated one as an un-regulated supply will fry these and most other 12 volt cameras.

     

    Good luck!

  4. Posted

    My vote is for the Intellicam H.264 unit.

    I have had no complaints about these units and they are easy to access via internet explorer.

    If you are getting a machine for the retail enviroment I would suggest getting it with the CD or DVD burner, as most PDs seem to like the ability to have crime scene evidence in their possesion.

    Also as securitymonster suggested the Argus JPEG2000 units are excellent, I use one here, the remote playback (through the internet) is very slow but the archived video is of good quality. (local playback is swift and good)

    The decision is yours, good luck and please post with what you purchased and your end results...

  6. Posted

    Sounds like you have an un-regulated power supply.

    (DON'T USE IT ON YOUR CAMERAS!)

     

    A regulated 12 volt CCTV power supply will read 11.95 to 12.8 volts no load.

     

    A 12 volt supply that is un-regulated will typically put out 15 to 22 vdc unloaded and are used for chargers and items that have internal regulation.

     

    I have had customers fry cameras using Radio Shack un-regulated supplies.

     

    Remember: All electronic devices contain smoke and if you accidentally let it out there is no way to put it back in. If you let the smoke out you will have to replace the device.

  7. Posted

    Hello RORO from Ireland,

     

    Hopefully you won't be intruding on a cows private aural communication.

     

     

    I don't know the availability of these in Ireland but these work the best of what I've tried : model AA001 "audio pickup box" from intellicam, a very small inline pre-amplified to line level microphone that works on 12 volts. Why they call it a box I don't know.

    PDF spec sheet: http://www.intellicamusa.com/PDF/AA001.pdf

     

    I think this is more than adequate for your needs. I have experienced them picking up conversations in the room next to the one that has the mic. (same wall, other side)

    I hope this is what you are looking for...

  9. Posted

    I agree with CollinR!

     

    You wont get quality results with the budget constraints you posted.

    If you answer the questions posted we may be able to help you somewhat.

     

    What is this system to be used for?

    What is ment by "Cameras must have very clear video quality"

    How many cameras?

    What do you mean by "Cameras must not need separate power source"?

    Does your HD TV have a standard RCA video input?

    Can you allocate more funds for your system?

     

    You won't get Shelby performance from a Yugo!

  10. Posted

    Audio if you are in the USA:

     

    From a sign posted in my store:

     

    SURREPTITIOUS AUDIO - Any person who intentionally manufactures, assembles, possesses or sells any electronic, mechanical or other device, knowingly or having reason to know that the design of such device renders it primarily useful for the purpose of the surreptitious interception of wire, oral or electronic communications IS IN VIOLATION OF TITLE 18 U.S. CODE

    ........

    Some States it is legal if one party to the conversation/communication gives consent however some states (like here in California) all parties involved must give consent and posting that audio is being recorded does not imply consent.

     

    (Many government entities are exempt do to Homeland Security and various anti-terrorist laws)

     

    During the 90's and early 2000's the FEDS put many "spy shops" out of business. I always try to disclose what to my knowlege is legal or not.

    I do not sell audio devices to people that imply that audio devices will not be used in a lawful manner as it is illegal to do so.

     

    LEGAL USES: barking dogs, the neighbors kids loud car stereo and such.

     

    With video the only issue seems to be with "perceived privacy" IE: bathrooms, dressing rooms, bedrooms and the like, however under the same guise, A burgler that breaks into your home and has rampant sex with someone in front of your camera may not have the same "perceived privacy" protection do to not having any legal right to be there and commiting a criminal act to be there.

     

    There are exceptions, but I am not a lawyer, if unsure of your particular applications please contact one.

     

    Yes an external power supply is needed.

  11. Posted

    Questions:

     

    What is this system to be used for?

    What is ment by "Cameras must have very clear video quality"

    How many cameras?

    What do you mean by "Cameras must not need separate power source"?

    Does your HD TV have a standard RCA video input?

    Can you allocate more funds for your system?

    ............

     

    To be able to identify someone you will either need them close to the camera or have a tight angle lens. If using IR only if the subject is close to the camera they will look like a glowing ghost. Wireless cameras are not dependable or secure and require power. Motion detection is usually done in the DVR.

  12. Posted

    Usually a 1/3 is better than a 1/4 but I have not seen this 1/3 "camera in action and can't find any information on it using the model number.

    I have seen the Astak cm-906d wireless CCD camera in use before. Its not much but is excellent for the price.

     

    Bigger picture:

    http://us.st11.yimg.com/us.st.yimg.com/I/yhst-44056207512616_1989_1181459

     

    Specs: http://www.astak.com/CM906D.htm

     

    Please post what you decide on and your end result.

  13. Posted

    For the budget you posted The Astak CCD is about as good as your going to do. The one you posted is a 1/3" vs the Astak being a 1/4" CCD.

    The 017-CAM-400ir receiver looks just like the ones supplied with the cheap CMOS cameras on eBay.

    A good TX/RX setup without a camera will cost more than either unit.

    Whatever you buy be sure it is really a CCD type camera.

     

    Good Luck!

  18. Posted

    Thats been a good dependable camera for general applications however if you are depending on IR only illumination if the subject is less than 10-15' away they will glow white and look very scary, (which is typical for an IR camera), it has excellent color and detail in both daylight and most artificial lighting conditions. Wall mount or ceiling mount a very versatile camera. The focus and zoom are externally adjusted.

  19. Posted

    I had several sony 8mm units with defective tape transports and used them as CCTV cameras for over 2 years with no problems.

    (They look strange but work good!)

    Tape door open, camera mode on AC power.

    Good luck.

     

    BTW If you are using power from other than the Sony adaptor/charger and are connecting to the battery terminals be sure the supplied voltage is the same as the original Sony adaptor, if you supply it with the same voltage as the battery pack it will time out...

  20. Posted

    I sold a few G4-760 which is the same machine. It is a very good responding triplex machine however the picture quality from the recorded video is less than satisfactory. If your cameras have closeup views and adequate lighting you may be able to get by with this machine.

  23. Posted

    Very very expensive. A few years back I got to play with a cheap one, (approx $12,000 at the time) As I recall it had a germanium lense. It was part of one of my associates projects.

    What you are after is a thermal imaging camera I believe the military calls them FLIR, (forward looking infra red). I don't have any real experience with these other than about an hour around someone elses project. They don't align with any of the budgets around here.

    Anyway heres a link:

    http://www.tactical-store.com/thermal-imaging.html

     

    Also, Fluke has hand heald thermal imagers, no I didn't check the price.

     

    Have Fun!

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