What you should do before using the cell phone jammer?

What you should do before using the cell phone jammer?
Antenna gain with wavelength decreases (frequency increases) increased; antenna gain is also effective area increases with increased effective area increases and increased substitution (of (1.6) into (1.5) with (1.7) 1.7) which, which, (4πd / λ) 2 as the link loss or free space loss with Ls table to receive antenna gain. called the range equation range equation shown.The 101M portable mobile phone jammer applies imported IC. Gr is the receive antenna gain. equation (1.7) is called the range equation. 2007-08 Southeast University, State Key Laboratory of Mobile Communications 30 modern mobile communication technology 1.3 received signal power and noise power received signal power and frequency as a function of satellite applications: requirements of a satellite downlink antenna applications: to provide global coverage beam (beam to provide global coverage (beam width to the height of synchronization 17) If the frequency f in frequency if the width of 17o).The 101M portable cell phone jammer is self-researched and self-developed. If the frequency f1 (= c / λ 1) to provide global coverage, if the frequency f switch to provide global coverage, if the frequency switch f2, f2> f1, coverage will be reduced (for a given antenna, the coverage will decrease (for a given antenna, G = 4πAe/λ2, G increases, equivalent to increasing the traffic density = 4π, gathered in a smaller cone angle, and gathered in the smaller cone angle, the resulting beam width changes); it is necessary to reduce the size of the antenna in order to maintain narrow); it is necessary to reduce the size of the antenna beam width in order to ensure coverage or. permit coverage or wide beam, so global coverage increase in the carrier frequency of the antenna required to reduce the size. line carrier frequency increases in the need to reduce the size. received power as a function of frequency of Southeast University, 2007-08 National Mobile Communications Research LaboratoryThe 1010M cell phone jammer applies micropower perturbation technique. 1.3 31 modern mobile communication technology and the received signal power thermal noise power noise power all the thermal motion of electrons in the conductor will have a thermal noise, noise noise can be used for all thermal motion of electrons in the conductor will have a thermal noise power spectral density described in the frequency below 10 Hz power spectral density of thermal noise power spectrum to describe the density in the frequency of 1012Hz the following thermal noise power spectral density is constant, constant, it is called white noise process communication receiver thermal noise as additive white Gaussian noise (AWGN) process communication receiver thermal noise as additive white Gaussian noise (AWGN). thermal noise or shot noise of the physical model is the open circuit voltage of 4 mean square thermal noise or shot noise of the physical model is the open circuit voltage of 4kToWR mean square noise generator, the noise generator, which 2007-08 Southeast University, State Key Laboratory of Mobile Communications 32 modern mobile communication technology 1.3 the received signal power and noise power of thermal noise power by the noise generator coupled to the thermal noise power amplifier front-end a maximum of (1.8) 1.8 )