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Signal Jammers: which one is best for you?

26-02-2015 21:17 - News
Before purchasing a frequency blocker, it is advisable to take into consideration a few factors:

1. The frequencies of the devices we care to block.

2. The output power of the device we want to jam.

3. The output power the jammer ought to have.

4. The distance covered by the jammer.

5. Whether the power source is a battery or through direct-current.

6. The amount of time the jammer needs to be in operation for, and its pertaining cooling system.

Let´s examine in detail the importance of each point.

1. The frequencies used by the device we need to jam:

In order to jam a device, one should first consider the frequencies used by the device itself. Only then, can we lay our eyes on the product we intend to purchase.

2. The output power of the device we intend to nullify:

Depending on the output power of the device, one should buy a jammer that has a greater output power, so as to block the radio transmission of the device.

3. The output power the jammer needs:

This is a fundamental point, because in order to cover a certain area or to jam a specific device, you should first know the output power a jammer owns.

4. The distance a jammer should cover:

It is very important to know the environment we need to cover. The more Watts of the jammer, The more the distance covered, as opposed to a jammer with less Watts.

5. Direct-current, battery or both?

Another important factor that needs to be considered is to know whether the area, in which the jammer will be installed, has a direct current plug. In absence of which, the device must clearly be battery-powered.

6. The amount of time the jammer has to be in operation for and its relative cooling system:

The cooling system is the most underrated factor when purchasing a jamming device.

The latter is not an error to overlook: without a proper cooling system, the jammer will encounter 3 main issues:

After a few minutes, the quality of the performance will drop exponentially.
Its temperature will start to increase, therefore permanently damaging its components.

The lifetime of the device will be much shorter than that of a usual jammer with an appropriate cooling system.

Only after considering all of the afore-said, would you really be sure of choosing the right signal jammer that meets your specific demands.

How can I safeguard my privacy against GPS locators and cellular frequency microphones (bugs)?

If you intend to secure your car, all you need is a jammer that is able to block cellular frequencies and GPS, within 5-15 metres range. We would strongly recommend jammer B39EVO.

I have heard about Lojack locator systems. How can I protect my car and myself against such devices?

Although Jammer B39EVO combines in itself Lojack frequencies , it is not able to jam them, because of point N° 2 we discussed about. The output power of a Lojack transmitter is far higher than any portable pocket-sized jammer. The only solution that makes up for that issue is a desktop jammer which can also be placed in a car.

Examples of such devices are Jammer B69 and B69L. Use the search box on top left and type in the code b69 to see its technical specifications.

These "bad boys" are capable of disrupting an ordinary 3W Lojack transmitter by means of a UHF band radio with an output power equal to 20W, in order to cover more than 100 metres.

How can I protect my car against potential bugs and micro-cameras?

Normally, bugs and micro-cameras transmit data at cellular frequencies, such as GSM and 3G.

Why is that?

Whereas in buildings and houses it would be preferable to install radio frequency bugs, which, by the way, can easily transmit via repeaters or also through your LAN ADSL Wi-Fi connection reaching a considerable distance, it would be rather unlikely to see that happening in a vehicle.

That is why we suggest purchasing jammer B39EVO.

How can I secure my house/office against hidden microphones(bugs)?

Now, the matter gets a little tricky. Given the wide sets of bugs available on the market, which transmit at several frequencies, it is advisable to purchase a device capable of covering as much bands as possible. Our personal suggestion would be the following jammers: B53EVO and B68H.

B53EVO jams all of the:
VHF/UHF radio frequency microphones.
Cellular frequency bugs.
2.4 - 2.5 GHz. Radio bugs, Wi-Fi/Bluetooth.
GPS Locators.
3G and 4G LTE micro-cameras.

B68H, on the other hand, blocks all of the:
Hidden microphones which transmit data via cellular frequencies(GSM, GPRS, 3G and 4G).
High radio frequency using bugs(5100-5500-5900MHz).

The installation of above-mentioned devices will guarantee maximum security, within 20-50 metre range.

I would like to test my alarm system phone dialer. Which jammer should I buy?

In order to nullify the data transmission between your alarm system phone dialer and the central monitoring station, it is first necessary to make sure on which frequency your alarm phone dialer transmits.

For insurance policies, there is definitely a GSM phone dialer, which is supported by a low/high radio frequency transmitter.
In this specific case, it is essential to opt for a jammer with a substantial amount of output power, if possible with directional antennae included.

The suggested jammer would be B42EVO. Thanks to its output power and directional antennae, B42EVO manages to reach a considerable distance, apart from being able to penetrate walls (clearly the operating range decreases depending on the kind of wall separating the jammer and the alarm system phone dialer).

Otherwise, if you want to block low VHF UHF radio frequencies, we would suggest that you check jammer B69.
Part of the B42EVO family, B69 features a great amount of output power and it also comes with directional antennae which allow to reach enormous distances.

Lastly, to inhibit high radio frequency transmitters (usually 5100-5500-5900 MHz) we would recommend jammer B68H.

CAUTION! The choice of the antennae is fundamental.

If you intend to concentrate the act of interference in a certain specific point, then you´d better opt for a jammer with directional antennae., in which case all of the power of the jamming device is focused on the point of interest, exploiting 100% of the power. Unlike a jammer with omni-directional antennae, which exploits only 50% of the total power.



Source: Alessandro Telich, Imperial Eagle DWC-LLC
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