Can/should this connect to the flight aware pro stick? should a nesdr smartee v2 sdr - premium rtl-sd be used in addition/in place of the pro stick?

You'll need an external bias tee to connect it to the FlightAware prostick. Our LNAs are designed to be used with SDRs that have bias tees, like our RTL-SDR Blog V3. A smartee would also work. However, if you really want improved ADS-B performance, I would strongly suggest using our Triple Filtered ADS-B LNA https://www.amazon.com/dp/B078TBG4H8, as with that you would see much better ADS-B performance when combined with a bias tee RTL-SDR or external bias tee.

I'd like to use this lna for hydrogen line detection (1420mhz) since the sawbird h+ is currently unavailable. will this work?

Theoretically yes, it will "see" a spike at 1420 mhz but you will need an SDR program and maybe a raspberry pi with a sound card.

at 6 and 5 giga herz, can we use it, with less amplification ? what will be the ampluficatin ??

No, only good to about 4.0 ghz.

Can this be connected directly to a rtl-sdr? it is currently too cold to get to the antenna to hook it up there but i do not want to mess anything up

This preamp requires +5vdc be applied through its output connector to operate the transistor inside the amp.Some SDR have 5vdc present at there input connector some don't.See if a DC voltmeter can detect a voltage to its input connector. If not a power injector will have to be bought and placed between the SDR and this preamp.A seperate +5dc power source would be needed to run the power injector and the preamp.

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Wideband Low Noise Amplifier Bias Tee Powered

Product ID: 82261532

Details

Manufacturer
RTL-SDR Blog
Maximum Supply Voltage
3 Volts
Minimum Supply Voltage
3 Volts
Mounting Type
Surface Mount
Voltage
5 Volts

⚡0.6 dB ultra-low noise figure

📶50 MHz - 4 GHz ultra-wideband

🔊18.7 dB high gain @ 900 MHz

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Description

🚀 Amplify your signal, amplify your edge!

POWERFUL SIGNAL GAIN - Boost your signal strength by 18.7 dB to dominate weak transmissions.
ROBUST ESD PROTECTION - Dual-layer ESD and GDT safeguards keep your investment safe near outdoor antennas.
PREMIUM LOW NOISE FIGURE - Experience crystal-clear reception with just 0.6 dB noise at 900 MHz.
ULTRA WIDE FREQUENCY RANGE - Seamlessly covers 50 MHz to 4000 MHz for versatile signal boosting.
BIAS TEE POWERED CONVENIENCE - Easily powered via 3-5V bias tee—perfect for streamlined setups.

The RTL-SDR Blog Wideband Low Noise Amplifier is a bias tee powered, high-performance LNA designed for frequencies from 50 MHz to 4 GHz. With an ultra-low noise figure of 0.6 dB and a gain of 18.7 dB at 900 MHz, it significantly enhances weak signals for SDR applications. Featuring robust ESD protection and requiring 3-5V bias tee power, it’s ideal for professionals seeking reliable, wideband signal amplification.

Specifications

ASIN	B07G14Q6XX
Best Sellers Rank	#18,883 in Electronics ( See Top 100 in Electronics ) #93 in Audio Component Amplifiers
Brand Name	RTL-SDR Blog
Customer Reviews	4.6 4.6 out of 5 stars (323)
Manufacturer	RTL-SDR Blog
Material Type	Pcb, Electronic Components
Maximum Supply Voltage	3 Volts
Minimum Supply Voltage	3 Volts
Model	WBLNA
Mounting Type	Surface Mount
Number of Channels	1
Output Power	6.9 Watts
Package Type Name	box
Part Number	WBLNA
Specification Met	Performance Specifications Met
UPC	651989513519
Voltage	5 Volts

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