How is the effective shielding distance of mobile phone signal jammers measured?

There are many ways to determine the effective jamming distance of a mobile Cell Phone Jammer and test and verify it. Today we will introduce a practical method.

A reliable way to test the effective jamming distance is to use multiple mobile phones of different frequency bands for on-site field testing. This method can comprehensively evaluate the jamming effect of the signal jammer, and it is convenient, worry-free and feasible. Unlike relying solely on mobile phone testing software or professional instruments, this method is easy to master. The steps are as follows:

1. Prepare mobile phones of various frequency bands, including Mobile, Unicom, PHS and 3G (there are three standards: Mobile TD-SCDMA, Unicom CDMA2000, and Telecom WCDMA).
2. Start the mobile phone signal jammer and hold each mobile phone separately.
3. Gradually test the effective jamming radius of the signal jammer from near to far. It is recommended to use the signal jammer as the test starting point and test the jamming distance in multiple directions at the same time.

When checking whether the mobile phone signal is blocked, you cannot rely solely on the signal strength displayed on the mobile phone, because sometimes the signal strength is inaccurate and cannot reflect the current communication status. Instead, you can use your mobile phone to intermittently call local toll-free numbers or landlines. If the call fails, it means that the phone is still within the jamming range. If the call is connected, it means that it is beyond the jamming range.

After testing all frequency bands, select the frequency band with the shortest jamming radius as the effective jamming radius of the mobile phone signal jammer in a given area. This estimate can guide the deployment of jammers in a larger area.

The above method provides an effective and direct way to test the radius of the jammer in a specific environment. However, it is important not to make judgments too early. The effectiveness of the jammer will be affected by nearby base stations. If the jammer meets the requirements of the test site, it can be used with confidence. Best-selling WiFi jammers and GPS jammers in Europe and America.

Note that when testing whether a specific location is within the jamming range, keep the phone in that location for at least half a minute to confirm whether the mobile phone signal is blocked.

When calling from an jamming area to a jamming area, it may take a considerable distance for the phone to be completely shielded. This is because the phone itself has the ability to resist interference once a call is initiated. This resistance causes the phone to adjust its transmission power to ensure that the call is successful. Therefore, it is generally recommended to perform static testing at various points rather than dynamic testing during active calls.

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