Skip to content

News

Can the portable frequency jammer be adjusted to improve the coverage of the shielded signal?

by LIU YIFA 15 Jul 2025

After purchasing the portable frequency signal jammer for sale, some customers are very enthusiastic to put the shielding equipment into actual combat tasks quickly, but sometimes they will give some feedback: the coverage of the shielded signal is a bit small. And after changing different working environments, it feels that the shielding distance of the shielded signal is larger in some scenarios and smaller in others. They asked us what's going on?

First of all, the transmission power of the portable frequency jammer itself is fixed. That is, the intensity of the shielded signal it emits is relatively stable and will not fluctuate. In different environments, there will be several factors that affect the coverage of the shielded signal, such as: the distance of the base station, the error of the building or wall obstacle, etc., which will directly affect the effective shielding distance of the shielded signal.

GPS Jammer

Secondly, the placement of the portable frequency jammer is also critical. Since its main box height is about 70cm, its antenna is directly screwed on the main box, that is to say, if the portable frequency jammer is placed directly on the ground, the height of its transmitting antenna is generally not more than 1 meter from the ground. To increase the coverage of the shielded signal, the simplest way is to increase the height of the antenna from the ground. When the height of the antenna increases, the effective shielding distance of the shielded signal will be greatly increased.

So, what are the ways to increase the height of the antenna? We recommend that users should first observe the terrain and topography on site, and try to choose the highest point to place the portable frequency jammer. Or use some desktops, steps or buildings, etc., and try to use these locations to increase the height of the portable frequency jammer.

There is another way: you can choose our company's antenna bracket, connect the antenna of the portable frequency signal jammer for gps to the host through a 3-meter-long feeder, and install the antenna on the bracket. Our customized antenna bracket can support the antenna to a height of 3 meters.

Signal Blocker Image Gallery

Prev post
Next post
Someone recently bought a

Thanks for subscribing!

This email has been registered!

Shop the look

Choose options

Recently viewed

Edit option
Back In Stock Notification

Choose options

this is just a warning
Login
Shopping cart
0 items