How to Choose A Jammer (gps/gsm/3g/wifi)

Block mobile phone signal use JMT & JMA.
JMT is portable model, JMA is desktop model
Jamming range of JMT is 0.5-10 meters, of JMA is 20-50 meters.

Block GPS signal only, use GMC07 or GMT04.
GMC07 could use in a car only. GMT04 could use in car, house, office etc.
Working frequency and jamming range of GMC07 and GMT04 are the same.
Both GMC07 and GMT04 could only block the track/navigation devices works on GPS L1 system only.

Block GPS/GSM or GPS/GPRS, use GMT05, GMT05V, or GMT09.
Why should we block GSM&GPRS...Some of the tracking device works not only on GPS L1, but also use GSM or GPRS networks for optimize location information. When against such devices, if jam GPS L1 only, they could also get route information.
GMT05 and GMT05V could block GPS L1, GSM900, CDMA800, PCS1900 and GSM1800.
GMT09 could block all of the frequencies of GMT05/GMT05V and UMTS2100MHz (3G).
Output power of GMT05, GMT05V and GMT09 are the same. However, the actual jamming range of GMT09 is larger.
The difference between GMT05 and GMT05V is, the GMT05V could also works on AC/Car power directly. GMT05 could only source power from battery.

Block GPS and mobile phone, use GMT09 and GMW08.
Both models could block GPS L1 system, networks of GSM/GPRS and also 3G(UMTS/W-CDMA mobile phone networks).
Working frequencies of GMT09 and GMW08 are the same.
Jamming range of GMT09 is 5-15 meters, of GMW08 is 20-40 meters.
A GMW08 is features by good heat dissipation.
These two devices featured by separated switch for control GPS/Mobile jamming band.

Block Wifi/Bluetooth connections use WBJ01, WBJ02 or WBJ03.
WBJ01 block wifi/bluetooth only.
WBJ02 block wifi/bluetooth and GSM/GPRS networks.
WBJ03 block all the frequencies WBJ01 & WBJ02 working on, and also block UMTS2110MHz.
WBJ03 could also works on AC/Car power directly, WBJ01 & WBJ02 source power from battery only.
Output power of wifi/bluetooth band of them all the same, however, the actual jamming range of WBJ03 is larger.

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How to Choose A Jammer (gps/gsm/3g/wifi)