Before purchasing such devices, one should consider a few important factors:
1) The blurred frequencies.
2) The typical jamming coverage.
3) The installation and the cooling system of the device.
First of all, just to make it clear, there are no such things as universal jammers, capable of blocking all of the existing frequencies. The only device that comes close to such a product is what we, usually, call a Bomb Jammer. But, there are several issues that have to be taken into account before handling such potentially dangerous devices.
Firstly, not everyone can afford such equipment, because they are expensive.
Secondly, there is the size issue, because they might be a little bulky, since you cannot hold it in your hand or hide it in your pocket, either. The smallest, yet the most complete one can be carried in a backpack, even though its antennas do exceed your height!
In spite of everything, there is one thing that must be said out loud; there is surely no need to jam every frequency, unless you are part of a government body, in which case it may be understandable.
Our advice to you is to make 100 percent sure you know the frequencies to be blurred, and then choose among the numerous products available on our catalogue.
So, let´s skip to the third point. Before proceeding with the purchase, make sure you know exactly the distance and the jamming range that need to be covered. The output power of a signal blocker is measured in terms of wattage (W), therefore the more Watts, the more the distance covered and its range.
And finally, although it might seem less important than the previous 2 points listed above, there comes the installation and the dissipation(cooling system) of the jamming device. Depending on where the device will be installed, you may get the best out of it and exploit it to the nth degree. Moreover, the potential overheating of a signal jammer results in a reduction of its performance, apart from being detrimental to its internal components.
Hence, it is highly recommended that you, absolutely, do not underestimate the importance of this last factor.
If you are looking for a device that guarantees constancy and duration of performance, h24 long, sneak a peek at our different categories on the left menu.