... ,990MHz 2. Jamming signals: GSM, AMPS, HCMTS , CDMA , TDMA ,TACS , PCS Jet-990 Mobile Phone Intercept SystemThe Jet-990 is a tactical ... 'off air' GSM, AMPS, HCMTS , CDMA , TDMA ,TACS , PCS , Mobile phone Intercept system, designed to intercept all cellular telephone ... 1,800-1,990MHz 2. Jamming signals: GSM, AMPS, HCMTS , CDMA , TDMA ,TACS , PCS ,1. AC adaptor with DC input jack ...