Thursday, August 30, 2012

The enterprise can enhance the product quality of Cell Phone Jammers

The enterprise can enhance the product quality of  Cell Phone Jammers .
To place calls, the user must first dial-up, and press the launch of the GSM mobile phone keys. The mobile phone the ARFCN locked its base station system to launch RACH burst data sequence. Then the base station the AGCH information on the CCCH to respond, CCCH specify a new channel for mobile phones SDSSH connection. Is monitoring the BCCH T, users receive from AGCH to the ARFCN and TS arrangements, and immediately transferred to the new ARFCN and TS, the new ARFCN and TS distribution is SDCH (the TCH). Once transferred to the SDCCH user first waits to pass it the SCCH (wait for 26 or 120ms). The testing can make up to the defect of the quality assurance of  Cell Phone Jammers . 
Clock periods is recognized as the CPU to release the data, so that the controller in this send response message. I2C bus to read and write timing. Between every data transfer on the I2C bus master, there is no data transfer, the SDA and SCL are on the pull is high, and when the need for data transmission, the master first generates a start signal (both SCL is high, SDA to be pulled low on the falling edge), then pass a data bit in each SCL clock pulse occurs, until the master generates a stop signal (both SCL high, SDA to the master release rising edge) so far. I2C bus master first sends controller 7 address and read / write a byte. Here presents the finish products of  Cell Phone Jammers .
The phone reads the information of the synchronization channel (SCH) to find the base station (BTS) any code, and synchronization to the number of ultra-high posts TDMA posts. Read before handling the call, the phone systems. Such as: the countries neighboring district, the district in which the frequency of use and whether the district can use the mobile system number and network number, etc., the information in the BCCH on the phone issued at the request access channel (RACH) access request, the SIM card account information sent to the system. Qualified in the authentication system, by allowing access channel (AGCH) GSM mobile phone access channel assigned to the GSM mobile phone is a stand-alone Dedicated Control Channel (SDCCH). Not only the process quality of  Cell Phone Jammers  is key. 
USB-function character concave engraved on the body, pull the hand positions can be stretched out style made recessed dig a tongue part is the USB rubber plug inserted into the USB connector to prevent loose pasterns, Plungers USB glue plug fixed on the shell upside down, can be made outside of the plug-in or direct pressure (stuck in between the shell). similar structure of T-FLASH card or SD card of the stopper on the phone a little longer the stopper can also be made of P + R structure, namely, body, pull the hands of some hard plastic material, the inside of the plug together, the fixed part of the soft material, hard plastic material and soft material between the glue in with the structural design of the screw hole rubber stopper. The screw cap will affect the appearance of the exposed surface of the phone, you must cover the screw hole rubber stopper. The defect is not existing in the current batch of  Cell Phone Jammers .

No comments:

Post a Comment