File:SECTERA-TIMEPORT tri-band GSM cell phone - National Cryptologic Museum - DSC07954.JPG - Wikimedia Commons
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Simulated and measured quad-band GSM T/R X, WCDMA, TD and LTE ports... | Download Scientific Diagram
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Table I from A 0.25-/spl mu/m CMOS quad-band GSM RF transceiver using an efficient LO frequency plan | Semantic Scholar
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Mini GSM/Cellular Quad-Band Antenna - 2dBi SMA Plug : ID 1859 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Handsfree Wireless Quad Band GSM Desk Phone (Rechargeable, 2.4 Inch LCD Screen) [TXD-M780-White]- US$24.05 - PlusBuyer.com
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Quectel M66, Quad-Band GSM/GPRS SMT module w/BT Modules Cellular, GSM/GPRS M2M, Wireless and IoT TOP-electronics USA: Web-shop
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Amazon.com: WirelessTerminal, Fixed Wireless Terminal Quad-band GSM 850/900/1800/1900MHz Alarm 100-240V for Home(US Plug) : Electronics
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