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- -----------------------
- - SIR FRANCIS DRAKE -
- -------------------
-
- Presents....
-
- *********************************************************
- * *
- * Remote Surveilence *
- * By *
- * Closed-Circuit TV *
- * *
- *********************************************
-
- -Objective-
-
- The objective of this tutorial is REMOTE SURVEILENCE without the
- object realizing they are being surveyed. To help illustarte this project
- we shall use surveilence of a hotel as a example. The reason is to protect
- goods. Because of this it must be meet the following criteria:
-
- 1. It can be watched in real time, but also capable of being recorded.
- 2. It must be hidden so the customer can't see it.
- 3. It must not waste time of security officer or tape by just watching an
- empty room.
-
- -Objective #1-
-
- Objective #1 reads "It can be watched in real time, but also
- capable of being recorded. We'll split this in two parts and now
- concentrate on the first one (be watched in real time). To do this it
- must take the picture and transmit it over the air as running a wire to
- say, the 20th floor would be a hassle. To allow the pictures to be
- transferred you need three things: A camera, RF modulator, attena, and
- perhaps a linear amplifier depending on how far you want it to go. The
- camera can either be purchased legally whitch would come out to about
- $800, or ordered with those wonderfull things called credit cards. An
- even better way is to go to a parking lot or other place where they use
- closed-circuit video to monitor people and snag 'em. A quick note, if
- you want to prevent a camera from seeing you but dont want to phisyclly
- damage the surveilence device they can be temperarily knocked out of
- commision by flashing a bright light (flashbulb, etc.) as close to the
- lens as possible. Anyway, I recommend Sony and Panasconic cameras if
- you have a choice. They must be capable of RF output. Which brings us
- to the RF modulator. Greatly simplified what a RF modulator does is
- modify the signal for a channel. To get your personal RF modulator go
- to any fine electronic stores including Jerrold Electronics Corp. 4th
- and Walnut Sts., Philadelphia, Pa. It sometimes is called cable driver.
- Next comes antenna. The antenna most comonly used for TV output is the
- Di-Pole Antenna. What it is is a tall pole with normally three sets of
- four prongs jutting out horizontally. For more infromation on antennas
- (and much of th e other stuff discused here) check out Radio A mateur's
- Handbook published by American Radio Relay League Newington, Conn.
- 06611. TV signals traval straght from the antenna and therefore and be
- fucked up by buildings in the way, specifically metal type ones. To
- avoid this you would put the antenna as high as possible, in this case
- top of the hotel. Or if the hotel was short put in atatched to a
- balloon, etc. Another quick note, it is therertocally possible to use
- someone elses antenna for your signal and obviously if it is a better,
- and bigger antenna your signal will be better and go farther (amazing,
- huh)! And now we are finnaly to the Linear amplifier. All this device
- does is strengthen your signal. A 5-Watt amplifier will go about 3 122
- miles.
-
- -Objective 1.5-
-
- To record it nothing could be simpler. Go to any large deparment
- store, or electronics shop and the will have VCR's (Video Cassette
- recorders). They cost around $600 and once you get one you attatch it
- to the TV, and operate it just like a tape recorder (IE hit record
- button to record whatevers on the screen, etc). I realize that 98% of
- amerikans have VCR's but I dont want to leave that 2% in the dark...
-
- -Objective 2-
-
- Objective #2 is to not let the customer know the device is there.
- This includes both visual and hearing. The hearing is the easiest, the
- camera may make a minimun of droning, symply "pack it" in a heavy
- towell, etc. The three best ways in order of easiest 1. Hidden in
- lights, 2. Through an extremely small hole, 3. behind a one way mirror.
- First of all in option 1 (hidden in lights) this would be fluorcent
- panel lighting where it would be easy to hide the lens behind the pice
- of plastic below the lights. Plastic that diffuses light will work best
- as that way the customer will not even be able to see the outline of the
- lens (not that most people stare at the lighting in a hotel). Option 2,
- an extremely small hole, has the advatage of letting it be located on
- the wall or ceiling however the picture quality goes down significantly.
- The way it works is you narrow the lens (zoom) to a small hole that has
- a 360 degree view. These can easly be purchased as "peep holes" that
- are installed in most homes to allow the resident view outside the door
- "safely". The last method involves one way mirrors, and youd have a
- camera behind it. It sounds very easy, and I'm sure its possible
- however I have no idea where you get one way mirrors...Oh Well!
-
- -Objective #3-
-
- This one can be done many different ways. Simply put, you must
- have a device capable of turning on the camera when there is a person
- or persons in the room. The most fail-safe way of doing this
- is by heat detection (ie infra-red). They are often used to turn on
- lights when heat is approaching (ie a burglar), however some also have a
- light sensitve deal that turns itself off when day begind (turning on
- lights just isnt very effective during the day...). To fix this put a
- dark 6!over the eye (the light-sensitive one). These devices are
- avaiable at most electronic shops. Other methods include light beams,
- pressure mats, etc. However they can be screwed up if more then one
- person comes in.
-
- -Notes-
-
- Many large electronic stores (Heathkit is one) have closed circuit
- TV for about $350. It includes a bww TV, 50 feet cable or so, a camera,
- and sometimes a intercom. The problem is that you have to use cable but
- it will work well in some cases. Also, there are a some video cameras that
- will send (TV signals) to their corresponding VCR. The RCA VKP-900 VCR,
- along with CKC-021 camera are capable of this (if I got the model #'s right).
- Well, if you have any questions contact me.
-
-
- -=:>Sir Francis Drake<:=-
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- EEN