Optima iii gps jammer hackerf - how do you build a gps jammer

Product Name: GSM 900MHz Ics Pico Repeater , Digital Signal Booster Working Frequency: Customizable Dimensions: 151mmX 151mm X 26mm Weight: 1kg GSM 900MHz Ics Pico Repeater , Digital Signal Booster   Model: VR-1575-G-I   Product Instructions               The GSM900 PICO Repeater is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage and communication quality in GSM900 system. And its easy installation and maintenance can help carriers get fast return.       The repeater is working as a relay between the BTS and mobiles. It receives the low-power signal from BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.   Product Features    High system gain  Linear power amplification to effectively suppress inter-modulation and spurious emission  Smart Automatic Level Control (ALC) ensures output level stable and adjustable continuously  Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink  Working frequency bandwidth adjustable   Applications   To expand signal coverage or fill signal blind area where signal is weak or unavailable. Indoor: Hotels, exhibition centers, basements, shopping malls, offices, parking lots Application Diagram   Technical Specifications   Items Specifications Working Frequency (customized) Uplink 890MHz -915MHz(customized) Downlink 935MHz -960MHz(customized) Output power Uplink 10dBm Downlink 15dBm Maximum Gain ( UL and DL ) 75 dB Setting of attenuation 30 dB attenuation System noise figure 5dB @ max. gain AGC ( Automatic Gain Control ) Auto isolation detection and gain control Power supply 100 V - 240 V AC 50Hz RF Input / Output connectors SMA-female Interface Software Window 7/Vista/XP base Interface Cable Interface cable USB ( Laptop ) to Repeater Repeater Setting Able to manually set gain and attenuation Weight 1 Kg Size 151mmX 151mm X 26mm I/O Impedance 50Ω Serving antenna Using external antenna Input Max. for normal work -55dBm Gain Stability 3dB ICS Features 20 dB isolation improvement    

optima iii gps jammer hackerf

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Optima iii gps jammer hackerf - how do you build a gps jammer