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4.92 out of 5
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  • 22/07/2017

    For working range from 5.. to 400MHz it proves it is withing specs, although it is obviously optimized for RF use and Sinusoidal signal shape, and have less quality square signal shape for digital signal/clock use. Look at the pictures below.

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  • 17/03/2018

    It works! I measure about 12-17 dB at 5665MHz and 433MHz. There are no any ESD protection bag, no end-cup, no antistatic bag. But the chip has inner ESD protection 1000V. The chip is SBB5089Z - InGaP amp up to 6GHz. The shield has laser engraving name and description! I like this amp!

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  • 26/05/2017

    The product is really ok. It is great for amplifying weak signals up to 100 mw. Great for WSPR signals when the entry is 10 mw as it has the RaspberryPI GPIO

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  • 19/06/2017

    Great product and quality, tested in raspberry pi, with Pifm to transmit great gain, and put in Baofeng to RX, easy to connect.

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  • 24/05/2017

    Tested to 2.5gig, approximately 20db of gain measured as described. Good small wide band amplifier.

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  • 22/01/2020

    Working but didn't come very well packaged

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  • 07/04/2018


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  • 26/12/2020

    Not bad, but not really what I would call a 6GHz capable amplifier. In the attached plot, which covers 2.750GHz to 6GHz, the signal before amplification is the red trace and the output from this amplifier is the purple trace. As can be seen, at 2.75GHz, the gain is around +15dB, but even by 4.82GHz, gain is down to just +10dB and things get a little unstable after that point. The plot was made on an HP8592A spectrum analyser which goes all the way up to 22GHz. I would happily pay more for a real 8GHz capable low noise amplifier.

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  • 16/06/2021


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  • 01/06/2021


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