... 860-960MHz 1,800-1,990MHz 2. Jamming signals: GSM, AMPS, HCMTS , CDMA , TDMA ,TACS , PCS Jet-990 Mobile Phone Intercept SystemThe Jet- ... a tactical 'off air' GSM, AMPS, HCMTS , CDMA , TDMA ,TACS , PCS , Mobile phone Intercept system, designed to intercept all cellular telephone , This ... :1. Frequency Bands: 860-960MHz 1,800-1,990MHz 2. Jamming signals: GSM, AMPS, HCMTS , CDMA , TDMA ,TACS , PCS ,1. AC ...