QS Supplies Stocks and Sells Electrical Cables and Wires. Computer wires and network cables such as CAT5, CAT6 are also now available and can be even purchased online from our site.

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Electrical Cables
Alarm Cables, Video Cables, Power Cables, Alarm Cables.
Thermostatic Valve

QS Supplies Stocks Cables, Wires, Electric Cables, Video Cables, Power Cables, Alarm Cables and computer cables at discounted rates.

This is Alarm cable. For alarms and other low voltage wiring.

100m. Trade core colours. Use to wire burglar alarms and low voltage circuits.

Telephone Cables 2 Pair 4 Core 100m 100m. White, plastic, protective sheath for indoor use.


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Video Signal Transmission & Home Surveillance

Sooner or later, when you try to make up your mind for selecting the best Surveillance Camera for your own Home Security, the question will pop up. What is the best method for transmitting the video signal from the Camera to the Monitor?

Or is it the cable (one of a few types) that assures best reception and faultless operation? Is it the wireless way whereby the radio signal originating at the emitter is caught and decoded by the receiver before being forwarded ?

If you leave the choice to the salesperson, your answers to the questions asked should hopefully point to the best solution. But why should one give up one’s right to study the matter and make one’s own decision ?
Unluckily, as most often happens with technological solutions, the answer is not absolute and clear cut. Also “the best” is not a useful qualifier, in that it should be restricted by the condition “with reference to what ?”

In effect one should decide if “the best” is meant to be price, or the ease of assembling, or the fidelity of transmission, or avoidance of interference, and so on.

One has to evaluate advantages and limitations of each method, and try to see which one, all things considered, is the most appropriate for the specific case in question.

The compensation of the wireless solution are essentially the ease of set up and of mobility, in that changing location is straightforward, and the fact that the receiver and recorder can be hidden away so as not to be tampered with by somebody willing to destroy the proofs.

Boundaries are probably the distance that cannot be exceeded for best reception and the possible interference from other appliances that can degrade the quality of reception.

The advantages of coaxial cable transmission, one of the most used wired methods, are longer distance reachable, higher fidelity of transmission and less disturbing interference.Limitations are the necessity to lay down the cables in the house, making holes in walls to pass from one room to the other and the need to fasten the cable to the wall with proper clips every short distance.