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1900/2100 MHz100% Brand New and High Quality. Shape Colour: Same as the picture show 1. Type: Signal Booster 2. Up Link Frequency: 1920~ 1990MHz 3. Down Link Frequency: 2110 ~ 2180MHz 4. Power: 70 ~ 40 dBm FA(1. 23MHz) 5. Gain: Gp40DB 6. Export Power (Po): 20dBm 7. Noise Figure: 4dB 8. Transmission Delay: 0. 5s 9. Impedance: 50? 10. Seclusion: >70dB 11. Power Supply: DC 12V 24V 12. Color: Black Description 1. Works with 3G WCDMA 2100MHz cell phone service
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Best in 7 days
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Best in 7 days
4.4 ★★★★★
Based on 2303 reviews
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Product Reviews
★★★★★ 5
Excellent Primer
Format: Paperback
"Foundation of Information Security: A Straightforward Introduction" stands out as a premier selection in 2024's literary landscape, particularly for those with a keen interest in information security. Published by No Starch Press, the book immediately catches the eye with its geeky cover art, appealing to enthusiasts and professionals alike. Beyond its visual appeal, the book offers a tactile satisfaction; the paper quality strikes the perfect balance of texture, enhancing the physical reading experience, while the ink quality ensures readability without the risk of smudging.
Having meticulously combed through its contents, it's evident that this book serves as an indispensable tool for information security professionals. Its comprehensive coverage, combined with an accessible approach to complex topics, makes it a valuable asset for both newcomers and seasoned experts in the field. The book's engaging writing style and practical insights contribute significantly to its status as a favorite read of the year, underscoring its importance in the professional development of information security practitioners.
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Reviewed in the United States on March 14, 2024
★★★★★ 5
Great book, and very up to date.
Format: Paperback
Great book, and very up to date.
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Reviewed in the United States on September 8, 2025
★★★★★ 5
Great book
Format: Kindle
This is must read book for individuals who are interested in the cyber security field. As a newbie, this provides a solid foundation on the technological concepts.
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Reviewed in the United States on May 22, 2024
★★★★★ 5
The best
Format: Paperback
This is the best book for school I love it
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Reviewed in the United States on November 15, 2024
★★★★★ 4
Good introductory book on information security
Format: Paperback
As mentioned in my review title, this is a good introductory book on information security. I would like to stress the "introductory" part since anyone who is already in the field or otherwise highly technical should probably avoid this book. Otherwise, for anyone just starting out in information/cyber security or otherwise curious, this will be a nice easy intro into an interesting subject.
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Reviewed in the United States on August 25, 2022
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