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.

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.

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.

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

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

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

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

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

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

作業中だが、パッケージがあまり良くなかった

funcionando mas não veio muito bem embalado

作業中だが、パッケージがあまり良くなかった

A good addition to the collection

A good addition to the collection

A good addition to the collection

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!

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!

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!

I bought 2 of these amplifiers. Recommended, They amplify 18 dB at 1GHz, 15 dB at 4 GHz and 10 dB at 6 GHz. Even 7 dB at 6.7 GHz

I bought 2 of these amplifiers. Recommended, They amplify 18 dB at 1GHz, 15 dB at 4 GHz and 10 dB at 6 GHz. Even 7 dB at 6.7 GHz

I bought 2 of these amplifiers. Recommended, They amplify 18 dB at 1GHz, 15 dB at 4 GHz and 10 dB at 6 GHz. Even 7 dB at 6.7 GHz

Perfect:-)

Perfect:-)

Perfect:-)

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

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

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

well l order 5-6000MHZ and you send me 50-4000MHZ that is not the product l order

well l order 5-6000MHZ and you send me 50-4000MHZ that is not the product l order

well l order 5-6000MHZ and you send me 50-4000MHZ that is not the product l order