Here will introduce some technical details of these two types of cell phone jammer

cell phone jammer  is kept in the log
FIRST: residential first proprietary the PDCH necessary configured not hopping BCCH frequency point. LAST: the first district in the proprietary PDCH not configured on the frequency-hopping BCCH frequency. PT: cell reselection time of temporary punishment, used in conjunction with TO. Range: 0 to 31,0 on behalf of 20 seconds, 1 for 40 seconds, 20 seconds increments; PT = 31, serve to change the role of the CRO symbols, does not mean punishment time. TO: the reselection temporary bias, used in conjunction with PT. PT and CRO set C2 algorithm temporarily penalty time and punishment values; the use of these two parameters increase the difficulty to select the cell. Here will introduce some technical details of these two types of cell phone jammer .
Because it is a temporary punishment, fast-moving short-term occupation of the district is more effective to reduce the district re-election. CRO: cell reselection offset. Set is positive, to make easier to select the cell, set to a negative value (PT = 31) and difficult to select the cell to produce a strong impact on the GPRS service. CRH: cell reselection hysteresis. In GSM, CRH is the hysteresis value as a location area updates, only works on the edge of the location area of the district; However, in GPRS cell reselection hysteresis, each district to work, to some extent reduce frequent cell reselection. PING packet loss rate is higher. TEMS check the current region, the main coverage of the district. This kind of GPS cell phone jammer can be used in the vehicle equipped with GPS.
Will cause a loss in cell reselection; TEMS check the current wireless environment of the region, whether too high BLER; try another IP address to determine whether the server. The RLC layer rate. TEMS check whether the phone has been enough PDCH; TEMS check the current wireless environment, the RLC layer BLER is too high; TEMS check whether the primary cover cell in the current zone, resulting in cell reselection too often; by the OSS to check whether other users in shared PDCH; TEMS check the QoS settings to determine whether the QoS settings normal; check the PC in various settings is normal. GPRS lack of resources. There is also a mini type of GPS cell phone jammer .
GPRS insufficient resources caused by the PDCH allocation failures (PDCHALLFAIL) or pre-emptied (PREEMPTPDCH) to generate these cases by the STS statistics, road test the Gb interface tracking to find. PDCH allocation failure. View the corresponding period of GSM traffic conditions, such as TCH Congestion or less the average idle channel adjustment to the traffic, you can re-distribution, and increase the GPRS resources; view the corresponding period GPRS business conditions, such as GPRS traffic. TCH idle more, may be appropriate to increase the number of FPDCH; if the GPRS, GSM traffic is not high, you can change FPDCH position to determine whether the slot is bad, look at the cell configuration, such as CER, in-depth analysis. The antenna type of cell phone jammer is the external antenna type.