directional antenna signal distribution cell phone jammer
All 1.3.2 to antenna and directional antenna signal distribution
Omnidirectional antenna and directional antenna their signal emission performance and distribution as below:
1.3.3 common omnidirectional antenna and directional antenna
Omni-directional antenna with:
Small power blockers standard configuration includes a set of all have to the antenna, a set of omnidirectional antenna contains four or five root software whip antenna.
Directional antenna:
Small power blockers in certain situations need replacing directional antenna, directional antenna 1 set contains two antenna board.
How 1.4 outdoor installing waterproof, lightning protection
Blockers if is installed outside environment, cell phone jammer must be done well waterproof, lightning protection measures, is generally advice give blockers matching special installation box, this special installation box for metallic materials, the cabinet on both sides have 100 pages casing ventilated position (strengthen heat), box top opening the antenna (stretch blockers with hot melt adhesive sealing) pore, the casing is the base has the power input hole and diversion hole (to prevent water) :
Blockers if is installed outside environment, must be done well waterproof, lightning protection measures, is generally advice give blockers matching special installation box, this special installation box for metallic materials, the cabinet on both sides have 100 pages casing ventilated position (strengthen heat), box top opening the antenna (stretch blockers with hot melt adhesive sealing) pore, the casing is the base has the power cell phone jammer input hole and diversion hole (to prevent water) :
Testing a certain point range, whether in shielding in this position should be hand-held cell phone jammer above time maintain half minutes, to confirm whether by screen phone.
From the screen area if spoke by cell phone jammer pull toward shielding area, often going into a shielding area quite a distance phones will be completely after by shielding live, because the cell phone pulled a denier spoke by telephone, cell phone jammer phone itself has anti-interference ability, this kind of anti-interference will adjust under-voltage transmit power to ensure the normal calls. So generally don’t recommend state of making calls for dynamic measurement, and should in various sites by static test.
Will more after test shows, all elected a band shielding radius as the shortest distance in the region platform blockers effective shielding radius. For extensive bees in when they can nest type putting in this to estimate position. Google sites static test unsolicited.
1.5.2 through the signal strength test software
On the market at present much money smartphones can be installed testing field cell phone jammer phone signal the software, such as DuoPuDa smartphone, can install “Wucell intercontinental localization” software etc., used to test site 1800M phone signal 900M and field. The Internet also have much money can be applied to many smartphones (need difference between the cell phone jammer phone operating system) for downloading software can signal testing.
Users can contact suppliers to obtain relevant test software and installed on to their cell phone jammer telephones phones.
The present market condition common field through cell phone jammer phone software test signal only for 1800M 900M and basic shows, other shows test software not saw, is adopted to test the phone test software has certain limitation, can only be used as part of reference only.
1.5.3 through professional instruments
Test instrument generally includes: spectrum analyzer, road to measure meter, the ensemble measuring devices, special test cell phones, etc, the use of specialized equipment testing need professional technical personnel to be present. The measured data is more accurate, these data after after conversion can estimate for the ways to provide theoretical basis points.
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