SIGNAL BLOCKER

The frequency band used for campus broadcasting is the wireless signal from the low frequency band of 88MHz-108MHz, and campus broadcasting only needs to cover the entire university, and does not require the propagation distance to be too far, so the transmission power of general campus broadcasting transmitters is not large. So the signal is relatively weak, and it is more than enough to cover the entire campus without interference.

The signal frequency emitted by the mobile phone signal shielding device is the same as the signal frequency used by the mobile phone, and there is no frequency band that is repeated or similar to the campus broadcast. Therefore, in theory, after the cell phone jammer is turned on, it will not cause any interference to the campus broadcast. But at present, after the mobile phone jammer is turned on, it will raise the bottom noise near the jammer to a certain extent within a certain range. If the radio is too close to the jammer, the raised bottom noise is very likely to transmit the signal from the campus broadcast. Submerged, when the radio receiving the campus radio frequency will be jammed.

The campus broadcast transmitter can also adjust the transmission frequency of the broadcast signal. Using the transmission frequency of different frequency bands, the interference situation is also different. You can try to adjust the transmission frequency of the campus broadcast transmitter, and then test to find out the interference to the campus broadcast radio. The smallest frequency band is used for signal transmission. If this method still can't solve the interference problem, then you can only turn off the cell phone signal jammer during the listening test, and then turn on the cell phone jammer after the listening test is over.

Signal Jammer For Sale

The EOD jammer, also known as the police signal jammer, is mainly used in the EOD scene of some remote-controlled bombs, as well as in some special tasks such as the arrest of suspects. The jammer can be divided into, Various types, tow box, vehicle and knapsack. These three types of jammers are also different in use, and each has its own advantages. Before using the tow box type EOD jammer, it is necessary to confirm whether the built-in battery has electricity. It is best to charge the tow box type jammer after the previous task is performed until the battery is fully charged for the next execution. During the detonation task, avoid the equipment not reaching the normal working time because the battery is not fully charged.

Before the box-type police jammer is turned on, it is necessary to match the antennas of the radio frequency modules of each frequency corresponding to the signal frequencies, and fully tighten them to avoid virtual connections, otherwise the jammer module will not be able to output normally, resulting in module failure.