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GSM – Wikipédia
Mobile repeater 900 - 1800 - 2100 MHz 3G signal booster
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Próba NYÁK A6 GPRS GSM WIFI elem Quad-band 850 900 1800-1900 MHZ
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COMPATIBILITY STUDY FOR UMTS OPERATING WITHIN THE GSM 900 AND GSM 1800 FREQUENCY BANDS
Pathloss: GSM (chapter 1)
Antennák / GSM 1800 Kategória
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SIM900A 900/1800 MHz GPRS / GSM Modul Arduino
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Antenna GSM/DCS (900-1800 MHz) 1/4, Without cable
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Measurement results of available power levels for GSM900, GSM1800,4G... | Download Scientific Diagram
S-parameters for each single-band. (a) GSM-900. (b) GSM-1800. (c) UMTS-2100. (d) Wi-Fi 2.45.
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