Function 1: Tape recording interference
(The recording equipment jammer does not make any sound when it is working) It can interfere with the recording of all tape recorders. During the test, the RN-502A tape interview machine of Japan's Panasonic was used. The best interference distance is 6 meters in radius. to 90%. The effect of 10 places can reach 85%, and it can reach 75% at 12 meters. All that is recorded is noise.
Function 2: Digital recording interference
The test uses South Korea's R200 digital voice recorder. The best interference distance is 1.5 meters, and the recording is full of noise. At 2.5 meters, the effect drops to 75%. Occasionally, I hear voices, but I can't understand them. At a distance of 3 meters, the effect drops to 30%. The recorded sound will have noise, but it can be understood. After installing the directional interview microphone, the test effect is better. The sound recorded at a distance of 4 meters is all noise, and the intermittent speech can be heard at a distance of 6 meters, and the effect reaches about 60%.
Function 3: Wireless/Wired Eavesdropping Interference
The capacitive microphone wireless eavesdropping device used in the test has a frequency of 118MHZ and a transmission distance of 100 meters. The sound heard is complete noise, the voice of speech cannot be heard. Tests have shown that as long as it is a capacitive pickup, it can interfere with the sound. Therefore, it is proved that both wired and wireless bugs can interfere and prevent the eavesdropper from hearing the sound.
Function 4: Recording interference of wireless camera equipment
The test uses a 1.2G 10MW wireless pinhole camera. Under the action of the jammer, the image does not change, and the sound becomes noise. The optimal interference distance is 4 meters.
Function 5: Interview microphone interference
The test uses a super-directional microphone dedicated to the TV station. The optimal interference distance is 5 meters. The effect is worse at 8 meters, and the sound will be heard at 10 meters.
Function 6: Remote control open
The remote control distance can reach 15 meters. The circle key is to turn on the red indicator, and the oval key is to turn off the green indicator. The response time of the machine when it is turned on and off is about 3 seconds.
Function seven: electronic clock
It has the function of an electronic clock, showing hours and minutes, for example: 12:18 = 12:18.
