• How do I set up my wireless camera?
• What does CCD and CMOS mean and what's the difference?
• What is an optical cable and how does it work?
• What is the difference between regulated and unregulated power supplies?
• How do I measure my DC power connection?
• How do I wire my Scart or S-video Connection Plate?

• Screw the ariel tightly into the receiver
• Plug one end of the phono (RCA) cable in to the Video out on the receiver and the other end into the Video input on your TV/VCR. Do the same for the audio if you bought a wireless camera with audio.
• Power up your receiver with a standard 9V battery (a new Duracell battery is best) with the battery clip provided or using a 9V 300mA/12V 500mA DC power adaptor, Red LED should light up on the receiver. (all power adaptors must be center positive like the ones we sell)
• Power up your camera with a standard 9V battery (a new Duracell battery is best) with the battery clip provided or 8V 300-500mA DC power adaptor if you have a 8V camera or using a 12V 500mA power adaptor if you have an 12V camera (all power adaptors must be center positive like the ones we sell) Note: If you bought a 1500mW transmitter you will need to power that using a 9V 1A (1000mA) DC Power adaptor.
• Some camera may come with a rechargeable battery like the JEN8310 in that case make sure you charge battery for at least 4 hours before use.
• Place your camera at least 1 meter away from the receiver
• Turn the tuning knob on the back of the receiver very slowly until you get a stable picture from your camera.
• Focus usually comes pre set but you can change it to best suit your needs by twisting the lens, this only applies to cameras with the adjustable lens so ask us if you aren’t sure.
• Example setup pictures for:
• JE802
• JE803
• JEK801AN
• JEN8310
• JECIG
• JEPENHOLDER

What does CCD and CMOS mean and what's the difference?

• You may have heard of CMOS or CCD when buying a digital camera, camcorder or CCTV camera. The abbreviation CCD and CMOS refers to the type of sensor that is behind the lens to pick up light. To understand the difference and what they do please read on.
• Both CCD (charge-coupled device) and CMOS (complimentary metal-oxide semiconductor) image sensors start at the same point: they have to convert light into electrons. One simplified way to think about the sensor used in a CCTV camera is to think of it as having a 2-D array of thousands or millions of tiny solar cells, each of which transforms the light from one small portion of the image into electrons. Both CCD and CMOS devices perform this task using a variety of technologies.
• The next step is to read the value (accumulated charge) of each cell in the image. In a CCD device, the charge is actually transported across the chip and read at one corner of the array. An analog-to-digital converter turns each pixel's value into a digital value. In most CMOS devices, there are several transistors at each pixel that amplify and move the charge using more traditional wires. The CMOS approach is more flexible because each pixel can be read individually.
• CCDs use a special manufacturing process to create the ability to transport charge across the chip without distortion. This process leads to very high-quality sensors in terms of fidelity and light sensitivity. CMOS chips, on the other hand, use traditional manufacturing processes to create the chip: the same processes used to make most microprocessors. Because of the manufacturing differences, there have been some noticeable differences between CCD and CMOS sensors.
• CCD sensors, as mentioned above, create high-quality, low-noise images. CMOS sensors, traditionally, are more susceptible to noise.
• Because each pixel on a CMOS sensor has several transistors located next to it, the light sensitivity of a CMOS chip tends to be lower. Many of the photons hitting the chip hit the transistors instead of the photodiode.
• CMOS traditionally consumes little power. Implementing a sensor in CMOS yields a low-power sensor.
• CCDs use a process that consumes lots of power. CCDs consume as much as 100 times more power than an equivalent CMOS sensor.
• CMOS chips can be fabricated on just about any standard silicon production line, so they tend to be extremely inexpensive compared to CCD sensors.
• CCD sensors have been mass produced for a longer period of time, so they are more mature. They tend to have higher quality and more pixels.
• Based on these differences, you can see that CCDs tend to be used in cameras that focus on high-quality images with lots of pixels and excellent light sensitivity. CMOS sensors traditionally have lower quality, lower resolution and lower sensitivity. CMOS sensors are just now improving to the point where they reach near parity with CCD devices in some applications. CMOS cameras are usually less expensive and have great battery life.

What is an optical cable and how does it work?

• Fiber optics (optical fibers) are long, thin strands of very pure glass about the diameter of a human hair. They are arranged in bundles called optical cables and used to transmit light signals over long distances.

• If you look closely at a single optical fiber, you will see that it has the following parts:

• Core - Thin glass center of the fiber where the light travels
  Cladding - Outer optical material surrounding the core that reflects the light back into the core
  Buffer coating - Plastic coating that protects the fiber from damage and moisture

• Hundreds or thousands of these optical fibers are arranged in bundles in optical cables. The bundles are protected by the cable's outer covering, called a jacket.

• Suppose you want to shine a flashlight beam down a long, straight hallway. Just point the beam straight down the hallway - light travels in straight lines, so it is no problem. What if the hallway has a bend in it? You could place a mirror at the bend to reflect the light beam around the corner. What if the hallway is very winding with multiple bends? You might line the walls with mirrors and angle the beam so that it bounces from side-to-side all along the hallway. This is exactly what happens in an optical fiber.

• The light in a fiber-optic cable travels through the core (hallway) by constantly bouncing from the cladding (mirror-lined walls), a principle called total internal reflection. Because the cladding does not absorb any light from the core, the light wave can travel great distances. However, some of the light signal degrades within the fiber, mostly due to impurities in the glass. The extent that the signal degrades depends on the purity of the glass and the wavelength of the transmitted light (for example, 850 nm = 60 to 75 percent/km; 1,300 nm = 50 to 60 percent/km; 1,550 nm is greater than 50 percent/km). Some premium optical fibers show much less signal degradation -- less than 10 percent/km at 1,550 nm

What is the difference between regulated and unregulated power supplies?

• A regulated power adaptor will always give out the voltage stated no matter what the load on the adaptor is. This allows you to get a regulated power adaptor with the voltage you need and any mA rating as long as its above or equal to what the device requires. Regulated power adaptors are generally twice the cost of an unregulated one.

• A unregulated power adaptor's voltage output is dependent on the load on the adaptor. This is why when using a unregulated power adaptor you must match the mA rating of your power adaptor to the mA rating of the device or you will end up with the wrong voltage. For most unregulated power adaptors the load must be at least 85% of the mA rating to give out the correct voltage.

How do I measure my DC power connection?

• The most common way to measure your DC plug or socket is by measuring the outer diameter of the pin on the socket side or the inner diameter of the hole on the plug side. See images below.

• Unfortunately due to the size difference most times measurements must be taken with a caliper. If you do not have a caliper we do sell DC adaptors for £1.49 in both 2.1mm and 2.5mm. This will allow you to figure out what size cable you may need.

How do I wire my Scart or S-video Connection Plate?

• Scart connection plate
• Please note that the cables do no run from pin to pin, but some switch over from one end to the other.
• Treat the Screen End column as the wall plate to be mounted next to the TV or Screen which will be connected.
• Treat the Source Equipment end as the wall plate to be mounted next to the device you are using to feed the screen.
• Each line represent a single cable, so pin 1 Audio right in should be connected to pin 2 Audio right out at the other end (see table below).

  

• Table of connection pins below

• S-video connection plate